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98 vortec backfiring
I have a 98 chevy 3500 with the 3.7 vortec and as it gets colder here in Nevada when we try to start it, it will run super rough and sometimes backfires in the cad. If you slowly add throttle till you can get it up to 2k rpm and hold it there for a while, 2 minutes, it will then idle down and...- Keith Brower
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- Replies: 15
- Forum: Engine Performance + Maintenance
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