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Old 07-26-2020, 08:46 AM   #3
Licensed to kill
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Join Date: Aug 2016
Location: Alberta
Posts: 860
Default Re: Backfire in overrun mode (load change)

My car had a persistent backfire when decelerating. I increased the fuel with the GAV but that helped little. Turned out the valve guides were shot. Put new valves and guides (and ground the valves and seats of course) and no more backfire.
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