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If fuel is in the oil then you may have a head gasket or a piston sleeve is crack to rule this do a compression test and check for cracks and leaks on the outside of the car or truck.

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โˆ™ 2007-08-22 06:26:15
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Q: Would the thermostat or O2 sensor cause an engine to run rich if there is fuel in the oil?
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Would a thermostat cause an o2 sensor to fail?

Not directly.

Why is engine overheating with new thermostat and engine temp sensor but when you take out new thermostat it does not overheat?

Did you make sure that you are putting the themostat in correctly? If you put it in backwardthis can sometimes cause this problem.

Could the temp coolant sensor cause the truck to run cold?

The coolant sensor moniters the coolant temperature. A faulty thermostat could cause the engine to run cool.

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.

Would a knock sensor cause the engine to run rich?

No it will not.

What will cause an engine to push antifreeze out of the resevore?

the most common cause would be a stuck closed thermostat.

Are there sensors that would cause a 1997 dodge stratus to not start?

Yes, just about any sensor on the engine could cause a no start.Yes, just about any sensor on the engine could cause a no start.

Can a bad 02 sensor cause your engine to make a noise?

Not likely. A bad O2 sensor would illuminate the check engine light and the engine performance would suffer.

What would cause the engine not to reach normal operating temperature?

Answerno thermostat but only temporarily.A thermostat functions to regulate the flow of water between the engine and radiator.On an average outside temperature day (75 degrees), "no thermostat" would result in (1) the engine not reaching operating temperature in the normal engine warm up cycle time and (2) much later in the cycle the engine would overheat caused by the water not remaining in the radiator long enough to cool down. More extreme outside temperatures would impact the previous results.No thermostat or a defective thermostat that is stuck open. Also could be a deffective coolant temprature sensor. Or air bubble aroune the sensor on some cars.

What would cause the temp gauge to not work on a 93 Ford Taurus Station Wagon?

The first thing that I would check is the wiring and the temp sensor @ the engine. Sorry but I do not know where the sensor is located on the engine. Usually they are not too hard to locate. i would replace temperature sender usual located near front of engine near thermostat housing

What could cause the cooling fan to not work after the thermostat was replaced in a 1992 Ford Escort?

There is an engine temperature sensor that operates the cooling fan.

Would water flood cause engine sensor failure?

Driving through flood water would cause the ignition to fail and stall the engine.

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