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Subject:Back-fire
From:John Schaper
Date:Tue, 8 May 2001 07:38:30 -0700

In my 85 GL on Sunday, I was driving down from Sonora Pass when I experience
the engine backfiring going downhill, rpm's at 4,000, coasting.  I have a
small leak in my exhause, upstream from the O2 sensor.  Is this a timing
thing?

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