1979 DODGE

  • Tiny
  • joecool21
  • 1979 Dodge

Engine problem
1979 Other Dodge Models V8 Two Wheel Drive Automatic 132000 miles

I'm running out of options for this Aspen. I have been having backfire issues. I have changed the plugs, wires, distributor cap, cleaned the egr valve, adjusted the carb (which is a 2 barrel holley), and replaced the fuel pump.
The backfiring doesn't really start to happen till I get up around 50 mph. It also backfires when you let off the gas. Any help would be greatly appreciated. Also the spark com computer is currently mounted on the air cleaner and not where it is in the picture.


Do you
have the same problem?
Monday, January 14th, 2008 AT 10:37 PM

1 Reply

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

The most common cause of a backfire is a vacuum leak. Have you checked everything for that problem? Also, Is it backfiring from the exhaust or the intake? Does it change under different accelerations?

Was this
Saturday, March 14th, 2009 AT 6:39 PM

Please login or register to post a reply.

Similar Questions