1997 Dodge Ram Miss fire on #7 & #8

1997 DODGE RAM
85,000 MILES • V8 • 4WD • AUTOMATIC
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BRIANFRAME
  • MEMBER
  • 3 POSTS
I keep fouling #7 & #8 plugs, then the truck shakes when I try to hold a steady speed like 45-55mph, let up and its fine give it more gas and its fine. What I have done so far is put a used motor in, still get the same result. Complete tune-up no change. The only parts that are the same between the two motors is the computer, distrubiter and the injectors. Any ideas?
Jan 14, 2008 at 9:43 AM
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BLACKOP555
  • CAR REPAIR CONTRIBUTOR
  • 10,386 POSTS
switch your fuel injectors of cylinder 7 and 8 with the injectors for 1 and 2 if the problem moves with them then you know you have bad fuel injectors.

also check the distributor cap for carbon fouled points, also check your spark plugs and wires.
Jan 14, 2008 at 8:15 PM
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