I'm have been having some oil consumption problems with my girlfriends saab 9-7x which is basically a tbss with a 5.3 instead of 6.0. It does have that displacement on demand or active fuel management which I think is the culprit. It's burning at least 2 qts per oil change.
I have been doing some reading and a ton of trailblazer, saab, and other 5.3 guys are having the same issue.
Some say replace drivers side valve cover with Pcv. Some say it's the AFM valve in the oil pan spraying on the pistons and rings. Some say tune out the AFM completely.
I am very good with LS motors and I don't mind ripping the heads off to put ls7 lifters in if I have too but I want to see what other people are doing first.
Thoughts?
I have been doing some reading and a ton of trailblazer, saab, and other 5.3 guys are having the same issue.
Some say replace drivers side valve cover with Pcv. Some say it's the AFM valve in the oil pan spraying on the pistons and rings. Some say tune out the AFM completely.
I am very good with LS motors and I don't mind ripping the heads off to put ls7 lifters in if I have too but I want to see what other people are doing first.
Thoughts?