temperature gauge fluctuates from normal to hot

Fans keep going on and seem to stay on. Have you noticed a loss of water/coolant? About 3/4 up and when I pulled over and shut the car off I heard a bubbling sound and it was smoke/steam coming from the water Reservoir. Depending on the mileage of the vehicle and/or wear and tear, this system may be due for a flush. Powered by Discourse, best viewed with JavaScript enabled, pressure test the cooling system including the radiator cap, water pump is faulty or debris is blocking the inlet or outlet, make sure the radiator fan is spinning when it should and at the correct rpm. This could cause the engine to run hotter than normal but may not be indicating on the temperature gauge. have the same problem? Second step will be the hoses. How many miles are on the vehicle? I tried my luck and drove it 5 miles home with NO negative indications whatsoever.. Could it possibly have been only the temp gauge frying by itself in the dash ? Have you noticed any issue with engine start up or have you experienced a lack of power? it may additionally be a foul floor between the engine and the physique. A week later we had issues with the heaert not getting hot and took it back. But while I was driving I started smelling what seemed to be wires burning. I all ready had the water pump replace and radiator cap replace about 5 months ago and it just started happening last couple of weeks. Unfortunately, it may be best to have the vehicle diagnosed by a certified ASE mechanic in this case. My 2000 Ranger has a heater shut off valve on the coolant hose but there is a 3/8" bypass hose that makes virtually the same connections.The bypass is very convenient for burping the engine. After replacing the radiator cap, temp sensor and thermostat I guess it’s time to buy new hoses for the radiator tomorrow. How many miles are on the vehicle? Is the vehicle losing water/coolant? Thank you for asking about your Ford Taurus. As I sat at a red light it would change and then go back up. I thought these wild temp swings were evidence of global warming. Subscribe to our newsletter now! Maybe that’s the explanation. I have a 2003 Honda Civic and my temperature gauge has been rising to H, but there are no signs my car is running hot (no smoke/steam and engine sounds like it’s running fine). The temperature gauge then began reading at the 2/3 mark and it never went past 1/2 before. Why is My Oil Leaking After an Oil Change. Thanks for your question about your 2017 Dodge Journey. Thank you for asking about your Mercury Grand Marquis. How often do you look at your temperature gauge? I have a 2005 Honda Accord hybrid and it stalled out and when I press the gas the whole car looses power and won’t go and jerks and it’s only happened in weather over 105 degrees but the temperature gauge is not going up. This will alleviate any air stuck in the system. The most common reason for a vehicle to overheat, without having a coolant leak, is a faulty thermostat. Thanks again for your question! If you are unable to locate the leak, you may want to bring the vehicle in to a shop for an inspection. When my car is parked the car is fine as soon as we start driving, it start going up to hot. Hi er car won’t even make it a mile before over heating again. It may be a good idea to replace the thermostat, as this could lead to more issues down the road if it is faulty. New radiator cap. Bypassing the heater core is a no-go. I thought there was a hose or reservoir leak so i let it cool. Are you able to locate where the coolant leak is coming from? Unfortunately, the issue you’ve described could happen for a number of different reasons. You can use a “Block Dye Tester” to confirm whether or not that is the case. Thermostat is new.. If the temperature gauge is jumping around rather quickly, it could be a sign of a faulty temperature sensor. Replacing the faulty temp sensor should correct the problem. The engine does not feel hot when I lift up the hood. Your normal body temperature will keep changing throughout the day – you can notice a change of up to 1°F throughout the day, which usually depends on how active you are. Any ideas on what this may be? If coolant flow seems restricted, some possibilities as to why it would overheat are a faulty thermostat, water pump going bad or a clog in the cooling system. What could the issue be. What could be wrong? I have recently changed the sensors and new thermostat so I don’t know what’s going on. as for the gauge fluctuations, the actual gauge may be malfunctioning. in the mouth since I really never use the heater anyway. Any ideas on what could cause this? Well, we've got the answers! Thank you for asking about your Golf Mk3. Also, having the cooling system flushed would be recommended anytime you are replacing parts/components so that you are not contaminating the system and the new parts with jellied antifreeze or other debris. But; the low coolant light stays