Cloud of smoke after sitting 2 days

[LeakySeals]

06 Escalade AWD 6.0L 140k. Recently experiencing a blue/brown cloud of smoke at startup. Only happens after sitting for a couple of days. Burns no oil, no topoffs during a 7k OLM OCI. Smoke smells like a clutch or brakes. Something burning. Asbestos like.

Any idea what could cause that?

 

[Nick1994]

Mouse best in the exhaust.

 

[4WD]

Clue in your title ? .. seen that from valve seals

 

[LeakySeals]

Originally Posted By: 4WD
Clue in your title ? .. seen that from valve seals

Yeah I had that problem with an old Camry. But it consumed oil, it was obvious. This engine doesn't consume any oil. Tailpipe is spotless. No soot. And it doesnt smell like carbon. Smells like a slipping clutch lol

 

[LeakySeals]

There is a mouse problem around the house... but nothing flew out lol

 

[spasm3]

Could an injector be leaking fuel into the cylinder causing it to be rich on start up?

 

[4WD]

A couple drops in the cylinders can make smoke - I have a low hour outboard - tight, tight, engine.
But forget to tilt the prop up (inline pistons angled in wrong direction) and it smokes plenty when you crank ...

 

[Tomioka]

Oil in the intake manifold running down into the cylinders.

 

[Doog]

My 2006 6.0L was a junker by 40,000 miles......get rid of it while you can.

 

[Torrid]

My Jag did this once, but I drove it extremely hard just before parking it and my best guess was leaking injectors. It hasn't happened since.

 

[Nick1994]

Originally Posted By: LeakySeals
There is a mouse problem around the house... but nothing flew out lol
Doesn't always fly out. There's chambers in the muffler they can pack up.