Car Problem Reports

Pontiac G6 Oil Leak From Front Crankshaft Seal

Pontiac G6 Problem
37 Reports
Me Too

Model Years Affected: 2006, 2007, 2008, 2009, 2010

Engines Affected: 3.5L V6, 3.6L V6, 3.9L V6, V6

Average Mileage: 79,266 mi (28,900 mi - 199,800 mi)


Vehicles with a 3.5L or 3.9L V6 engine may develop an engine oil leak from the front crankshaft seal. Our technicians tell us a revised front crankshaft seal is available to correct this concern.

  • brendon04, , 3.5L V6, 140,000 mi

    oil leaking. have add a qt and half evey week

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  • Visitor, , 3.9L V6, 60,000 mi

    Small leak, no perceptible oil under the car, or out the exhaust. As noted, advised on routine oil change. A local Chevrolet dealer, (no Pontiac, right?)- relplaced the oil sensor-wasted $150 beans. My son has the same engine, and has lost a quart every 1m miles-47m now, and problem has existed since 30m, and multiple trips to the original dealer. I plan to take the info obtained from this site, (thx), and, finally, get this fixed-will advise results....

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  • Visitor, , 3.5L V6

    Diagnosed during a routine oil change at the dealership.

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  • Visitor, , 3.9L V6, 130,000 mi

    I have burned oil since 78k miles. But dealership advised It was not enough to be fixed under my warranty. Not today I noticed oil on my driveway. So I went to get an estimate and I need rear main seal set, crankshaft oil seal, timing cover gasket and oil filter adapter gasket so I am being told. This car is junk !

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  • Visitor, , V6, 89,000 mi

    Crankshaft seal leak

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  • Visitor, , 3.5L V6

    terrible oil leak

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  • Visitor, , 3.5L V6, 75,000 mi

    The whole bottom of my car is covered in oil. Mechanic diagnosed. His exact words were "The car is not even worth repairing. I would check the oil often and add it as it needs it until it dies then drop a new motor in it." I will never buy a GM again... My 01 Eclipse GT has no leaks at all and is Mechanically perfect!

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  • Visitor, , 3.5L V6, 45,000 mi

    Dealer replaced front seal to stop oil leakage.

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  • Visitor, , 3.5L V6, 90,000 mi

    Not fixed! After i took it to the shop for the recall. Problem still exists.

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  • Visitor, , 3.5L V6, 118,000 mi

    Noticed a small amount of oil on garage. At next oil change, mechanic told me the oil was coming from the crank shaft seal.

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