When you first turn on the vehicle if should be cold and as the vehicle warms up it should slowly rise to the midway point between cold and hot. Start the car cold, monitor both radiator hoses with your hands, be careful of course. If your vehicle is equipped with a temperature gauge (and not just a temperature light), it will always show you a low reading or none at all. A Guide to Your Car's Temperature Gauge: What's Normal and What's Not Monday, 19 June, 2017 Paying attention to how hot your engine is running is necessary in maintaining the health of your vehicle. Note: the engine was started and idled for 30 seconds every 15 minutes to mix and circulate the coolant past the temperature sensor to get an accurate reading. The car warms up and you get sort of warm air but if you put the fan higher it starts blowing colder all this time it stays in the middle between hot and cold. Diagrams: System Pressure Chart Get a quick look at what an average A/C system looks like, along with the compressor manufacturer and what the specific R-134a requirements are for your car. Your car’s A/C, much like your home’s A/C or refrigerator, depends on the thermodynamic properties associated with coolant gases operating within a closed loop under the correct pressure. I have a 2002 Ford Taurus that I bought used to get my husband to and from cancer treatment so 140 miles 2 times a week. If you have a scan tool with live data, check the engine temperature when the engine is cold, it should be close to outside temperature. gauge fluctuates constantly between normal and 210^ in cool weather(40^ & below). When the engine is cold, the resistance is high. In the fall, the colder weather will significantly lower your tire pressure. But since the past few weeks, the temperature gauge hardly touches the earlier settling point even if I drive for an hour or two. The computer in every fuel-injected car must know two things before it can figure out the correct cold-start air/fuel mixture: the engine coolant temperature and the outside air temperature. Tressler Jr. I'm living in Montreal, so it gets pretty cold during winter (< -15 Celsius). This is the temperature the thermostat will start to open, give or take 3 degrees The thermostat fully open about 15-20 degrees above its rated temperature Many thermostats have a “jiggle pin” or “check valve” that allows trapped air in the cooling system to pass through the thermostat and be released from the system. That is normal and it confirms that the therm is opening OK. 1A Auto has a large selection of Engine Coolant Temperature Senders for many makes and models, and ground shipping is always free!. My car temp gauge suggests the car gets too hot but also stays too hot long after its stopped running? ie i get in iT an hour after driving it and its still pretty warm. CASE 1: If the thermostat fails and stays stuck open, you'll see the following symptoms: BAD gas mileage. I have a 2002 Ford Taurus that I bought used to get my husband to and from cancer treatment so 140 miles 2 times a week. Also after running car radiator fan stays on for 30 seconds. but when we turn the heat up, it stays kinda cool/luke warm. However, the temperature gauges on recent Subarus (as well as on other makes with which I am familiar) are "buffered", meaning that they essentially only register three temperatures: Stone cold, "normal", and "your engine is overheating and you need. Car ran fine until that day. But upper radiator hose stays cold. My coolant temp gauge normally reads at about half way. It was promptly replaced and thankfully nothing else was affected. 7CDTI won't ever climb above minimum. This sensor is nothing more than a thermistor -- a variable resistor that changes resistance with temperature changes. position, stays closer to the cold position (C) or slightly under - at just about the five o'clock position. My car, a Nissan, also has no temp gauge. Oil Pressure Gauge Always Pegged High. This is replacement of air that got burped out during yesterday's driving. Compare the reading to the table. Simply put: because the engine warms up before the gauge does. The sensor informs the PCM and instrument cluster temperature gauge of engine temperature and is located in the aluminum of the cylinder head in the V of bank 2 near cylinder #5. The gauges will test themselves and you can make sure it's actually capable of sweeping all the way.   