Help FT Valve body install/problems

Y2kXLTSport · #1 04-11-2003, 08:47 PM

Help.

I've just finished installing the Factory Tech Valve body (4R70W)and I don't know what is wrong.

Task went well, except I had to replace the molded lead because I broke a tab off.

Finished a few moments ago and went for a test drive. Truck shift 1-2 fine, 2-3 fine, but no 3-4 (overdrive). Engine just freewheels. If I push the OD off button, it shifts down just fine.

In second gear, there is no engine braking at all. 1st gear has plenty of braking.

What did I do wrong?

Does anyone have a phone number for Greg, I've emailed him, but no answer yet.

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beastie · #2 04-12-2003, 02:50 AM

After I installed my TransGo shift kit, I had the same problem; however, I needed to get my tranny rebuilt, I had just blown up OD, but that was a known problem on the early 4R70Ws, I hope you don't need that. I dropped my valve body I think 6 times, and I could never figure it out, I had to bring it in, and let them figure out what was wrong, and I watched them disassembly my tranny, and the OD clutches 1 I think was broken, and the others were just worn down.

Y2kXLTSport · #3 04-17-2003, 07:29 PM

I took it to a shop, cause I figured that if it was like that following what I'd already done, I didn't want to screw it up anymore. Turns out that I'd done something during accumulator replacement that allowed a pin to not be in contact with a band and the band to shift inside the trans. Fortunately, it appears the band didn't burn up and now I'm shifting quite well.

02XLT · #4 04-17-2003, 08:49 PM

So all is well then? He usually doesn't get on email till pretty late at night, so I am sure he will get back with you. How much did the tranny shop charge you to fix it? Gregg will be shipping me my valvebody Saturday so maybe next weekend I will tackle this project. Any pointers are always welcome...

-Brian