BACKFIRES

1993 GMC Safari

Tiny

pamwalt1

February, 21, 2011 AT 2:11 PM

1993 gmc van backfires on start up run poor till warm up

FOUND 1189 RELATED QUESTIONS

3 Answers

Tiny

mmprince4000

February, 21, 2011 AT 2:14 PM

Do you have a check engine light? If so get codes read and post to this thread.

Tiny

pamwalt1

February, 21, 2011 AT 2:30 PM

No the check engine light not on had it on computer showed nothing thought water in gas added dry gas ran good 3day filled new gas stsrted to backfire again

Tiny

mmprince4000

February, 21, 2011 AT 6:20 PM

Backfire is a timing issue, either dist. Or a valve hanging open.

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