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My 94 LT1 70,000 miles starting poping like a backfire from under hood on full throttle. Besides that runs and idols perfect. Not sure where to start looking. Thanks for any help!
I have the same year mine did this and got worse fast replaced the o2 sensors is what I thought but while I was under it I did the knock sensors at the same time runs great now
I agree with the last two posts I rember now I checked my fuel pressure first.......I got bosh o2 and ome knocks off ebay and a afternoon changeing and flushing the hardest part was getting under the car and out lol if they are original money well spent
I agree with the last two posts I rember now I checked my fuel pressure first.......I got bosh o2 and ome knocks off ebay and a afternoon changeing and flushing the hardest part was getting under the car and out lol if they are original money well spent
Fuel filter is new. That was a job! Taking it to a friends shop. Read all my books. Lots of reasons listed for back fire. I did check the spark plug wires OK. Checked air pump OK. Checked pcv OK. Exhaust coming out of both mufflers ( new) OK. Car runs perfect beside that issue. Thanks for all the comments. I try not to get under it when possible
