I have an '01 Sierra 1500 (4wd, 5.3L, Auto) last week I was driving down the road & I noticed that the engine seemed to be taching up higher than usually before it would up shift, I then tried to get it to shift down (hit passing gear) the engine roared to life, like I hit neutral. I pulled into a gas station to check the tranny fluid, hoping that it was low & causing the tranny to slip... No luck, it was right on the money. When I got in the truck & put it in reverse & it was a no go. I limped the truck home.I had a tranny service at 60k miles (last April). The other day I went out to move the truck out of the drive way so that I could plow where it layed at rest & I drove it a little way down the road & it wouldn't shift at all (just 1st gear). I have made a few calls to local transmission shops, one said that it was broken shells (?) in the transmission & they have found this to be a common problem with trucks with 65-85k miles on them (mine has 82k) that GM had purchased defective parts & installed them, and it would cost around $2,500 to go through the tranny. Another shop said that it doesn't sound like anything too major. Might be a just a simple problem?? There cost to pull it & go through it was only $1,300. Just wondering if any one else has had these problems & what they found to be the trouble??? Also what are the shells in the transmission?? Believe the tranny is a 4L60E (that sound correct). Any help appreciated!!
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