Get ready for a 4 hour job removing and replacing the intake manifold. I also found that the bellows hose from the air cleaner had snapped and needed to be replaced. This is a 17 year old Avalanche with 190,000 miles and the first real mechanical problems with the engine.
π§ FEL-PRO OS 30690 R Oil Pan Gasket Set: Reliable Seal for Optimal Performance
9 Review
5W-40FS A3/B4
24 Review
RKX Vacuum Reseal Rebuild Gasket Replacement Parts
9 Review
π§ FEL-PRO OS 34308 R Oil Pan Gasket Set: High-quality, Leak-proof Solution for Optimal Engine Performance
9 Review