Changed the oil and all at once check engine light is on and off

[JOHNDEEREGN]

WTF

Changed engine oil, transmission and rear end oil last weekend and now once in a while the service engine soon light comes on and off

Coincidence or WTF

My mechanic is putting it on his GM scan tool Thursday

 

[Turbo T/A 1543]

Shouldn't this be a poll? If so, I vote coincidence!

 

[83ttypecooled]

Hi,
You never know. I rebuilt my turbo, and the light came on sporadically.It was setting a rich code 45. Block learn and integrator looked good, but the ecm didn't like something or other. The problem fixed itself, so I never got into it further.
Dale

 

[Metal]

Usually whenever mine went on it was time for a new OS sensor...
They didn't seem to like the 110 leded gas I ran in the summertime.

 

[JOHNDEEREGN]

Well

Im running 104UL

Guess well find out for sure Thursday

 

[Gary Wells]

You drank the oil and added Crown and Coke to the crankcase?
J/K, Ty
Evidently the sensors don't like Crown & coke.

 

[JOHNDEEREGN]

Actually

We had to unplug an "oil sender" connection or something like that to get the filter off.

99% of me says the problem lies there,,,,I know its nothing major.

Bout time you crawled out from under your rock GW