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Old 04-02-2004, 05:31 AM
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Tony Aprile Tony Aprile is offline
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Join Date: Dec 2002
Location: Long Island, NY
Cobra Make, Engine: SPF #1358 Silver/Black stripes 466 2X4
Posts: 780
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Default back fire on deceleration

Cowtown

I recently experienced this "LEAN"condition of popping or backfiring out of the left side pipe on deceleration and was given three places to look.

Intake manifold to cylinder head gasket
Header to cylinder head gasket
Sidepipe to header flange gasket

Well im my case the intake manifold gasket had disintergrated and moved out of shape to cause a vacuum leak at #5 cylinder. Replaced the intake gaskets and that was it.

Tony
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