Engine Mechanical problem
1998 Buick Lesabre 6 cyl Front Wheel Drive Automatic 62,000 miles
Guys - No one can figure out why my professionally rebuilt engine uses a quart of oil every 800 miles. The upper plastic intake manifold interior is coated with oil every time it's taken apart for inspection.
No smoking, no oil staining on the rear bumper, tailpipe is clean and the engine runs smooth.
The only portal between the crankcase and the intake manifold is the PCV system I am told. The PCV has been replaced 6 times. It is always wet on the "dry" side when inspected.
The bolts sealing the aluminum intake manifold to the engine block have been confirmed as sealed using a solvent test.
Where do we go from here to eliminate the oil consumption?
have the same problem?
Thursday, January 29th, 2009 AT 9:53 AM