Transmission ?? nonono

tpalibra · August 14, 2013

Have a '07 Silverado crew cab classic 5.3 157k.Was at a stop light , hit the gas, slow acceleration then accelerated without shifting , rpms went up then POP !! No more 4th, shifted to 3rd, nada. So I shifted to 2nd, truck started going, got past 20 mph and eased it into 3rd. 3rd working only after hitting 20 mph but still no 4th. Reverse works, 1st and 2nd work, 3rd will only work after going past 20mph . Oops I think I really did something bad to my baby.. No DTC showing ,just po332 which I know is a knock sensor that I was already going to replace the next day. Please help !!?? Don't know if I really missed up my Trans. or just solinoid .

Carder09 · August 14, 2013

Take it to the dealer or your local mechanic to get it diagnosed first. Sounds like you may have killed it.

gmtech4 · August 15, 2013

3-4 clutch MAY have taken a *&&%

Bad Bowtie2 · August 15, 2013

What does the transmission fluid look/smell like??

tpalibra · August 16, 2013

What does the transmission fluid look/smell like??

Trans. fluid is still red , doesn't smell burnt...Will be taking the truck in to be checked out.

ATMINF · August 16, 2013

The 4L60 E trans aren't that robust. I would find a good trans shop and see what they charge to do a rebuild and upgrade. Just getting a reman unit means its still has the inherent weaknesses in it. Some of things to ask for is a upgraded sun shell, better bands, better clutch packs, and also if you don't mind a much firmer shift, is corvette servos. I might have screwed up the exact terms and upgraded parts needed, since I had to get my old Camaro trans upgraded back 12-14 years ago. Hope this helps.

TJay74 · August 17, 2013

If you do have to rebuild I would ask for a Kevlar band, Corvette 2nd gear servo, and maybe a shift kit in the new unit.

Bad Bowtie2 · August 20, 2013

The 4L60 E trans aren't that robust. I would find a good trans shop and see what they charge to do a rebuild and upgrade. Just getting a reman unit means its still has the inherent weaknesses in it. Some of things to ask for is a upgraded sun shell, better bands, better clutch packs, and also if you don't mind a much firmer shift, is corvette servos. I might have screwed up the exact terms and upgraded parts needed, since I had to get my old Camaro trans upgraded back 12-14 years ago. Hope this helps.

Buy a GM reman 4L65E. These came in the Silverado SS & Chevy/GMC VHO's. Bigger internals where it "helps".

Price shouldn't be WAY far off from a regular 4L60E.

tyhuck · August 21, 2013

The 4L60 E trans aren't that robust. I would find a good trans shop and see what they charge to do a rebuild and upgrade. Just getting a reman unit means its still has the inherent weaknesses in it. Some of things to ask for is a upgraded sun shell, better bands, better clutch packs, and also if you don't mind a much firmer shift, is corvette servos. I might have screwed up the exact terms and upgraded parts needed, since I had to get my old Camaro trans upgraded back 12-14 years ago. Hope this helps.

Had the exact same problem in my 05 last summer and I did the above to it. Cost me $1850, and afterwards she ran like a scalded ape, even on 35s. I would also recommend a tune from Justin afterwards, just for fun. Makes it a blast to drive.