RShrimp
OBS Enthusiast
I just did a Transgo Reprogamming kit on my 700r4. The trans was in good shape and worked in all gears (no Lockup but that's another story) It was, however weak slow shifts. Fluid was clean and just a little gray goo on the magnet. I followed the instructions to a T, watched several videos ect. I will say I will never do another on in the truck as it just makes too big a mess. I now shifts good and hard 1 to 2 , 2 to 3, and 3 to 4 whicj was exactly what I was after. Oh, Stock TBI 350 for now. When it's cold it works perfectly
The problem is after warmup of 10-15 miles it quits going into 4th. If you leave the lever in OD it will kind of fall out of 3rd but never go into 4th. If you let off the gas the engine goes all the way to idle and when you step on it it free revs up to the point where the revs match and then goes. If you put the lever in D or 3rd it does not do this and it does some engine braking. Sometimes I can get it go into 4th by manual shifting it from a stop. Once in it will stay in until I slow down or hit the throttle hard (as expected)
The one part of the kit I did not do is the Servo ( I did not mess with it at all) 3 inch exhaust runs right next to it and I was afraid I would never get it back in and the band adjusted correctly so I just left it alone.
I installed a new TV cable and adjusted it by simply fully opening the throttle.
The problem is after warmup of 10-15 miles it quits going into 4th. If you leave the lever in OD it will kind of fall out of 3rd but never go into 4th. If you let off the gas the engine goes all the way to idle and when you step on it it free revs up to the point where the revs match and then goes. If you put the lever in D or 3rd it does not do this and it does some engine braking. Sometimes I can get it go into 4th by manual shifting it from a stop. Once in it will stay in until I slow down or hit the throttle hard (as expected)
The one part of the kit I did not do is the Servo ( I did not mess with it at all) 3 inch exhaust runs right next to it and I was afraid I would never get it back in and the band adjusted correctly so I just left it alone.
I installed a new TV cable and adjusted it by simply fully opening the throttle.