Smoke from the oil drain plug??

**Neil** · 06-08-2009, 11:12 AM

My daughtor's car (2001 Plymouth Neon) has a low oil lpressure light at low RPMs. I decided to add a heavier weight oil this weekend to see if that would make it last at least a little longer. When I was draining the oil, I noticed that white smoke was coming out of the drain plug hole. The engine was cold - it hadn't been started in a day, and all I did was start it and drive it up on ramps. Any ideas on what would cause that?

**jambofla** · 06-08-2009, 11:14 AM

Originally Posted by Neil

My daughtor's car (2001 Plymouth Neon) has a low oil lpressure light at low RPMs. I decided to add a heavier weight oil this weekend to see if that would make it last at least a little longer. When I was draining the oil, I noticed that white smoke was coming out of the drain plug hole. The engine was cold - it hadn't been started in a day, and all I did was start it and drive it up on ramps. Any ideas on what would cause that?

Blow by?

**astyles** · 06-08-2009, 01:25 PM

Originally Posted by jambofla

Blow by?

+1

**Neil** · 06-08-2009, 01:29 PM

Is that caused by bad rings? It's sounding like this engine needs a rebuild.

**pajeff02** · 06-08-2009, 01:38 PM

I don't think it would have smoke coming out a day after it had been shut off. Any blowby should have dissipated in that time frame. A quick compression check and cylinder leak down will let you know what's going on.

**Sarge** · 06-08-2009, 02:20 PM

Ring packs are probably frozen allowing blow by.
Plugged PCV and/or carbon/varnish build up around the ring packs are the two normal suspects.
I would AutoRX it and make damn sure her PCV is fully operational.
http://www.auto-rx.com/
Check the PCV and make sure it is fully operational. Crankcase pressure must be relieved somewhere or the rings will not seal properly.