Car occasionally runs rough at start-up

Tiny
MACS
  • 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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Thursday, February 16th, 2012 AT 11:00 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER

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

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Thursday, February 16th, 2012 AT 11:07 PM

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