Intake Manifold Gasket May Leak Engine Oil on Buick Regal

Problem Description and Possible Solution

The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.

Problem Data
RepairPal Verified
Average mileage: 116,792 (90,000–150,000)
Engines affected: 3.8L V6, 3.8L V6 Supercharged
9 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004
36 people reported this problem
Viewing 1 - 11 of 11 comments
lower intake gasket leaking
what would be the replace cost
Loss of coolant and temp gauge to max.
I have oil leaking into my coolant. It will cost an estimated $1k - $1.8k to fix.
3800 motor
front gasket was replaced ... now back is leaking.
Not fixed yet. I was wondering about average cost.
Replace manifold gasket
Engine oil leak drips on ground.
coolant leaking into the intake manifold
Oil leaking
had to replace the engine manifold gasket. also replaced some inlet hoses that later leaked again. however the repair shop fixed this for me free of charge. this was a very labor intensive job that was not cheap, i recommend to save on costs check your serpentine belt and supercharger belt because when your engine is torn apart it may be cheaper to replace these then.
lower intake manifold gaskets and upper plenum assembly