01 blazer 4x4 4L60E. Transmission shifts manually not in Drive
 

I checked fuse 11, I replaced the 1-2 shoft solenoid, new fluid and filter, no particles on bottom of pan, goes in all 4 gears if shift manually. Can feel 1st, 2nd, 3rd, and 4th. Can go 70mph and 4x4 works. No check engine lights. I checked all possible things and even looked at other posts. Nothing is similar to my issue. I can go in reverse and throw it in drive real quick and it starts to move forward slowly. Can throw it in first gear manually and works great. Please help.

Sounds like the valve body is shot.How old is the transmission?Look up the guys at "Monster transmission!"They should be able to walk you through to find out what`s wrong.

okay
 

Thank you. I will go ahead and try that. 115000 miles. Never had any issues

reply
 

Car shifts in all "4" gears. Tcc lock up activates at comstant speed. Car drive 70mph plus down the street. I can shift it manually and shift great and all. Leaving it in drive just won't move the vehicle. Monster trans says to send it to them or take to shop. I am very mechanically inclined and rebuild transmissions in the past. Just thought someone had similar problem before i go out and buy a transmission when it could be an electrically or simple issue....

I know this is an older thread but I have a 2002 S10 ZR2 that's pretty much doing the same thing. I was wondering if you ever got any resolution to your issue