Car starts and runs fine temperature gauge moves up to correct central position then whilst driving it drops back down to cold, few minutes later back up to the centre ??. The car certainly warms up alot faster than it used to from a cold start eg after 15 or so min of normal driving, the temp gauge will go from cold right up to mid range. This is why, once your car warms up, the temperature gauge should remain relatively static. position, stays closer to the cold position (C) or slightly under - at just about the five o'clock position. If it’s really cold outside the engine’s temperature gauge may stay on cold. Also with this the transmission clunks when it - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. It's not wise to drive a car with any of these things running low, but most of all if your "Oil" or "temperature" light comes on even for a short time, immediately shut off the engine. The car gets to temp while sitting still, but the temp (from the engine and in turn the hvac heat) drops when driving. This is the temperature the thermostat will start to open, give or take 3 degrees The thermostat fully open about 15-20 degrees above its rated temperature Many thermostats have a “jiggle pin” or “check valve” that allows trapped air in the cooling system to pass through the thermostat and be released from the system. Extreme Temperature Swings. Check your owner's manual to see if your car uses "long-life" coolant. When your engine is cold, it actually operates with less efficiency. And then when it wants to the coolant gauge marks correctly then the A/C starts to work properly. What causes a car to overheat while idling like that, and should I be worried? Answer:. No not necessarily, the smart car has set parameters for all the engines settings, by changing them from standard you run the risk of the engine management unit thinking there is a problem. The question here for Jersey Jim what temperature does your gauge start to read if you have temp. If the engine makes unusual sounds or it does not start at all, it's best to stay on the safe side and call for roadside assistance to have your car towed. Here is an image showing the location of the two temperature sending units (or sensors) for your vehicle. When I start my car the water temperature gauge is already in the red hot zone and continues to bypass the red zone and faces downward toward the floor as the car warms for less then 3 minutes. Cold weather could cause more warning lights inside your vehicle. On most vehicles, the temperature gauge reads cold until the engine has run for a few minutes. He stated above that he already checked the temp with the scan tool. Is the engine really overheating or do you have a faulty temperature gauge or sender? Open the hood and check for signs of overheating, like the aroma of antifreeze and the rumbling of boiling. Now the A/C button can be depressed and the temp gauge rises, even if the A/C button is depressed or not. THe thermostat is supposed to open as the water temp goes up. 5L Class world-record speed of 245. How to Diagnose a Failed Car Thermostat: Two Easy Symptoms by Marjorie, Cars for Keeps Social Media Manager Your car's thermostat would easily fit in the palm of your hand, yet like many vehicle components, a properly functioning thermostat is critical for engine health and proper vehicle function. Turn the engine OFF. The following dashboard warning lamps and symbol indicators are to inform the driver that a condition of the vehicle may be serious. Get the best deals on Car & Truck Water Temperature Gauges for Mercury when you shop the largest online selection at eBay. With a 2LT I assume you have manual temperature control so there isn't a temp indicator for the HVAC, right? So if I understand right, only the coolant temp gauge on the far right of the dash pods fell to Cold (like the car hadn't been running) and the AC no longer blows cold air and the rest of the gauges work just fine. Ford Focus 2004 - Temp gauge issue !!!. cant be my thermostat because I don't have one in it. It should be receiving. Posted 6:42 the temperature drops over night overnight temperature hits the low 40s, your tire pressure will drop down by 5. the coolant sensor is under the thermostat housing. This is done by connecting a resistor and certain combinations of them to the wire(s) that goes to the gauge temp sender in the thermostat housing. Is there a way to check if the engine fan stays on when the temperature gauge goes down, since this only happens when i am driving and it stay down only for a few seconds. While the car is in motion temperature gauge is in the middle. I will check the hose in the morning to see if it stays cold or warms up while idling. Gauge running on the cold side. If you have a short in the wiring (other than the bit from the plug to the sensor), the gauge will stay the same. E36 Temperature Gauge - Is This Normal? Normal temperature flucuations as the car sits in traffic or drives down a cold Motorway is accounted for within the range of temperatuers the car deems. 