90 RR Classic Shifting Sticking

[Ground Hog]

I have a 1990 RR Classic 3.9L. I just had the radiator and hoses changed out and now having issues with the transmission sticking - then responding slowly - then more sticking. Is this related to the radiator change? Is my transmission screwed now?

[ThePhotographer]

Hi Ground Hog, as you may know the RRClassic has a transmission oil cooler that routes up I believe below the radiator. Were any of those hoses messed with during the radiator install?

[ThePhotographer]

Also, since I'm assuming you disconnected your transmission cooler lines for the install, did you refill the transmission fluid that you lost? I had a similar issue when I didn't have enough fluid after a tranny flush.

[Ground Hog]

Thanks for the reply! I thought so....The guys that refit the new radiator had no clue. I just hope my transmission isn't damaged already.

[ThePhotographer]

I doubt it is. The ZF is a killer transmission, and will last quite a while. I would either do a full flush, or just refill to the proper level.