Transmission Whinnnes

[The70RT]

I bought my Dodge Ram 3 years ago with 20K on it. It made light whine when it was cold in reverse. It never got any worse and shifted fine. I changed the fluid and the pan was clean. Since then it has remained full and clear. A couple weeks ago my check engine light came on and I got a P1740 code (overdrive solenoid). I now have 50K on it and is under warranty. I took it in and they said my torque converter was coming apart and my OD bands showed signs of overheating. It didn't have a receiver on it when I got it or a tow ball on the bumper. Since then I installed a receiver and towed some vehicles once in a while. Anyway it had to be rebuilt. It was 2K....good thing for the warranty. They even found a wheel bearing that warrented replacement. I never noticed any noise or tire wear. They sure don't make'em like they use to.

[68 RT]

My 99 1500 4x4 does this in reverse too, bought the truck used with 60,000. Now has 98,000 no problems yet. I'll be ready for this though.

[John_Kunkel]

The whining/buzzing/moan in Reverse is caused by a rapidly cycling pressure regualtor valve, more of an annoyance than a real problem. There's a couple of TSB's on the subject.

Since there are no bands in the OD I would be skeptical of the diagnosis that said it needed rebuilding. Since it was free there's no harm, no foul.

[The70RT]

The whining/buzzing/moan in Reverse is caused by a rapidly cycling pressure regualtor valve, more of an annoyance than a real problem. There's a couple of TSB's on the subject.

Since there are no bands in the OD I would be skeptical of the diagnosis that said it needed rebuilding. Since it was free there's no harm, no foul.

My fault. I meant clutches. The paper work shows P1740 tcc or od solinoid performance would not pass the tcc clutch test - trans needs rebuilt. I hope they rebuilt it since I dropped it off last Thursday afternoon and they called Wednesday morning when it was done.

[RD]

The whining/buzzing/moan in Reverse is caused by a rapidly cycling pressure regualtor valve, more of an annoyance than a real problem. There's a couple of TSB's on the subject.

Since there are no bands in the OD I would be skeptical of the diagnosis that said it needed rebuilding. Since it was free there's no harm, no foul.

My fault. I meant clutches. The paper work shows P1740 tcc or od solinoid performance would not pass the tcc clutch test - trans needs rebuilt. I hope they rebuilt it since I dropped it off last Thursday afternoon and they called Wednesday morning when it was done.

considering putting in new clutches for a OD unit means just pulling the tailshaft OD unit off and putting in two sets of clutch discs... its not hard.  I wonder if they replaced the solenoid?  That is what I would ask them if I were you Dennis.

did they say that about your converter and "OD" components before or after they dropped the transmission and tore it apart?

[The70RT]

The whining/buzzing/moan in Reverse is caused by a rapidly cycling pressure regualtor valve, more of an annoyance than a real problem. There's a couple of TSB's on the subject.

Since there are no bands in the OD I would be skeptical of the diagnosis that said it needed rebuilding. Since it was free there's no harm, no foul.

My fault. I meant clutches. The paper work shows P1740 tcc or od solinoid performance would not pass the tcc clutch test - trans needs rebuilt. I hope they rebuilt it since I dropped it off last Thursday afternoon and they called Wednesday morning when it was done.

considering putting in new clutches for a OD unit means just pulling the tailshaft OD unit off and putting in two sets of clutch discs... its not hard.  I wonder if they replaced the solenoid?  That is what I would ask them if I were you Dennis.

did they say that about your converter and "OD" components before or after they dropped the transmission and tore it apart?

They told me before. I was wondering the same ....like how did they know? They said - solinoid performance would not pass the tcc clutch test. They told me they rebuilt the whole thing except some hard parts. Two solenoids and converter were also replaced? I should have asked to see the old parts. I do have a kit number on my invoice. I gotta year left on my warranty to see what it does.