2L I-6 Engine and Drivetrain > OEM Issues > Engine Temp Gauge stays pegged. 30 minutes of highway driving, hot air comes out again. Temperature gauge is on left hand side. Coolant Flow Radiator And Engine Block Below is an explanation of this system's operation The Thermostat Just like your body needs to warm up when you begin to exercise, your car's engine needs to warm up when it starts its exercise. Set the multimeter to 20V DC and test the wiring going to the gauge. i brought the car regularly into service based upon their prescribed service program for this car. Is it tied in with the temp gauge? Could it be something simple like a blown fuse? Any help is appreciated!. I change the small temperature sensor but did not work. Both wires should go on the sending unit, nothing to ground. Computer gave me a code 44. Maybe the fan is malfunctioning. Your car temperature gauge seems straightforward: a needle that shows you whether your engine is hot or cold, with a "safe zone" of temperatures in between. Pull the instrument cluster out of the dash using steps in your repair manual, and remember that plastic dashboard and trim parts are delicate (and often brittle in an older car). Is the engine really overheating or do you have a faulty temperature gauge or sender? Open the hood and check for signs of overheating, like the aroma of antifreeze and the rumbling of boiling. Here's a seemingly simple problem - I noticed that the temperature gauge of my mother's 2004 Opel Meriva 1. " A "grounded" temperature sender lead will pin the needle past maximum temperature. Average failure mileage is 114,750 miles. Your problem is the temp gauge, wiring and/or sensor. How long does my food stay safe after the power goes out? before an outage so you can properly gauge the temperature as it rises — and once the power comes back on. what happens is. If your car has auto temp -that could be a sun sensor for auto mode. The temperature gauge measures the temperature of your car's engine coolant. 2) Engine temperature exceeding about 15/16ths on the gauge. Way too many places for things to happen to signal besides have the gauge just stop at it's usual place. From: "Frank E. Although such a gauge is rarely fitted in a mass-produced vehicle, knowledge of the outside air temperature (OAT) can be advantageous, especially at night, when the temperature may drop below zero quite unexpectedly. If your vehicle is equipped with a temperature gauge (and not just a temperature light), it will always show you a low reading or none at all. The gauge starts at 100 so it stays 30 degree's above. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Cruze based on all problems reported for the 2011 Cruze. 5L Class world-record speed of 245. If the sensor reads 30-50 Ohms when the engine is hot then there may be a problem with the wiring back to the gauge or with the gauge itself. Right now when I drive the car it warms up really fast going to the first mark and when I start driving it in residential areas making stops the mark goes towards the middle but doesnt quit reach it there and then goes down when I start driving again. Now that our engine/bay are all nice and clean, wanted to fix it asap, so put a new gasket in, and now no more leak (good news!). The 1998 and up Town Car engines do not use a coolant temperature sensor, instead they use a Cylinder Head Temperature (CHT) sensor. When it goes bad the majority of the time it tells the ecu its cold when the car has reached operating temp and therefore dumps mad fuel. In that case, the temperature gauge will remain in the blue. So when my car is warmed up it stays half way and sometimes goes up a bit then comes back down. I replaced the thermostat with a new one but still the problem wont go. I have a 2013 Chevrolet Cruze and this morning my temperature gauge stopped working and the message"AC off due to high engine temp" came on. Cold weather could cause more warning lights inside your vehicle. Why is Temperature Gauge High? 1. Water Temperature Gauge Reads Low was created by Corey Longbottom Hey everyone, I drive a 2000 Honda Accord EX V6, and I've noticed that the water temperature gauge in the instrument cluster reads low (the needle points about halfway between the cold mark and the middle mark) while driving on the highway. My car has an automatic transmission. The Dodge Journey is a mid-size crossover SUV that debuted in 