Backfires

Tiny
PAMWALT1
  • MEMBER
  • 1993 GMC SAFARI
  • 6 CYL
  • 200,000 MILES
1993 gmc van backfires on start up run poor till warm up
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have the same problem?
Yes
No
Monday, February 21st, 2011 AT 2:11 PM

3 Replies

Tiny
MMPRINCE4000
  • EXPERT
Do you have a check engine light? If so get codes read and post to this thread.
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Monday, February 21st, 2011 AT 2:14 PM
Tiny
PAMWALT1
  • MEMBER
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
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Monday, February 21st, 2011 AT 2:30 PM
Tiny
MMPRINCE4000
  • EXPERT
Backfire is a timing issue, either dist. Or a valve hanging open.
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Monday, February 21st, 2011 AT 6:20 PM

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