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Chevrolet Blazer Repair Question


Topics covered: Backfire, Exhaust, Mechanic.
Mileage: No information provided.

Asked on July 6, 2007

Backfire on decel

'82 Chevy K-blazer 350cid v8 4speed manual trans.
100k miles
Mods: headers/duel exhaust/MSD ignition/edelbrock intake-nonEGR
Problem: idles fine, accels fine, backfire when decel in gear
Avatar Asked by 82blzrman

Answer

Replied on July 6, 2007

2 things will cuase it. 1.) Vacuum or mechanical advance not working.
2.) If you still have converters with air tubes and check valve on the manifild, one of the check valvles is NG, air tube has holes...

Tiny Answered by merlin2021 (expert)
18,107 answers provided