2007. Using some parts from a different source than OEM for the vehicle the hot rodder is working on. Temperature gauge in the vehicle is staying on cold even after driving. Even when both of them had a good 1500pds of rock in the bed the temp did not get high enough. Coolant Temperature Gauge Always Stays In Cold Position One month ago, the temperature gauge of my 1996 Ford aerostar(3. When the car is turned off the needle sits at the bottom off the scale (below 1 bar). Wish the equally useless (to me) MPG bar graph could be reconfigured to a engine temp bar graph. I've noticed in the past week or so my temp gauge is running all the way on the cold side, especially when i have the heat on. 108 degrees ambient is the highest temp I have been in since I started keeping a thermometer in the vent. If the PCM detects a signal voltage lower than the normal operating range of the sensor then P0117 code will set. All my car before this would stay exactly in the middle. When the ignition is turned on (engine still off) the needle jumps to a point over 5 bar. Overcooled engines run inefficiently, which leads to increased fuel consumption and higher emission levels and engine parts enduring more wear. Jeep car warning lights, car warning symbols such as engine management light, ABS light, airbag light this guide will help you. Temp gauge shot up then down - all OK? Twice in the past 3 days my temp gauge has shot up into the red upon starting after being away for 30 minutes or so, then as soon as I get moving it shoots back down again. There were no other signs of over-heating (no steam, smoke and no burning smell and no changes in the way the car was driving). If the low reading still occurs after the engine has had a few minutes to warm up, it could be due to a malfunctioning thermostat or problem within the temperature gauge itself. But if your temperature gauge continues to read cold after you’ve been driving for a while, something else is going on. closed as much as. But, the thermostat in a car is not like the thermostat in a house's AC/Heater system. After approx. So it doesn't bother me, I can still tell when my car is hot/cold. 2 Release the INFO button when the outside temperature display flashes. the car runs like a dream except for the heater. General Motors temperature gauge troubleshooting Temperature gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. I noticed that it was past halfway on the temperature gauge, so I threw the defroster on maximum heat/maximum fan- it was cold. This sensor is for the temperature indicator on the dashboard. When the car is off and the key out of the ignition and the head light switch is pulled, the dash lights and the console gauge lights all come on as they should. Allow the engine to idle for around five minutes. You should check your temperature frequently, just as you do with your other gauges, as an overheated car can cause you a plethora of complications. You may have been feeling a little bit warm lately and wondered if you are coming down with a cold or something. I've noticed the temp gauge in my wife's Buick and sister in law's Pontiac both are idiot gauges. The temperature gauge on the car is not working at all anymore, just stuck at cold. You have lost coolant. No engine light is on. Thermostats can stick both ways , just the other day our local garage had such a car in with strange temperature behaviour , cold one minute , overheating the next , new stat cured all that. 97 mustang GT 67k milesTemp gauge when fully warm fluctuates from the N too the R on the gauge. Very good information and I'll have to keep my eye on the resevor tank. closed as much as. I had the light read last night and the P2181 code came on and recommended a new thermostat. Normally anything between 83°C and 115°C is shown as horizontal on the gauge. Engine Running Cool - Not Thermostat Problem. I found that every time when I drive my 850 on the highway during winter, the engine temperature gauge on the dashboard would drop to almost at its lowest position, and the whole cabin would become freezing cold. The computer in every fuel-injected car must know two things before it can figure out the correct cold-start air/fuel mixture: the engine coolant temperature and the outside air temperature. Temp gauge shot up then down - all OK? Twice in the past 3 days my temp gauge has shot up into the red upon starting after being away for 30 minutes or so, then as soon as I get moving it shoots back down again. Average failure mileage is 114,750 miles. 