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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.

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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.


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 would a 90 Lexus LS400 overheat rapidly when a new thermostat was installed and the engine coolant is full what could be the cause of this problem?

check the water pump


Would a faulty thermostat cause the engine to shut down then hours later the vehicle will restart?

doubt that a t-stat would cause a car to shut down and restart when cold check for an ignition module proublem


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Why would both fans on a 1997 Ford Taurus run all the time and would this cause no heat?

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Why would you have no heat in your 98 Chevy Blazer?

Check the engine thermostat. Its probably stuck open.


Would a fuse cause the check engine light to come on in a dodge neon?

A fuse does not cause the check engine light to come on. Modern cars have a bunch of little sensors. Each one can set off the check engine light. You can hook your car up to a computer and check it out to find out which one it is. You can even hook up a wire and a little bulb and count the number of flashes. You can check it out. The number of flashes can tell you what is wrong. For example, on some chevrolets 015 is a sensor right above the thermostat. If that one goes off, it might be time to change the thermostat.


Would an engine sputter cause the check engine light to come on?

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What would cause the temperature of a 2000 Dodge Dakota 4-cylinder engine to fluctuating wildly between normal and hot?

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Does the removal of the thermostat cause the vehicle to shudder when idling?

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