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Trouble with my holly carburator

Tiny
GREGORNOT
  • MEMBER
  • 1979 DODGE VAN
  • 15,000 MILES
During acceleration our van backfires through the carburetor. I have had nothing but troubles with this vehicle since I got it. The choke keeps fully opening up. Which makes it difficult to start or keep running most of the time.
Tuesday, May 21st, 2013 AT 1:43 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If this is a holley two barrel, have the choke heater bent a little bit away from the spring. Check for a bent push rod for the backfiring. Short out each cylinder by pulling off a wire one at a time to see which cylinder it is.
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Wednesday, May 22nd, 2013 AT 7:58 AM

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