1997 blazer valve body

[carls47807]

Hello,

I just bought a 97 blazer that needs a transmission. It will move in 4 low, but just slips in regular. I pulled the pan and valve body. I noticed a couple of the apply valves aren't moving very easily (the 4 in a line between the tcc solenoid and 1-2 shift solenoid). (i haven't pulled any of the solenoids yet). I know it needs a valve body, or this valve body needs to be repaired. I am going to rebuild the transmission as well. It had code 1870. My question is where is the TCC apply valve that everyone is talking about that goes bad? And is it common for other valve to stick in the bores as well, and what is the proper procedure for replacing those. I will post some pics of my valve body showing you what i mean. Thanks so much for your help.

Carl

[MT-2500]

Welcome to AF.

If the valves are sticking I would suspect you have a hard part grinding up or worn out and throwing grittie metal in the valve body.
Was there metal shaving and ground up metal in the pan and filter?

Valve bodies can be cleaned and valves polished up.
Along the years they have a TCC clutch apply valve kit to take care of the 1870 code. and slip problem.
Sonax web site has the repair kit for the valve body.

If you are going to rebuild it take it down to bare metal and clean up everything good enough to eat off of.

Then inspect every thing for wear.
Replace all worn hard parts and bushings and planetary gears and thrust washers.
Update the sun shell.
Get the acc kit for valve body.
Replace the converter with a good quality one.
And be sure to flush the rad transmission cooler.
Get a transmission hand book and go threw the repair procedures and updates.
Go threw the front pump real good.
Use good quality clutches and seals.
Replace all sealing rings and a special seal installing tool is required to do that job.
The old days of throwing a 40 dollar kit is over.
Your cost may run 750-1000 dollars for a good quality rebuild if done right.
if the transmission is high mileage and worn bad.


http://72.19.213.157/files/4L60ERepairs.html
http://72.19.213.157/files/4L60ERemoval.html