Question about 1999 Chevrolet Tahoe

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Transmission slipping 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. 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. When I start the truck and put it in gear, it jumped. While driving, the transmission is slipping. It feels like it is in a lower gear. I may change the transmission fluid once since having the truck. I was going to start first with changing the transmission fluid and filter, and add some Lucas transmission to it. I heard flushing may make it worse. I know repairing the transmission is the most expensive thing to do.

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  • 4 Answers

Not to sound condescending, but have you checked to see if you are low on transmission fluid?

Posted on Mar 09, 2017

  • d c
    d c Mar 09, 2017

    Everything is fine. I was driving in



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Posted on Jan 02, 2017

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SOURCE: Hard Shifting after highway driving (1997 Chevrolet Tahoe)?

The problem sounds like your kick down cable has gone bad. There should be a cable that runs from the transmission to the linkage on the TBI(i'm assuming it is a TBI[Throttle Body Injection]) At the throttle bracket, it is the lowest cable. It should have a little plastic box and you should be able to push on the button and slide the little plastic piece in or out of the box. This will adjust your shift points, being plastic, the cable likes to slip if it gets old. Also if you have book or have access to one it should tell you how to locate and check it but usually you have to replace them once they start to slip, the one I got for my 1992 was only like 28 dollars so it's not to bad just a real pain.

Posted on Jun 25, 2008

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SOURCE: Chevrolet Malibu 2001 Transmission Flush or not

75,000 miles isnt alot of miles,unless they were mostly city miles. If you aren't experiencing any transmission problems,i would drop the pan,change the filter and whatever fluid the pan holds,and hold off on flushing the entire sytem.The clutches and bands sometimes don't do well when shocked with ALL new fluid that contains a certain amount of detergent.The only real problems i have seen with the total flush is on Dodge trucks of the 90's up to even 2000 and some later models,the transmissions use a governor pressure sensor,and solenoid,and i have seen many of them set codes after the flush,and the components having to be replaced with new.Black fluid isn't a good indicator.Brown fluid,is better than black.And red fluid is the best.

Posted on Jul 07, 2008

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SOURCE: 2001 chevy impala transmission will not stay in gear

a chevy mechanic suspected shift cable was worn or damaged...mine will sometimes engage..and then wont engage at all even tho shifter moves freely....

Posted on Jun 19, 2009

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SOURCE: 2006 trailblazer ss automatic transmission problem

You friend broke the low one way clutch. He was rolling backwards and shifted into drive and floored it before the vehicle came to a stop.

Posted on Jun 29, 2009

  • 336 Answers

SOURCE: My 2002 chevrolet 2500hd 4 wheel drive will not

I would check the wire harnesses for damage (pinching, cuts and such) from the transfer case. There may be damage from the trans install. Also fuse panels both under hood and interior. Since no lights are on it is probably a fuse or the harness is disconnected.

Posted on Jan 11, 2010

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