Car Problem Reports

GMC Jimmy Transmission Output Seal May Leak Fluid

GMC Jimmy Problem
15 Reports
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Model Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998

Drive Trains Affected: 2WD, 4WD

Average Mileage: 173,405 mi (137,434 mi - 197,000 mi)


The transmission output shaft seal may leak transmission fluid. On 2WD models, this leak can cause the transmission mount to become oil soaked, which will require replacement of the mount along with the leak repair. On 4WD models, if this seal leaks, the fluid will leak into the transfer case, causing it to become overfull.

  • Visitor, , 4WD, 170,000 mi

    transmission fluid is now in side 4wd actuator vacuum

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  • Visitor, , 4WD, 197,000 mi

    tranny fluid leaks and I check the stick it says its only leaks when hot

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  • Visitor, , 4WD, 197,000 mi

    transmission just above the transmission stick housing. I thought it was the o-ring replaced still leaking

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  • Visitor, , 4WD, 179,000 mi

    Got home from vacation to see a 4 foot wide transmission fluid river flowing from my car to my neighbors garage!!!!

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