Replaced ECM ANd now white smoke pours out of exhaust?

Asked by AinNC Nov 02, 2011 at 06:25 PM about the 2001 Chrysler Town & Country LXi LWB FWD

Question type: Maintenance & Repair

I have had this van for about 4 years. In the four years I have had to replace the TCM, then a new engine, and now a new PCM. The van ran fine before I replaced the ECM. It hasn't been driven much due to lack if current state inspection. Is this something common or should I be concerned?

2 Answers

83,745

Sounds like either some carbon build-up burning off of the valves, or another issue. Does the smoke smell sweet at all, like antifreeze? Could be a head gasket. Could also be some stuck valve stem seals or something else allowing oil down into the cylinders. This is common when a vehicle has sat for awhile. Typically, a rich fuel mixture will burn black, not white.

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