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This depends on the vehicle. If the thermostat is stuck open the engine won't get to the proper operating temperature which could trigger the MIL (check engine light).
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∙ 12y ago
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Will installing a thermostat backwards make problems with check engine light?
It could cause the check engine light to come on with a code concerning cooling system/thermostat performance.It could cause the check engine light to come on with a code concerning cooling system/thermostat performance.
Would a bad thermostat cause check engine light to come on in a 2007 crown vic?
A defective thermostat can cause the engine to overheat. It can also cause the engine to not reach full operating temperature if the thermostat is stuck open. It is possible this could set the check engine light.
Can taking the thermostat out of your truck make engine light come on?
Yes, on some vehicles it can.
What does it mean if engine light come on and had it checked and code read not at riding temp?
It means that the engine is not warming up properly, possible thermostat failure.
What would cause the Check Engine light to come on and the Temp gage to never reach normal range?
I would suspect the thermostat is stuck open. Replace the thermostat.
Why does the engine warning light come on in your vauxhall astra with a simultaneous increase in engine temperature followed by a steep drop?
It sounds like the thermostat is opening up late causing the engine to almost overheat before it opens. Replace the thermostat.
Why does your thermostat light come on and what can you check on 1998 GMC Sierra Chilton truck?
What is a thermostat light?
Can you run your 2002 4.7 dodge ram 1500 without an thermostat?
It is not recommended, the check engine light will come on, and in the long run the engine will sludge up.
1999 ford escort will thermostat cause service engine soon light to come on?
yes sometimes cause if it fails open the temp sensor will kick the light on tellin its too cold or opposite if the thermostat fails closed
Can a check engine light indicate a bad thermostat?
Many vehicles will trigger a check engine code if the engine never reaches its designated operating temperature (Such as if a thermostat was stuck open). However, there are hundreds of other reasons a check engine light can come on. Putting in a thermostat solely because the check engine light came on is a very bad idea. Any time that light comes on you should have the vehicle scanned by a trained proffessional (The guy at Napa doesn't count). A good service technician can use the information given by the engine computer to determine what is wrong with the vehicle.
Why would the service engine light come on on a 94 camaro V6 and be hard to start when cold after replacing the thermostat?
have vehicle scanned to determine the problem
Can a bad thermostat in your car cause your check engine transmission light to come on?
Yes on most 1996 and later vehicles, the computer will set a code if the engine is running at too cold a temp.
