Car Problem Reports

Pontiac G6 Oil Leak From Front Crankshaft Seal

Pontiac G6 Problem
48 Reports
Me Too

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

Engines Affected: 2.4L 4 Cylinder, 3.5L V6, 3.6L V6, 3.9L V6, V6

Average Mileage: 83,471 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, , 3.9L V6, 75,000 mi

    On my 2007 gt g6 Pontiac I've been seeing a little oil leak , looked under when chaining my oil and filter
    , it seems to be leaking between motor and bell housing, I was look how to get my oil chang light off
    My radio , and I found here on web site about the leak problem other owners have or having, haven't
    Look any farther to see if there's a recall on it ,

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  • Visitor, , 3.9L V6, 89,000 mi

    crankshaft seal leaking

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  • Visitor, , 3.6L V6, 68,000 mi

    bad oil leak from gasket

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  • Visitor, , 3.5L V6, 65,000 mi

    Oil dripping on ground under car when parked. Loss of oil when oil is checked. Smell of oil burning on engine.

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  • Visitor, , 3.5L V6, 97,041 mi

    After spending $600 to fix oil pan/gasket leak, now advised crank shaft seal and timing cover leak. Shop wants another $700!

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  • Visitor, , 3.9L V6, 75,563 mi

    Took Pontiac G6 GT Convertible 3.9 in for recall and mechanic also informed me that I had an oil leak. I was told it is the oil pan gasket.

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