Jump to content

Recommended Posts

I am wondering if anyone has any thoughts for me . I have a 2005 Silverado with a 5.3L with a garrett 90mm turbo.

I bought the truck about a month ago on ebay from Arizona. drove home fine and has worked perfect up til the past week. all of the sudden I started getting oil out through the pcv line on LH valve cover and higher than normal oil psi. so I thought that maybe it just needed another oil change ( 2600 miles on oil). so last sunday I went to Sears and had a synthetic oil change done and now the engine is smoking like crazy. the oil was being pressurized by compressor on the Magnum Turbo that was on it and eventually destroyed seals in turbo. thought that it may have been just a bad turbo so I installed a new Garrett 90mm turbo today which is running 8psi boost. the turbo works fine but still getting oil in combustion chamber and still coming out of pcv line and drenching engine bay. any suggestions?

Link to comment
Share on other sites

I do a leak down and compression test to see if you have worn piston rings.

I'd start there first, that's what I do when I deal with excessive blow-by/oil consumption issues on engines. That's usually the case, I'd did run into a bad headgasaket once but it was not a GM engine, but with the LS series of engines, I don't think a headgasket is your issue at this time.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.