AskPatty Certified Female Friendly Logo
My 1999 Chevrolet Tahoe won't change gears. It will run fast speed, but won't change a gear.

Answers from the Automotive Experts

Brandy Schaffels, Editor at, Inc. You don't mention your mileage, but considering the age of your vehicle, it might be time to replace your transmission. First be sure you have the correct amount of transmission fluid, here is a link to a video to help you with that: If that doesn't help things, please find an AskPatty Certified Repair Shop at and they can help you diagnose and repair the problem.

Maryann Croce, Owner at Croce’s Transmission Specialists Hi Annette For your 99 Chevy Tahoe, if the vehicle will not change gears, this could be a transmission related problem. The vehicle should be scanned for any codes. If the vehicle is not shifting correctly it can be caused by an electrical, mechanical or hydraulic problem. By getting it diagnosed this will determine what kind of failure it is and you will know what kind of repair options you may have. Thanks If you need assistance finding a local technician, please find an AskPatty Certified Repair Shop at and they can help you diagnose and repair the problem.

Contribute to this question:

blog comments powered by Disqus

Related Chevrolet Tahoe FAQs

  • My Chevrolet Tahoe had a duck waddle/wabble to it when I drive it. What could be causing ... Read More
  • I need to know how to get my radio working again on my Chevrolet Tahoe after my battery ... Read More
  • I Had A Friend Fix the Transmission on my Chevrolet Tahoe. When I Went To Start It I ... Read More
  • How to fix the annoying buzz sound inside the car? Read More
  • I'm trying to by a 2003 Chevrolet Tahoe w/ 170000 miles on it. The SUV seems to be in ... Read More
  • My Chevrolet Tahoe has no fan heat in front.The aux fan heat works in back. Is it a bad ... Read More
  • How do I add transmission fluid to my 2001 Chevy Tahoe? Read More
  • How many months should my 2009 Chevrolet Tahoe go between oil changes? Read More
  • I have a 1999 Chevy Tahoe. I have a code that just came up p0452. how can I fix the ... Read More

Need Car Advice?

Ask The Experts!

Find Cars For Sale

Help Our Charities