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View All Answers for My 1990 Cadillac isn't running too well. The engi

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Submitted 739 days ago...

Piebald732

Piebald732

New User (2)

My 1990 Cadillac isn't running too well. The engine idles rough.

I just changed the spark plugs and it ran great. Then I put some fuel stabilizer in the gas tank because I thought there might be some water in the fuel. The car had been sitting for a couple of years prior to my acquiring it. After about a week, it's idling rough, and the acceleration is poor. It's like the catalytic converter may be plugged. It ran fine before I put the additive in the fuel. Do you suppose that's what plugged it? Will it clear up?

 
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Submitted 686 days ago...

flapjacklips

flapjacklips

Beginner (32)

Champion spark plugs are the better choice. Change them again and get a inline fuel filter

 

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