Tweet
Hey everyone, first post! Nice forums, need to spend more time here.
Let me give you a bit of history first.
I bought a 1995 Cutlass Supreme convertible with 118k miles a couple years ago. It is currently at 149k miles.
I noticed that the tranny had already been rebuilt as the case had been painted baby blue. I don't know what the mileage at rebuild time was.
Transmission shifted "ok" at first. The more the miles have piled on, the rougher the 1-2 shift has become. EVERY other aspect is VERY good!
It seems to be less of a problem when its cold out, compared to when its hot.
I tried swapping out the modulator (no fluid was found in the line) for a brand new GM piece and it made no difference.
I had two transmission shops drive it. Unfortunately it was a cold day (35-40F) and both guys thought the tranny was fine, no work should be done. Both commented on a SLIGHT varnish smell on the fluid. But color was good.
Since I have owned this tranny for the past 30k miles, I know the shift quality isn't what it should be. I really can't say I sense any hesitation before the shift. It's not like the shift comes late, or the tranny is slipping and then catches... its just rough.
There have been 3 cars with 4T60Es in my family... and another 2 "close GM relatives"... so I KNOW what's normal.
Frankly at 148k miles I don't know how much longer I want to keep this car. So I doubt I would spend money on a full rebuild. I am looking at advice from a maintenance perspective, or, perhaps a minor repair of a known problem area.
Do you guys think fluid and a filter would help my situation, or make it worse?
Should I use plain jane Dexron III? What do you all think of high mileage fluids like MaxLife Dexron III?
Thanks everybody!
Brian
Let me give you a bit of history first.
I bought a 1995 Cutlass Supreme convertible with 118k miles a couple years ago. It is currently at 149k miles.
I noticed that the tranny had already been rebuilt as the case had been painted baby blue. I don't know what the mileage at rebuild time was.
Transmission shifted "ok" at first. The more the miles have piled on, the rougher the 1-2 shift has become. EVERY other aspect is VERY good!
It seems to be less of a problem when its cold out, compared to when its hot.
I tried swapping out the modulator (no fluid was found in the line) for a brand new GM piece and it made no difference.
I had two transmission shops drive it. Unfortunately it was a cold day (35-40F) and both guys thought the tranny was fine, no work should be done. Both commented on a SLIGHT varnish smell on the fluid. But color was good.
Since I have owned this tranny for the past 30k miles, I know the shift quality isn't what it should be. I really can't say I sense any hesitation before the shift. It's not like the shift comes late, or the tranny is slipping and then catches... its just rough.
There have been 3 cars with 4T60Es in my family... and another 2 "close GM relatives"... so I KNOW what's normal.
Frankly at 148k miles I don't know how much longer I want to keep this car. So I doubt I would spend money on a full rebuild. I am looking at advice from a maintenance perspective, or, perhaps a minor repair of a known problem area.
Do you guys think fluid and a filter would help my situation, or make it worse?
Should I use plain jane Dexron III? What do you all think of high mileage fluids like MaxLife Dexron III?
Thanks everybody!
Brian
Comment