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My 85 Firebird feels like its cutting out and lacking power

Tiny
FIREMAT
  • MEMBER
  • 1985 PONTIAC FIREBIRD
My car is a 1985 Pontiac Firebird, 5.0 liter v8, about 350 000 kms, Automatic tranny, Lately with my car I have been noticing the motor has been cutting out, also whenever I am in overdrive (or in any other gear, but more noticeable with higher speeds) the car is tugging and giving some kinda yanks, its not the tranny, cause I can hear the engine cutting out. So I thought it was the carb, got that rebuilt, didn't help. Then I thought maybe the fire was "jumping" so I changed my plugs, spark plug wires, distributor cap, and rotor, the only things I didn't change was the distributor itself and the coil, thinking it probably wouldn't be them. My question is what do you think the problem could be causing this cutting out and tugging?
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Friday, October 5th, 2007 AT 9:42 AM

1 Reply

Tiny
IMNOTLOKIN
  • MEMBER
  • 11 POSTS
When I worked for a local Pontiac dealership in the early 80's, we had a bulletin on the catalytic converter balls needed to be changed. We stuffed a rag in the tailpipe and increased the rpm's, and watched for a glowing converter. After changing the balls, all power came back. We done a lot at the dealer long ago, but try it? Hope you find the answer.
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Wednesday, November 14th, 2007 AT 7:56 PM

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