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1993 GMC Safari
1993 gmc van backfires on start up run poor till warm up
Monday, February 21st, 2011 AT 2:11 PM
Do you have a check engine light? If so get codes read and post to this thread.
Monday, February 21st, 2011 AT 2:14 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
Monday, February 21st, 2011 AT 2:30 PM
Backfire is a timing issue, either dist. Or a valve hanging open.
Monday, February 21st, 2011 AT 6:20 PM
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