30 minutes of highway driving, hot air comes out again. Has anyone else had "high" inaccurate readings from SW water temp gauges, and if so, how inaccurate were they reading? My gauge appears to be reading up to 50 degress higher than actual engine temp. 2012 Chevrolet Cruze: Temperature Gauge stays on cold even after driving. The sensor informs the PCM and instrument cluster temperature gauge of engine temperature and is located in the aluminum of the cylinder head in the V of bank 2 near cylinder #5. If everything else is in order, failure in this test should be because of a faulty coolant temperature sensor. Gauge running on the cold side. 2012 Chevrolet Cruze Temperature Gauge stays on cool even after driving, system says "coolant temperature -- Fahrenheit" 1 Answer. This time the gauge is still over to the 260 mark, but is not pegged. The weather outside is frightful, meaning mornings are freezing and roads are slick. A Guide to Your Car's Temperature Gauge: What's Normal and What's Not Monday, 19 June, 2017 Paying attention to how hot your engine is running is necessary in maintaining the health of your vehicle. I noticed the temp gauge was in the middle when it was idling. COLD WEATHER RANGE LOSS. The gauge starts at 100 so it stays 30 degree's above. do not see any leakage engine does not smell hot took about 1/2 gallon of anti freeze. Average failure mileage is 114,750 miles. Also during accleration it will rise to 210^ and drop back down, never staying at a constant temp. As for the cost well not had the car long so the garage did it all for free under the warranty even though it has just run out so top marks to them for that. No A open Therm can make the car run cooler all the time. Now, the gauge always stayed at cold position even when I short circuited the coolant sensor connector to engine ground. here's his list to consider some of the following: How cold temperatures affect your car. but the engine is so hot you can't touch it while just sittin there and idling and there is smoke coming out from around the exhaust manifold, which it never did before. Hi all, I figure since the 951/944 AC systems are pretty similar, I might have a better chance of someone explaining this to me on this forum. VS Berlina 1997. If the light blinks red then blue , an electrical malfunction in the cooling system is indicated. The A/C was working for a bit then it started to not work, instead blowing room temp air and the temp gauge was rising to the point of overheating. - When the ignition switch is placed in the ON position, — If the outside temperature is below 258F (- 4 8C), the outside temperature display flashes for 20 seconds, then stays on steady. The coolant temp gauge is much more stable now, but it seems to open around 230 degrees when the truck is totally cold, it will then drop to about 160 and then rise and pretty much stay around 190 or so, two ticks below the 210 degree mark. My 330ci has 52,000 miles on it so I am thinking thermostat. Remove the valve cap from one of your tires. It can provide you with an early warning of a potential problem. From: "Frank E. If you connect the sending unit wire to ground, the gauge should switch to read hot. The coolant system is designed to keep the engine at a near constant temperature. However, as the weather has gotten colder, it has developed an issue with getting up to the proper running temperature (it is running very close to cold…closer when it's colder outside). Car Temperature Gauge: What to Do if It's Too Hot, Too Cold or Broken. Your gauge will not work with a single prong sending unit, that is for a guage. The temperature gauge on the car is not working at all anymore, just stuck at cold. My maxima's temp gauge has been acting odd lately and I want to be sure I get whatever is wrong fixed. So in a sense a thermostat is not an open or closed valve but rather a device that allows a certain amount of coolant to flow depending on the temperature of the fluid. This feature is not available right now. Normally anything between 83°C and 115°C is shown as horizontal on the gauge. Does the gauge move, if wiring and gauge is good the gauge will peg hot, unground peg cold or vise versa. also my temp light stays on, but if i hit a bump it will stay off for a tiny bit then goes back on. If your tire pressure has been set during the hot summer months, the first major cold wave will cause the air to contract inside your tire, lowering the pressure, thus setting off your TPMS. With the A/C turned OFF - On a cold day the pressure will be low, on a hot day the pressure will be high. Then return to add more air if needed. The gauge starts at 100 so it stays 30 degree's above. I replaced the thermostat then, the