What is your question?
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What is your question?
gas cap can it cause emissions problems. My check engine came on and I was told emissions problems. Ticking sound. what does that mean?
1 Reply
The "check engine light" can be triggered for literally hundreds of reasons (emissions problems are about 30-50 of them) and a loose gas cap is only one of them. The codes need to be read while the light is on. And these codes just give a good place to start diagnostics.