I finally got my IROC on the road today after a *very* long engine rebuild. One thing I noticed, however, was that the transmission would slip briefly between shifts.

I haven't driven this car for a year, but when I did drive it before the rebuild the transmission felt perfect. The only thing that happened to the transmission since I did the rebuild is that it has been taken out, completely drained (as well as the torque-converter), put a new filter in, and both the front and rear seals have been replaced. I can't remember with how many quarts of fluid I filled it with after I installed it again. I checked the fluid level immediately after I had the engine running, and I "topped it off" then. But, it seems like the few times when I drive it around, I will come back to check the dipstick and the fluid level will be low again. And, with all new seals I know this transmission isn't leaking anything.

I have adjusted the TV cable by having somebody else floor the gas pedal and then pushing the cable as far back into its housing as it would go. Also, while I had the transmission out, one of the metal lines that goes up to the radiator from the transmission got bent a little (in the first bend as it comes out of the transmission). I checked it from underneath the car, and while I could tell that it was bent, it looked like fluid would still be able to get through.

Is this likely to get better as I drive it (sort of like a break in because it hasn't been run for so long)? Do I just need to keep an eye on the fluid level and continue to "top it off" every time I see the level go down?

Thanks

 

First thing I would do is recheck the tv cable. And then check it again if required.

 

The TV cable was actually the first thing that I thought of. I will check it again.

But, a mal-adjusted TV should only change *when* the transmission shifts, and not weather or not it slips when it shifts, right? At least, that was the experience that I had before I adjusted the TV cable on my V6 Camaro.

Also, since I've only done this on my V6 Camaro (the '88 Camaro in the sig), I just assume that the procedure is the same as on the my IROC--just slightly different locations. The idea is to get have the TV cable extended to its maximium position when the throttle is completely open, so that they're both synchronized.

I've used transfixleo's method of adjusting the TV cable on my V6 car in the past; does that same method work on a L98 equipped car?

Thanks again

 

The position of the tv will not only change the rpm of the shift but the soft or hard of the shift. The procedure I use is to depress the release and then pull the cable towards the firewall. Then with engine off slowly put your foot to the floor and the cable should pull forward and lock into place. Depending on the condition of the cable and linkage you migh need to fine tune it a bit. For instance, my suburban ( heavy ) likes to have the cable pulled back about 1/16", my wifes Z28 ( light and driven lightly )likes the cable to be about 1/16" ahead and my iroc likes it where it sets. Hope this might help.