Backfiring on deceleration
October 29th, 2016, 7:09 PM
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Backfiring on deceleration
I have an 07 Suburan that backfires on deceleration. Usually when I'm going down a hill or if I have to take my foot off the gas pedal. I've noticed when the deceleration occurs my oil pressure gauge will go up. I've replaced my spark plus and O2 sensors. The backfire will decrease or stop after I've driven a few miles. What else will cause this to happen?
