Last post on Nov 02, 2013 at 6:36 AM
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Dodge Dakota, Truck
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#923 of 1029 Re: 2002 dodge dakota pick up. [carverman]
Sep 27, 2011 (3:06 am)
Thankyou for advice.mileage is 97.000.dont knoe when transmission was serviced last.bought from private owner bout 8 months ago.Brang to walts trams shop.Told me we would have to drop pan and inspect transmission for contamination. called back and said yes , their is. would cost 1.300 to replace transmission. or he could replace sensors and solenoid for 300.00 but could not guarentee it would fix problem. said could last just around the corner when driving, or could last six months.so i told him to just put it back together for 75.00. daughter could not effort it at the time. do you think i should i get 2nd opinion? Thanks again for all your help. dpezfive.
#924 of 1029 Transmission overheating
Oct 01, 2011 (7:42 am)
I have a 2006 Dakota 4.7L 4X4 with under 50,000 miles. For the Last couple of months the transmission overheat idiot light coms on intermittantly. Ther is no rhyme or reason behind it. Then the light does come on, the transmission starts shifting hard, and the engine will runn a little rough. It will only stay on for a couple of minutes, then the tranny is fine.
It will come on both with in minutes of starting or after running for a period of time.
Fluid levels have been fine. and the fluid didn't need to be changed.
#925 of 1029 Re: 2002 dodge dakota pick up. [dpezfive]
Oct 02, 2011 (3:23 am)
Well there are no guarantees in life either. (97,000 miles on the truck transmission could also mean a band adjustment, as these like the clutches
have material that is prone to wear over time. Nothing you can do if the
the clutch material is worn, so some slippage may occur, but the bands (2)
can be adjusted, once the pan is dropped.
Throttle body valves sticking is the most common issue if the fluid and filter
is not changed at regular intervals and this is something that should be
done on a regular (50,000 mile basis or even 40,000 miles). The owners
manual gives a schedule for routine maintenance and oil changes on the
engine, why would someone ignore a complex mechanism like the
auto transmission..I don't know, but if you ignore periodic maintenance
on an automatic, sooner or later, you will have some trouble with it.
The last thing that can happen with the Chrysler PCM controlled transmissions, is that there are solenoids and sensors that are controlled
by the PCM to determine shift points and these can fail.
The transmission shops usually don't have the time to spare for an accurate
diagnosis of what has gone wrong on a transmission with practically
100K miles on it, so he has offered a couple of options..
replace the entire transmission and get some kind of 1 year garantee
or replace the electrical components on it (cheaper) and hope that
fixes the problem.
Certainly a second opinion is worthwhile, if it was mine, and I knew
basically what the symptoms were, I would go with the routine service
first (fluid/filter)and have the bands adjusted and perhaps the solenoids
replaced at the same time, while the pan was off.
#926 of 1029 Re: Transmission overheating [hallmarc]
Oct 02, 2011 (3:56 am)
You must mean the transmission temperature sensor light?
The Chrysler automatic has two sensors that are related to it.
The first one is a sensor that determines transmission shift pressure
and it's output to the PCM will vary depending on the pressure of the
fluid available at the shift valves in the control valve body.
The second one is a thermistor type that senses the temperature of
the fluid in the transmission to determine proper shift points when
components are warmed up. Ie: the transmission will not shift into
overdrive (4 gear) until the sensor tells the PCM that the predetermined
temperature range has been reached.
Transmission fluid temperature is regulated by the transmission cooler lines
(you have two..one going to the transmission cooler tank on the side of the
rad and the other coming back from from the rad to the transmission.
These help to warm up the transmission fluid transferred from the rad heat
and depending on how good your rad is at cooling the engine, keeps the
transmission at some predetermined temperature, if the rad is providing
So in summary:
a) It could an actual transmission cooling issue bring on the light, and the rad or the transmission cooler tank needs to be reversed flushed.
On the rad/ transmission cooler tank, there is an anti-drainback
valve at the fittingof the outlet line that goes back to the torque convertor. (This prevents all the fluid in the tank from draining back to the torque convertor when the engine is not running) and this being a one-way valve, it may be restricted somewhat.
b) it may be the transmission temperature sensor itself, (this is a 5 volt
If it is not functioning properly, the PCM will turn on a check engine
light and you should be able to read a code:
P-0712 Transmission temp voltage too low (under 1.55v)
P-0713 Transmission temp voltage too high (over 3.76 volts)
So obviously, if it is working, the voltage range that the PCM expects
to see is between 1.55 to 3.75 volts (In other words, only a
spread of 2.2v to determine the transmission temperature).
#927 of 1029 2005 Dakota shifts hard sometimes-only when cold
Oct 04, 2011 (1:29 pm)
Heres the background. Bought this 2005 Dakota 4x4 in 2007 with 12,000 miles on it. For the last 4 years (ever since I got it) it will occasionally hang in 1st gear only when it is cold. I can tell when it is going to do this because the rpm at idle is a little too high when it is started. It will then hang in 1st gear for a few hundred feet, then shifts hard into 2nd gear, and it seems fine after that. When it does finally shift into 2nd gear, the doors lock, and the idle returns to normal. This only occurs 2-3 times per month, so it is more of an annoyance than anything else. The truck now has 52,000 miles on it, and has had all regular sheduled maintenance done on time. The tranny fluid was just changed. Any idea what this might be??
#931 of 1029 Re: 2005 Dakota shifts hard sometimes-only when cold [harleyman123]
Oct 04, 2011 (9:32 pm)
Don't know why the door locks are affected by shift from 2-3, as the door locks are controlled by the CTM Central Timer Module.
Normal idle rpm should be around 1,000 when first started and engine/tranny is cold.
The delayed shifts when cold from 1st to 2nd are normally controlled by the PCM with the shift solenoid (also called the variable force valve solenoid). The transmission also has a TCC (torque convertor clutch solenoid) and a 3-4 (overdrive) shift solenoid.
Transmission output shaft rpm is sensed by the TSS sensor, which feeds back to the PCM to determine normal PCM controlled shift points. It may be starting to develop a weird symptom.
Had it failed completely, you would get a P-0720 "check engine light"code
posted by the PCM.
"TSS output too low with vehicle speed above 15 mph".
It's a possibility in your case.
I recently had hard shifting problems with mine, until I finally got that code and changed out the TSS. Shifting rpm returned to normal under
#932 of 1029 Re: 2005 Dakota shifts hard sometimes-only when cold [carverman]
Oct 05, 2011 (3:28 am)
I have the same truck as Harleyman (2005 Dakota Quad Cab, 4x4 with 4.7L engine), and mine also hangs in first gear on occasion. It has done that since day one (bought new back in 2005). It only happens maybe 10%-20% of the time; it only occurs right after starting up; and like harleyman said, after the first upshift to 2nd, 3rd, etc it's fine.