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What does you mean when check engine light goes on and then goes off?
Wiki User
∙ 11y ago
When I start the vehicle it will come on and stay on. Sometimes when I fillup with fuel it will go out and stay out for a day or two and come back on particularly when the fuel level reaches 3/4 tank or below. It will be on when I run the car for an hour or two and when I shut it down for a few minutes and restart it will be out until I stop and when I restart it will be on again.
Answer: You will need to have a scanner hooked up and the codes read to determine exactly what is going on. It sounds like there may be a problem with the vapor recovery system on the fuel tank, but this is just a guess. A scanner will determine exactly what is going on.
Wiki User
∙ 11y ago
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