little rubber o-ring was dislodged and blocking the thermostat from closing. In that case, the temperature gauge will remain in the blue. Sorry but I don't know the exact location on the sensor but I'd look for one somewhere near the thermostat housing. When you first turn on the vehicle if should be cold and as the vehicle warms up it should slowly rise to the midway point between cold and hot. If your vehicle is running with the temperature gauge in the red, it is overheating. On the inside my car looks like a fighter jet. If your car has no heat, not only would the inside of your car feel like an ice box, but a broken heater can prevent your defroster from blowing warm air to your windshield to eliminate ice and fog, which can. Temperature gauge inside car doesn't work. Fast forward to today, driving home and car never warms up, coolant gauge is full cold, digital gauge shows --- , oil temp gauge is full cold. the car runs like a dream except for the heater. also, if you can, get your speed up and put into neutral and turn engine off and coast as far as you can before turning on engine again, and do it again, this will help. It happened again today and I noticed the gauge has been a bit on the low side lately. I've got one kid who drives and one who's about to and I noticed something important about driver's ed classes (and other kids' parents, to be. Tips for cold, cold car care. E, Instrument clusters From stock or your faulty unit rebuilt with a LIFETIME WARRANTY. A major problem with the Bmw E34/E32 especially the BMW M30 3. I cut the car off and restarted and the needle went uo to Hot and came back down like it is not working. When temperatures are extremely high within the inside of the car, the temperature gauge will greatly increase and the car could suffer from many different problems. Locate the lower and upper radiator hoses, and touch each of the hoses with your palms/hands. On the inside my car looks like a fighter jet. Now unplug the sensor. The air worked fine two days ago. If you have a bad sensor, the gauge will go to zero. My truck and as above my dads truck ran cool enough to see the Temp gauge not rise as high as it should. Run the car until the engine reaches normal temperature. I noticed that the temp gauge was on Cold with the needle not moving, though the car was warmed up. E36 Temperature Gauge - Is This Normal? Normal temperature flucuations as the car sits in traffic or drives down a cold Motorway is accounted for within the range of temperatuers the car deems. After a recent fresh 350 engine installation in my 1986 GMC 3/4 ton 4WD pick up truck, my stock dash mounted temp gauge quit working. After refuelling the fuel gauge will stay on empty or the fuel gauge is erratic. Watched my temp gauge 160 degrees, 170, 180 and since my car has a brand new 180 thermostat I should get a burp any moment and fill the radiator the rest of the way. If the thermostat can’t signal to the car that the engine is warm, the coolant won’t be sent over to provide heat to your heater core and the air will stay cool. Both wires should go on the sending unit, nothing to ground. The gauge starts at 100 so it stays 30 degree's above. Cycling may continue for several minutes in cold weather. 2012 Chevrolet Cruze Temperature Gauge stays on cool even after driving, system says "coolant temperature -- Fahrenheit" 1 Answer. My vehicle had 2 separate Coolant Temperature Sensors. Opel Corsa temperature gauge stays cold? 2 Answers Hi I have a 2007 Corsa utility 1. 108 degrees ambient is the highest temp I have been in since I started keeping a thermometer in the vent. If it is one wire unplug and jump to battery ground or block. If your thermostat failed, it wouldn't turn cold while driving. If you see that the temperature gauge is within a normal range and engine fluid levels are sufficient, try to start the engine. You should check your temperature frequently, just as you do with your other gauges, as an overheated car can cause you a plethora of complications. Temperature gauge inside car doesn't work. