Question about 1999 Chevrolet Tahoe

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When I start the truck and put it in gear, it jumped. And while driving, the transmission is slipping. Feels like it's in a lower gear. I may change the transmission fluid once since having the tr

I have a 1999 Tahoe with 99,000 miles on it. I brought in 2005 with 75,000 mile on it. Since buying another car in 2008, I hardly drive the truck, only during the winter, manly when it snow. The last two winters has been mild, so I never drove it. I would start it up just to let it run for 15 minutes, but that was it. Last year I decide to drive it a bit, and when I start it up it, and put it in drive, it would not move. I let the truck run for 20 minutes, and try again, it moved. I drove it around, and park it. I never drove until last week.

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Transmission probily needs rebilt

Posted on Oct 24, 2012

  • Throb Throwa
    Throb Throwa Jun 14, 2014

    It doesn't need to be rebuilt. That's a stupid answer. When a vehile sits for a very long period of time, tranny fluid can drip down from around the gears and overflow the tranny pan. The pan is made for having tranny fluid in it, and having tranny fluid all up in the transmission and torque converter. When all that flows downward due to gravity, the tranny pan will overflow and a decent amount of fluid will spill over. Then, when one finally goes to use the car, there's not enough tranny fluid in the tranny to operate the transmission. Check your transmission fluid in the method recommended by the car maker, add the appropriate amount, and you might just find that it all works great again.

  • Throb Throwa
    Throb Throwa Jun 14, 2014

    Also, don't ever let a car sit for months and months without driving it. That's the worse thing one can do to a car. Don't just start it up once in a while, drive it one day at least every month during your regular daily routine.


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It might as simple as a loose shift lever at the transmission or it could actualy be the transmission itself (splipping clutch pack). I would have the transmission checked and serviced if you haven't done so already.

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