Engine crossfires upon starting sometimes, would the pressure break the top of the air box? What is next dtep before replacing air box?
May 21, 2020 at 12:47 AM
2000 jimmy 4.3 litre no turbo
2000 GMC JIMMY
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Good morning,
I assume you mean backfiring.
This happens when a spark occurs when it should not. It could be a distributor cap, ignition wire, or lean or not enough fuel.
Is the check engine light on?
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
I attached a guide for you to read for this issue.
https://www.2carpros.com/articles/engine-backfires-while-running
Let me know if you have any other questions.
Roy
I assume you mean backfiring.
This happens when a spark occurs when it should not. It could be a distributor cap, ignition wire, or lean or not enough fuel.
Is the check engine light on?
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
I attached a guide for you to read for this issue.
https://www.2carpros.com/articles/engine-backfires-while-running
Let me know if you have any other questions.
Roy
Jun 2, 2020 at 4:08 AM
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