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. CarComplaints. Temp gauge shot up then down - all OK? Twice in the past 3 days my temp gauge has shot up into the red upon starting after being away for 30 minutes or so, then as soon as I get moving it shoots back down again. If it is stuck open, the water would never heat up. The temperature needle needs to be at or around the centre to be at normal operating temperature. I noticed that the temp gauge was on Cold with the needle not moving, though the car was warmed up. Watch the temp gauge as the engine warms up. The car used to heat over 200 degrees before the thermostat was replaced. Automotive electricity is 12-15 volts of direct current (DC). Very good information and I'll have to keep my eye on the resevor tank. Now that our engine/bay are all nice and clean, wanted to fix it asap, so put a new gasket in, and now no more leak (good news!). Issues with the cooling system can also cause the engine to run cold. If the thermostat can’t signal to the car that the engine is warm, the coolant won’t be sent over to provide heat to your heater core and the air will stay cool. the heat work so dose the AC this is on a 2001 kia sportage and if someone can help me out on what to do to fix this myself like tell me what it is and where to look on the car. Good time for a test! Stick a thermometer gauge on the center area where you can read it without opening the car - place the car in the sun for 4 hours and see how much difference between the app and your gauge. Turn the engine OFF. Message shows on dash saying "AC Turning off Engine overheating". With a 2LT I assume you have manual temperature control so there isn't a temp indicator for the HVAC, right? So if I understand right, only the coolant temp gauge on the far right of the dash pods fell to Cold (like the car hadn't been running) and the AC no longer blows cold air and the rest of the gauges work just fine. All car rentals may have usage constraints to them. Pressure that is too much lower or higher shows there is a problem. I have a 2013 Chevrolet Cruze and this morning my temperature gauge stopped working and the message"AC off due to high engine temp" came on. I'm wiped out of ideas. Some of my issues are I think the heater core is bad cause my heater wont work (barely get luke warm) and I have a service engine soon light on which autozone said had something to do with my cooling system. It happened again today and I noticed the gauge has been a bit on the low side lately. Engine Running Cool - Not Thermostat Problem. Ford Fiesta Dashboard Warning Lights This section details many of the dashboard warning lights and symbols with pictures and their meanings found within the Ford Fiesta range. Tips for cold, cold car care. Sorry it is a 2004 Chevrolet Impala 3. 2012 Chevrolet Cruze Temperature Gauge stays on cool even after driving, system says "coolant temperature -- Fahrenheit" 1 Answer. Its Mercedes OM603 6 cylinder diesel engine. Overcooled engines run inefficiently, which leads to increased fuel consumption and higher emission levels and engine parts enduring more wear. But if your temperature gauge continues to read cold after you’ve been driving for a while, something else is going on. Analog Style Oil Temperature Gauge 100 ~ 300F ; Analog Style Water Temperature Gauge 100 ~ 300F ; Analog Style Transmission Temperature Gauge 100 ~ 300F ; Analog Style Exhaust Gas Temperature Gauge 0 ~ 1800F ; Analog Style Voltmeter Gauge 8 ~ 18V ; Analog Style Water/Methanol Injection Flow Gauges 0 ~ 500cc / 0 ~ 1000cc ; Weather Resistant. Coolant that's diluted or weak can freeze when the temperature drops below 32 degrees Fahrenheit. I always unplug them when I have to work on a hot car and let the fan cool the car. Some cars have smaller Rad's/weak Rad caps/other issues that can cause them to run warmer. Shop mechanics, have you seen situations where engine runs hot but temperature gauge stays low? Coolant was replaced about a month ago. Fast forward to today, driving home and car never warms up, coolant gauge is full cold, digital gauge shows --- , oil temp gauge is full cold. With gauges like this Auto Meter AirDrive Water Temperature Gauge installed, you will have a better idea of what’s happening in your 2008-2019 Dodge Challenger. I cut the car off and restarted and the needle went uo to Hot and came back down like it is not working. Reset the system by restarting the engine, and watch the VSA. When you first turn on the vehicle if should be cold and as the vehicle warms up it should slowly rise to the midway point between cold and hot. Temperature warning light on cold start On some of the recent cold morning starts I've had, the car gave a beep and the temperature warning light flashed. Temperature gauge fluctuating but engine doesn't seem to be overheating I just bought a car from a friend and they had told me that the head gasket was replaced ahead of schedule, which was good news because my suzuki's head gasket blew and I had a whole bunch of overheating problems. Read more Dodge reviews to learn about other models. I did not test the thermostat in hot water before installation. Note: the engine was started