Mechanics

CADILLAC STS ENGINE PROBLEM

1992 Cadillac STS • 120,000 miles

I washed my engine on a 1992 Cadillac seville sts. Now it has a slite miss under acceleration. I have replaced spark plugs, wires, distributor cap and rotor button but the miss is still there. The check engine light came on immediately after but the next time I started it, it was not on and hasn't been on since. What should I do next to correct the miss under acceleration?
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November 16, 2012.




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