One problem related to power train has been reported for the 2002 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Chevrolet Tahoe based on all problems reported for the 2002 Tahoe.
I was driving home & while accelerating I noticed my truck begin to rev & no longer accelerate,my check engine light came on. I took my foot off the accelerator & put it back on it, I was in an 50 mph area, & my truck just continued to rev. I started to lose speed. I repeated to put my foot on the accelerator then I picked up speed but on to about 35 mph. My truck wouldn't shift to 3rd gear. I made it home. The next day I had it towed to the repair shop. I order a new transmission off ebay, had it installed & got my truck back in about 3wks. In June 2012 the exact same thing happened, my truck wouldn't shift into 3rd gear & my check engine light came on. I had the transmission replaced with another new transmission & in July 2013 the exact same thing happened again. This time I did not go get another new transmission. I started asking around & found that others have been having the same problem with their Tahoe transmissions. I then tried putting lucas stop slip & that did nothing to help the problem. My truck has been sitting for months because I have put too much money into new factory built transmissions & the transmission does not seem to be the problem.