1986 930 with stumble/backfire

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07-26-2014 | 04:13 PM

savantauto

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1986 930 with stumble/backfire

my 1986 911 turbo has an annoying stumble and sometimes backfires between 2000 and 3000 rpm. below 2000 and over 3000 car drives beautifully. any suggestions? very frustrated.

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07-28-2014 | 09:16 PM

speednme

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From: New Jersey

Check for vacuum leaks...

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07-29-2014 | 08:43 AM

savantauto

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Thanks for the reply.

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