and idled for 30 seconds every 15 minutes to mix and circulate the coolant past the temperature sensor to get an accurate reading. [Archive] Engine Temp Gauge stays pegged on hot OEM Issues Engine Temp Gauge stays pegged on hot [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4. Engine Running Cool - Not Thermostat Problem. If your car has auto temp -that could be a sun sensor for auto mode. The temp gauge will be normal then start going in reverse to the cold side and at that point it blows the lid off the reserve tank and sprays coolant all over. This can be a helpful tool for any vehicle with an automatic transmission, as well as diesel trucks that tow heavy loads over long distances. I am not really sure whether it is the temperature sensor or the temperature sender. Now the A/C button can be depressed and the temp gauge rises, even if the A/C button is depressed or not. Has anyone else had "high" inaccurate readings from SW water temp gauges, and if so, how inaccurate were they reading? My gauge appears to be reading up to 50 degress higher than actual engine temp. If you have more questions feel free to ask. The following dashboard warning lamps and symbol indicators are to inform the driver that a condition of the vehicle may be serious. Truth be told, just about any properly running vehicle will pass emission testing. The gauge was at the bottom when I started the car. If the needle goes to about the middle of the gauge, that means the engine has reached normal operating temperature, usually between 180 an 210°F. Its also giving a message saying "A/C off due to high engine temp" When I go through the vehicle information options to the Coo. But, when it's cold, it doesn't run efficiently. Information in View. When you first start the car, the gauge will read cold. Over the last few days I have been noticing the coolant appears to stay hot for a long time after I shut the car off. I have taken this car for diagnostic and repairs are too expensive to fix. Do not continue driving with an overheated engine. It's basically a thermally activated mechanical (spring-loaded) valve that opens up the coolan. So when my car is warmed up it stays half way and sometimes goes up a bit then comes back down. If the thermostat becomes stuck in the open position, there is continuous flow of coolant into the radiator causing the engine to run cold. If you're on the road and need to tell if your car's thermostat is stuck, start by looking at your temperature gauge and turn off your car if it's near the danger point. Engine Running Cool - Not Thermostat Problem. I started getting bigger variations in the Temp Guage, in which my car was running to cool. The sensor informs the PCM and instrument cluster temperature gauge of engine temperature and is located in the aluminum of the cylinder head in the V of bank 2 near cylinder #5. As to the value of a temperature gauge--if the gauge is a "real" one, it can be of great value. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Cruze based on all problems reported for the 2011 Cruze. My temp gauge stays on cold like the engine on car is cold i get minor heat when i turn my heater on. E, Instrument clusters From stock or your faulty unit rebuilt with a LIFETIME WARRANTY. Its also giving a message saying "A/C off due to high engine temp" When I go through the vehicle information options to the Coo. Car Temperature Gauge Stays on Cold - Causes & How to fix it [Guide] Close. A popular mod for my 1995 F150 is to clip a resistor on the gauge panel an swap sending units to make the gauage read like a gauge instead of an idiot gauge. figures on the gauge face. With the A/C turned OFF - On a cold day the pressure will be low, on a hot day the pressure will be high. It would stay in the middle for a few minutes and then rise to hot again and stay there for a couple of seconds and then suddenly go back to normal. she drives a few hours away from home for her job and I would like her to be warm. If the temperatures are not within the specified ranges, false in-car temperature sensor DTCs will be displayed. Remember, cars can still overheat in winter, especially if the. As for the cost well not had the car long so the garage did it all for free under the warranty even though it has just run out so top marks to them for that. Temperature gauge issues. Another telltale sign of your coolant temperature sensor not functioning properly is if your engine is overheating frequently. The odd thing is that the temp gague on the dash shows normal opperating temp! From cold it rises steadily as normal then stays in the normal opperating range.