Hello,
It sounds like your engine might be backfiring.
An engine will backfire due to having unburnt fuel getting ignited inside the intake manifold. It can also backfire out of the exhaust.
When it backfires inside the intake manifold it can blow out gaskets and even damage the intake.
You can have backfire due to the spark plugs not igniting the fuel properly or the injectors spraying too much fuel that the plugs unable to ignite.
It can also happen due to vacuum leak.
Here is a helpful article on backfire, it also covers the remedies:
https://www.2carpros.com/articles/engine-backfires-while-running
Check the spark plugs for wear and set the gap. The gap should be 0.042-0.046 in.
Please let me know of any questions.
Thank you.
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Sunday, September 26th, 2021 AT 6:00 PM