92 vortec running rich and has blueish smoke

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Sep 28, 2008 | 02:40 PM

dbinnc

Thread Starter

Joined: Sep 2008

Posts: 3

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92 vortec running rich and has blueish smoke

I am picking up this 92 blazer in a few days and wondering what I should start looking at first in regards to the running rich and blueish smoke? I am not a mechanic, but I can get by.

Thanks,
D

Sep 28, 2008 | 03:09 PM

myol blue4x4

Junior Member

Joined: May 2007

Posts: 479

From: War In (Warren) OH

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RE: 92 vortec running rich and has blueish smoke

I believe the blueish smoke is a result of burning oil.

Sep 28, 2008 | 03:17 PM

swartlkk

Administrator

Joined: May 2005

Posts: 41,334

From: Waterloo, NY

RE: 92 vortec running rich and has blueish smoke

Yep, probably burning oil from leaking valve seals.

The running rich could be a result of a bad O2 sensor, fouled by soot from the oil contamination.