2001 Ram 1500 tranny shift issues

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night_caper@hotmail.com - 21 Aug 2006 03:18 GMT

Hi everyone,

I have a 2001 Dodge Ram 1500 SLT 4x4, 108,000KM, 5.2L with the 4-speed
automatic tranny. A while back, I went through a total mess with the
dealership I bought it from (non-dodge), the problem was that it
wouldn't stay in overdrive. They replaced the overdrive solenoids, the
fluid and filter 3 (!) times, and then sent it to a tranny shop ...
they cleaned the valve body, and replaced the TPS. Still not fixed,
though better, probably due to replacing the TPS. Anyhow, it ended up
at a 5-star chrysler dealer after they admitted they had no idea, and
the 5-star dealer reprogrammed the TCM, problem solved. I know you're
all thinking, that should have been the first step.

Ok, so even before the TCM was reprogrammed, sometimes it would take
off sluggish, sometimes it would go sluggish, then make a soft bang,
and take off normal. I thought the parking brake was stuck on. It
turns out that it is not shifting in 1st gear! It does this almost all
the time now. If I shift it manually, no problems. Any ideas what
this may be? I just want enough information to not get screwed over
again. To me, it sounds like a PCM/TCM issue, but I'm no tranny
genius.

Thanks!
Derek

Reply to this Message

Max Dodge - 21 Aug 2006 05:05 GMT

Its probably a fairly typical problem. The governor pressure sensor and the
governor pressure transducer are not working correctly.

The first thing they should have done was check to see if the PCM had the
codes set for this malfunction.

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Max

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> Hi everyone,
>
[quoted text clipped - 20 lines]
> Thanks!
> Derek

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night_caper@hotmail.com - 21 Aug 2006 15:33 GMT

Hey, thanks for the reply. Pressure makes sense, cause I just found
out this morning if I give it over 1/2 to 3/4 throttle it will shift
down to 1st ... now to convince these other guys. I followed your url
devilbrad.com to the forums there, looks good ...

Thanks,
Derek

> Its probably a fairly typical problem. The governor pressure sensor and the
> governor pressure transducer are not working correctly.
[quoted text clipped - 35 lines]
> > Thanks!
> > Derek

Reply to this Message

night_caper@hotmail.com - 21 Aug 2006 15:46 GMT

btw, are these located inside the transmission, or on the outside? Are
they easily replaced? I guess I *should* buy a manual :)

Thanks,
Derek

> Hey, thanks for the reply. Pressure makes sense, cause I just found
> out this morning if I give it over 1/2 to 3/4 throttle it will shift
[quoted text clipped - 3 lines]
> Thanks,
> Derek

Reply to this Message

night_caper@hotmail.com - 21 Aug 2006 16:10 GMT

One last question (sorry for multiple posts), is the governor pressure
transducer the same thing as what other people call a "governor
pressure solenoid"?

Thanks,
Derek

> btw, are these located inside the transmission, or on the outside? Are
> they easily replaced? I guess I *should* buy a manual :)
[quoted text clipped - 9 lines]
> > Thanks,
> > Derek

Reply to this Message

Tom Lawrence - 21 Aug 2006 17:24 GMT

> One last question (sorry for multiple posts), is the governor pressure
> transducer the same thing as what other people call a "governor
> pressure solenoid"?

No. The governor pressure transducer is also called a governor pressure
sensor, but it's a different (though related) component to the solenoid.
The solenoid regulates governor pressure, based on signals from the PCM
(think of a valve on a faucet). The PCM senses governor pressure via the
sensor/transducer (think of your hand under the faucet feeling the
pressure). Your brain is like the PCM.

Reply to this Message

Max Dodge - 21 Aug 2006 21:47 GMT

Inside, on the valvebody. The FSM is worth far more than its asking price,
buy one sooner than later.

Signature

> btw, are these located inside the transmission, or on the outside? Are
> they easily replaced? I guess I *should* buy a manual :)
[quoted text clipped - 9 lines]
>> Thanks,
>> Derek

Reply to this Message

night_caper@hotmail.com - 07 Sep 2006 17:50 GMT

Hey Max,

Thanks so much ... I got it fixed up about a week ago, no problems at
all now.

later,peace
-Derek

> Inside, on the valvebody. The FSM is worth far more than its asking price,
> buy one sooner than later.
[quoted text clipped - 21 lines]
> >> Thanks,
> >> Derek

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