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Yes, a defective fuel cap will make the check engine light come on. It will alert the car that its not getting good gas mileage.

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11y ago

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What would cause the check engine light to stay on in your 1996 Nissan Altima GXE?

Some of the factors that caused the "check engine" light are: defective oxygen sensors defective air mass meter emmission systems Hope this will help


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 a defective gas cap cause fuel gauge to read wrong fuel level?

No, but a defective fuel cap can set the "check engine" light to come on.


Will a fuel filter turn your check engine light on?

A clogged or defective fuel filter will very likely cause a check engine light. If it is suspected, it should be replaced.


Will a defective starter solenoid cause your check engine light to stay on?

No. Use a code scanner to find out why the check engine light is on. You can borrow, rent or buy a code scanner from most auto parts retailers.


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

Yes it can.


What would cause a car to stall while stopped?

Bad gas, water in fuel, Low fuel pump pressure, dirty air flow sensor screen, one or more engine sensors defective and/or out of normal reporting ranges, engine control computer defective. Low battery and alternator output. The "check engine light"should have come on to give you a hint.


Can low gas cause a check engine LIGHT?

No, low gas cannot cause a Check Engine light to turn on. There would have to be a problem within the engine or the engine wiring for that light to come on.


What would cause the Check engine light to came on after smog check?

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.


What would cause check engine light and code p0304?

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How do you tell if the computer is bad in a 1996 mercury villager?

IF the computer was really defective, either the car would not run, or there would be a check engine light due to a fault code.


Would a faulty gas cap cause rough idle check engine light on and ticking on acceleration?

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