Having problems with your 1999 Cadillac DeVille ?
SMOKES WHEN STARTING UP SOMETIMES - 1999 Cadillac DeVille
If it is blue smoke, it is oil burning. If it only smokes after sitting, then it is a leaking valve guide(s). If it smokes randomly while running, you have leaking oil control piston ring(s). If the smoke is very heavy and white, that is coolant and your head gasket is the problem.
Repair Help & Product Troubleshooting for 1999 Cadillac DeVille
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