Just had a questions for the trans guru's.My 47rh doesn't downshift to first at most stops,i have to shift it manually to first,then back to drive when i'm stopped.It will then take off in first and go through the gears.I know my throttle position sensor is bad,not enough voltage even longating the holes and turning it.Only .60 volts,not the minimum 1.2 volts.Would the tps cause the trans not to downshift at stops?Thankyou much for the help.

 

It may be time for a rebuild. The pressure in the gov. circuit is too low, or something like that is going on. Get a good trans shops opinion.
What is the history of this trans? Has it had regular fluid changes? How many miles?

 

possible gov. sticking. one thing that usually works is to get speed up to 25mph, push lever to park for 2 sec. be sure not to stop in reverse " you wont like it" this will shake the gov. valve real good. dont laugh i got this from a factory rep. in the late 60s. i have never hurt a lever shifted chry. trans doing this. dont do it in a cable shifted older trans did crack one of those. chry. says it wont go in park above about 10mph. you try this at your own risk.

 

Thanks J-fox and jughead for your replies.I thought it might be governor related,i believe they are hard to access,in the overdrive tail housing.The truck has 230k on it,i have owned it the last 70k.I have serviced the trans twice.I do not know if the trans has had previous repairs,i purchased it from a car lot.I will save for a dtt rebuild,hopefully by spring.Thanks again for your help.

 

I'm certainly not saying you're wrong, but talk about making a leap of faith the first time you try it! I'd be too scared. It just sounds crazy!

 

Quote: My 47rh doesn't downshift to first at most stops,i have to shift it manually to first,then back to drive when i'm stopped.

My '98 12 v had exactly the same symptom, also it would shudder in OD lockup under heavy load at 1500-1700 rpm. Does yours do that? The problems are related and indicate a transmission going bad and nothing you can do about it except rebuild. The lack of downshift is caused by particulates clogging orifices in a solenoid valve. The particulates are from friction material from slipping. Once it starts it will continue.

I had the governor solenoid replaced, valve body cleaned, and governor transducer replaced, $400 wasted. The symptoms returned in a few months after more particulates were produced.

Now I have the ATS setup. Very solid, no slip.

 

Since we have this thread going, I'll comment on some symptoms I am having.

Sometimes, when I pull up to a stop sign, my transmission does not shift into first. I will then accelerate from a stop, and the transmission will downshift into first after I start moving. Any ideas?

 

leap of faith is rite. when that factory rep did it i almost bailed out. scared the stew out of me. it will work on most any trans that has the gov. bolted to the park gear.

 

Thanks guys for the responses,No mine does not shudder in overdrive,surprising though,my tps voltage is low.It started to take off in 3rd at stops,then fixed itself for awhile,then went back to the third gear starts,it also hangs up on the second to third shift,does not seem to matter where the shift cable is adjusted.It shifts through the gears fairly well with the shift cable totally disconnected.The overdrive button has never worked right since i bought the truck,when you push the overdrive button it puts the trans into overdrive and lock up at any speed.I've had the truck for a year and a half,it always has shifted funny.all on the truck was stock when i bought it.I thought about taking the valve body apart and checking it.Maybe somebody assembled it wrong.Thanks again for the help.

 

royta said: Sometimes, when I pull up to a stop sign, my transmission does not shift into first. I will then accelerate from a stop, and the transmission will downshift into first after I start moving. Any ideas?

That is exactly what my truck did. See my post for the cause and fix. With my ATS setup, I can now feel it shift down to first gear just before coming to a stop.

 

I had the same problem about 2 years ago. Ended up doing a rebuild. Ever since then it has been fine. The only thing I did wrong was that I got a stock rebuild. Iwas told that this can also be caused by idleing to long in park, there is no fluid circulation in park. Since then I always idle in nuetral . I also have a habit of going up and down through the gears like a standerd fairly often. tranny still works like new evan with miles of towing on it.
As for the shifting to park at 25, I want to see it on someone elses truck first

 

I have a trans question that seems appropriate for this thread:

my trans will go through the gears without hesitation if i am light on the throttle or if i am heavy on the throttle, however, if i accelerate at a moderate rate, it will shift back and forth between gears anywhere between 35 and 40mph. Has anyone else had this happen to them? I am not sure what to think of this issue.

 

come by my place sometime and i will demonstrate with my truck which by the way doesnt have any problems.

 

Had a prob. similar to this with my 97 3500 4x4 turned out to be the solenoid inside the pan the price was about 100 bucks if I remember right a real easy job if you know how to change your tranny filter its right there turned out to be just a bad wire but I changed out cause it was right there and whats to say another wire on it wouldnt fail then you have to drop the pan and change the fluid all over again. I have been told on diffferent years its not so easy I think the same solenoid on different years is inside the tranny itself but this style is much less prone to going bad also if you can believe that. I can see if I still have the part # if you have the same style as mine and need it.

 

Hello RedD. Do you think you could find that part number?

My truck will in fact drop to first if I come to a complete stop. If I give low to mid throttle, the transmission will not downshift to first. If I give mid to heavy throttle, the transmission suddenly downshifts to first. This is especially noticeable at a particular stop sign that is located just prior to cresting a hill.

I spoke with somebody at DTT about my trans problem of not automatically dropping into first when slowing down to a rolling stop. I was told to first look at at the kick down cable at the top of the transmission. With the throttle to the floor, I should be able to move the lever at the top of the transmission another 1/16" of an inch. Next, I should look into the governor solenoid or the governor pressure sensor.