Problem Description and Possible Solution
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Average mileage: 128,195 (90,000–232,854)
Engine affected: 3.1L V6
17 people reported this problem
Same happen to me.Coolant leaking from lower intake gasket. A guy working from house replaced with aftermarket($895)and started to leak in weeks. Then had redone with factory gasket(Do water pump and thermostat or will leak next and Save$$$ on labor)at mobile service shop.($1125)Runs Great and no more Leaks. Well Worth genuine parts.
Noticed that I was losing coolant. First thought the heater core was leaking, replaced that and still had the leak. Then realized it was the intake manifold gasket on the drivers side, after allowing it to leak for awhile I broke down and fixed it. Shop said it would be $1,200-$1,500 to fix. I did it myself, parts total about $100 and it took a total of about 13 hours. VERY involved job but it can be done. No more leaks.