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When outside temp is above 80 degrees, engine will not start after running for a while. maybe vapor lock? After engine cools, 15-20 minutes engine starts.

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Check the Engine Coolant Temperature sensor. If it is faulty or disconnected, it will tell the engine computer that the engine is still fully cold even when it is actually warm. The computer will then schedule too much fuel for a warm start--flooding the engine. You wind up waiting for the excess fuel to evaporate and the engine to cool down some and "match" the faulty sensor before it will start.

Another possibility is a leaking fuel injector. Again, a warm engine with too much fuel dripping from an injector will flood.

Posted on Mar 11, 2011

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Vapor locking

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Hope this helps! Don't forget to rate.


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