Mechanics

CAR OCCASIONALLY RUNS ROUGH AT START-UP

2000 Cadillac STS • 135,000 miles

Almost like misfiring. Smooths out after @ 5 minutes. What may be the cause? Have replaced coil packs, plugs, plug connectors(wires), and cam sensor to date.
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Macs
February 16, 2012.




Clean out the idle air control valve and see what happens-start here

Tiny
Rasmataz
Feb 16, 2012.


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