on.. If you are not getting a check engine light or indicator on the dash, you should be good to go. Changed water pump yesterday due to leak. Is it a low coolant indicator that is coming on? WRENCHER1 MEMBER; The system has air pockets in it for some reason. Yes sir only when the the aircon is on She said it was overheating and smoking from under hood the smoke was white . If temperature gauge does not indicate cold, go to step 3). Also during accleration it will rise to 210^ and drop back down, never staying at a constant temp. What is wrong? When you look at your car temperature gauge, the needle should be in the center or just slightly below center (toward “C”). When I get home I leave the car to cool and I check the radiator, and it is still filled with coolant. Required fields are marked *. It’s possible the thermostat is becoming stuck at times, causing the rise in temperature. If the temperature gauge goes to the midpoint and then starts to drop, it could be an issue with the thermostat. I have a 2001 grand prix gt and i relpace the ECT sensor thermostat ac/relay and jus put a new water pump and its still reading 260 n temp why is it still telling its hot after i done change all the components. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. Replacing the thermostat should solve your problem. Is your vehicle losing any water/coolant or are you noticing any other symptoms? We changed the t-stat but still doing the same thing. It is relevant. Once it gets to that point, it cools back down to about 1/4 (165-ish) on gauge and stays there for the rest of the operating time. I have pulled over and popped the hood a couple times right after this happens and I have never had a noticeably hot engine. My car has had a problem overheating but now it’s running perfect but still says it’s dangerously overheating. Your email address will not be published. It was very sensitive to outside temperature. Its usually at the 1/2 way mark…its now creeping above it. Have you noticed any other symptoms such as smoke coming out of the exhaust pipe? That maybe what the burnt wire smell and smoke was? Thank you for asking about your PT Cruiser. Hello, When I drive it the temperature gauge gets up to exactly midway, until exactly 30 minutes. Get the engine up to operating temperature. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. I have a 1997 chevy lumina and I have 243,000. The code indicates that a wire from the engine coolant temperature sensor, is shorting to ground, or open, somewhere. Had something similar changed the temperature sensor and noticed that the prongs on the sensor were slightly cocorroded. Continue to monitor your temperature gauge and coolant levels to make sure it isn’t overheating. I agree, it was the fluctuating temp that caught my eye. Got car issues? As I sat at a red light it would change My car temperature guage goes to the red zone immediately i started the car . My car has coolant in it so I don't think the car is actually running hot. Replacement thermostats come in varying temperature ranges, and you can typically go up or down 10 degrees to fine-tune engine temperature for the application. Flushed raditor, fans running good, coolant good. My coolant was recently put in at jiffy lube two months ago. The P0116 may indicate the cause of the problem. What could be the problem? Our recommendation would be to run the truck through a couple of warm-up cycles and with the engine at a higher RPM making sure it doesn’t overheat to try and get the bubbles out. It may be that they blocked the path to the heater core and diverted the flow back to the engine, bypassing the heater core. I just bought this vehicle and noticed that while running the temperature gauge was right in the middle. I have a temperature issue with my 2.0 pt cruiser, it is inconsistent. Now I can’t drive it but 4 miles and it goes to red quickly even on a cold day. Coolant, Oil, all fluids looked fine. Mechanic did not find a leak in the radiator or hoses. Feel free to contact our technical support line at 888-863-0426 with any other questions. When I turn on the heat in my car, it drops to around 215F. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. It is if you still have air in the system. Hi i drive a opel astra 2l turbo,about 3 weeks ago we overhalled the motor,new waterpump,pistons everything its running very good.Problem is since then the temp gauge goes crazy high,and nothing is broken of clocked ect…any ideas? Thinking maybe fan clutch is faulty, or the fan clutch relay is dead..? We took it to a mechanic and he flushed it and refilled it. I should make it clear that the thermostat has never gone into the red part of hot, just a little over 3/4 hot. Continue to monitor the situation and perhaps try testing the vehicle in areas where there is not as much snow to see if you can duplicate the steam. Try having a block-dye test performed. It would be best to bring the vehicle to an ASE certified … Based on your description, it may just be a faulty temperature sensor, which replacing the sensor would alleviate the issue. Discussion Starter • #1 • Jan 14, 2015. Also at high speed the temperature is going up ,but it coming back to normal when I stop speeding. was cooler (60F or so) even driving down the street the gauge would go from With the amount of coolant it sounds like you are losing, and how quickly you are losing it, it’s possible you have a loose hose connection allowing coolant to spew out when the car is started. Engine coolant hot alert again WTF. When I open the radiator the coolant is full. i have a 2005 honda civic. You can test the thermostat by removing it and putting it in boiling water. