What causes backfiring

Haskins1111 · 05-11-08, 11:19 AM

I have a 85 accord for a commuter car and it backfires when i shift. It is not to loud and doesnt happen to much after it has warmed up. Just wondering if it is an easy fix. Vehicle info- carb., 5 speed, new plugs and wires, and the backfire is from the tailpipe.

Gumby · 05-11-08, 11:34 AM

Often an exhaust leak can cause a backfire like the one you describe. When your car is cold it's getting unburnt fuel into the exhaust when you shut your throttle off quickly from high RPM, the leak provides oxygen.

05-11-08, 11:19 AM	#1
Haskins1111 IH8MUD Regular Join Date: Jul 2005 Location: Bakersfield, Ca Posts: 261	What causes backfiring I have a 85 accord for a commuter car and it backfires when i shift. It is not to loud and doesnt happen to much after it has warmed up. Just wondering if it is an easy fix. Vehicle info- carb., 5 speed, new plugs and wires, and the backfire is from the tailpipe. __________________ 1996 FZJ80 Black- 139,000 miles, locked, phh mod, spare tire mod, blue fan clutch mod Last edited by Haskins1111; 05-11-08 at 11:35 AM.

05-11-08, 11:34 AM	#2
Gumby Former Wheeler Join Date: Dec 2002 Location: Knee deep in hookers and gin TLCA# 5658 Posts: 4,968	Often an exhaust leak can cause a backfire like the one you describe. When your car is cold it's getting unburnt fuel into the exhaust when you shut your throttle off quickly from high RPM, the leak provides oxygen. __________________ War Pig and Cerdito "Don't you know, Stan, it's *always* between a Giant Douche and a Turd Sandwich."

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