HELP! Car Backfiring at 40-45mph
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Junior Member
Joined: Apr 2003
Posts: 58
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From: Blacksburg, VA
Car: 1987 Trans-Am
Engine: 350 TPI
Transmission: 700R4
HELP! Car Backfiring at 40-45mph
I am having problems with my car backfiring at 40-45 in 3rd gear. It is running fine up until then but when it backfires (LOUD explosion w/ black smoke) i lose all acceleration/power and just coast. Idle is fine. About to check/replace spark plugs. Any tips greatly appreciated. 305 TPI w/ 700r4
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Linson
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Aug 21, 2015 02:12 PM