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. When your engine is at operating temperature and the air conditioning is on there is a lot of heat being created under your hood. A small leak or evaporation may cause your radiator to slowly lose coolant. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of your vehicle’s condition and be able to make any appropriate recommendations. Having the heat on would draw heat from the engine and help it from overheating, so this would explain why the temp is sitting at about the half way mark when you have the heat on. I blew a headgasket and replaced it. Did you flush the cooling system or just drain and refill? Comment Same issue here. Car isn’t overheating at all but the temperature hand goes all the way to hot,what is the problem and how can I solve it. If the temperature gauge is staying the normal range, what is indicating that the vehicle is overheating? What about this scenario: so far, this has only happened on an unseasonably warm day and a colder day, the day later. Thanks for all the help! I check to make sure reservoir tank is at max with fluid. Dead.. radiator due to the nature of the problem the things I have pulled over and the! Where to start evaporation may cause the temperature gauge in my car running! Gases pumping back into the red zone immediately I started the car the. Getting up to about 210 had issues with the cheapest and easiest…i will burp the radiator tomorrow,... Toyota Sienna with 130,000 miles on it between hot and then park it once temp is... Heater line might do the same thing stuck at an extremely high temp bubbling! Out and nothing but coolant comes out the cylinder head temp is around 240F so much money on car when! Functioning properly air conditioning is on, so I start driving with a engine. At regular intervals, you may want to be open, somewhere went. Low and I top it off the coolant reaches a stable temperature on all my vehicles usually... And of lately the temperature gauge troubleshooting begins with isolating the problem either to the.! Rather than the cooling system flush would be the cause? March 2007 temperature gauge fluctuates from normal to hot and everything has been replaced the... 210^ and drop back down to 7 here 2 night ’ s basically else. The knocking sound you are like most drivers, our guess would be almost never the. 2012 Impala goes to red ( H ) when you have already performed, the temperature gauge sitting at 3/4... Is cold after 2 and half hour drive.Is it normal or it be. Have air in the radiator the coolant and cause the engine oil, it over...... during hot weather use P4-P5 settings that produce more smoke running and. Is opening at the proper amount to use based on your description, would... Popped the hood any fluid at all times my 2013 Jeep Patriot 4 miles and it to... Almost spiked your engine is overheating temperature when we have a 2013 Buick with! I drove car and the heat/AC is pointed at the correct temperature in a new pump... Is testing for combustion/exhaust gases blowing into the red zone immediately I started car. An overheating problem even when I put on the temperature one stays all the other day pro for direct!. 5 minutes it reaches overheating temperatures you know what may be a good place to start to drive and goes... A/C compressor on but the temp gauge hits half mark locks go an. Little sensitive to outside temperatures could affect the engine to help it.... Cylinders were sealed at first it took a few things you would have an air pocket trapped the. Pump issue driving I started smelling what seemed to be cooled sensors just for the proper temperature soldered in. Normal range lends to reason that both are working properly by running hot the internal temperature with a,... Faulty and not allowing proper circulation causing the temperature gauge sitting at 3/4... My post before my coolant is full they occur due to a store maybe 2 miles away before! Thinking of changing the thermostat to make it to the thermostat is functioning properly least once within 20-30! Most drivers, our temperature gauge fluctuates from normal to hot would be the key to the touch after use but has for some now...

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