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#903 of 1029 Trani problems
Aug 05, 2011 (4:33 pm)
I have a 2001 dodge dakota sport, 4x4, automatic tran, 3.9L. If i drive more than 20 minutes the overdrive off light will come on and the tran will shift down to 3rd. five minutes after that the red TRAN TEMP light comes on. The wierd thing is, when i start the truck (wheter the engine is cold or not) and put it in drive right away it will start in first gear but wont shift until i get up to 4 or 5 thousand RPMS. If i wait at least 7 or 8 seconds to put it in drive after starting then then trans will start me in 3rd gear making for a very slow acceleration. There is enough Transmission fluid btw. All 4 gears work but its just not shifting right and it seems to be overheating(i know it is becuase i can smell it burning when i stop. there are no unusual noises coming from the trani. Please help !!
#904 of 1029 Re: Trani problems [fedup25]
Aug 06, 2011 (3:51 am)
Could be a blocked anti- drainback valve in the cooling line, which will destroy a trans if it is blocked. If you have a 46re, the torque converter could be going out, and sending debris through the trans. The shift solenoid may be clogged with the debris, causing the shift problems. The solenoid can be cleaned with brake cleaner spray. I removed my anti drainback valve when I replaced my converter.
#905 of 1029 Trans Code Question: 2005 Dodge Dakota
Aug 12, 2011 (1:40 pm)
I really do not know a lot about cars and fixing them. So that said, engine light came on this afternoon, got the codes read. They were P0700 and P0876. Which could be a number of different things going haywire in my truck. It says, "the TCM has detected that the UD pressure switch is in the wrong state for the current gear," and "received signal that the transaxle control module has a fault." Now the thing that I noticed: that the temperature thingy rose super slow; it kinda wants to stall, like its running cold or something; and sometimes when i put it in drive or reverse it doesn't go . . . like its in neutral. I'd like some help maybe narrowing it down a little so I don't get ripped off at the repair shop and if I should just stop driving it and tow it to the shop. (My husband is a great mechanic but he's 2000 miles away and I'd also like to impress him with a little knowledge about whats wrong with the truck!)
Thank y'all in advance . . .
#906 of 1029 Re: 2005 Dakota shifting problem [walt37]
Aug 13, 2011 (5:23 am)
I have a 2006 Dodge Dakota that I have only owned for a month. I took it back to the dealership three times for exactly the problem you're describing. I was sure it was having serious transmission problems. In the end they told me that's just the way the Dakota's act in the morning when you first shift into gear it hesitates.
How long have you owned your truck?
#907 of 1029 Re: Trans Code Question: 2005 Dodge Dakota [lil_tiger77]
Aug 14, 2011 (7:44 am)
Need more specific info. Is this a V6 or a V8?
You didn't mention if this was a 4x4 or a 2wd, but the codes the way I'm
interpret them is p0700 (TCM transmission Control Module) is a transmission
control system malfunction. Couldn't find the p0876 code ..are you sure you
read the code right? The dakota doesn't have a transaxle, if it's a 4x4 it
will have a transfer case to allow power to be transfered to the front wheels
for 4 wheel drive situations. The "U/D" could mean upshift/downshift. On the
46re there is a shift solenoid and pressure switch that detects fluid pressure
and returns the information to the PCM (Power Control Module) or computer.
You also mentioned that putting the transmission in gear (Drive or Reverse)
from neutral."it doesn't want to go"..that could be a sign that the neutral
safet switch is faulty.
How is the transmission shifting when you do get it to go into gear. Do the
RPMs go up high and you get a hardshift or does the transmission appear
to shift normally at some predetermine rpm based on your driving habits.
In some dakotas (at least mine 1998) the transmission shifting is controlled
by a pressure solenoid which is then controlled by the PCM. The shifting point
is determined by the TSS (transmission speed sensor) located on the transmission.
#908 of 1029 Re: Transmission, Linkage...? [sherry35]
Aug 14, 2011 (8:06 am)
I had the same problem with my 1998 V8 5.2L recently. Hard shifts and
no check engine code initially. Drove me nuts for a while as the rpm would
go way up to 3500rpm before it hard shifted. It was like that for a while and
acted up when the truck and tranny got hot. Tried changing out the TPS,
but that was not the problem. Finally the check engine code came on after several weeks P0720 (VSS sensor output low) VSS (Vehicle speed sensor
is actually a transmission speed sensor and provides input to the PCM to
calculate optimum shift points from 1-2 and 2-3.
After that stroke of luck, the VSS/TSS was changed out ($50 item) and
the transmission is shifting normally and smoothly.
I don't know what I would have had to do had I not got that code. It could
have been a costly repair at a transmission shop.
#909 of 1029 Re: Trans Code Question: 2005 Dodge Dakota [carverman]
Aug 15, 2011 (5:38 am)
Oh, I forgot those details. Sorry. I have a 4x4 quad cab automatic V8.
Yes, the RPM's do go up to 2 1/2 when I first start it and it usually idles down about one minute down the road. This happens either in drive or reverse, they both hesitate and get the higher RPM's when first started in the morning and again when I get out of work.
The dealership cleaned the throttle cable and replaced the celenoid. They also replaced the transmission filters.
#910 of 1029 Re: Trani problems [fedup25]
Aug 25, 2011 (10:13 pm)
Your starting in 3rd gear is a Governor solenoid and/or pressure sensor. I had the same problem with my 04 grand cherokee(42re tranny) and while I was in there I replaced both just as insurance parts cost about 150.00 with fluid and filter. With the 3.9 the 42re and in some cases the 44re was offered you can be sure by looking in your glove box on the sticker it will tell you everything from tranny,transfer case,brakes,paint code axle ratio and so on. The o/d light coming on after driving and not leaving 3rd is a limp mode the computer tells the tranny to do this to prevent and further damage to be done. Im not sure if the solenoid or sensor will cause this problem but it might be call a tranny shop and ask them most will be happy to answer your questions.
#911 of 1029 Re: Trani problems [fedup25]
Aug 26, 2011 (8:57 am)
I have the same problem thow i have 2 wheel drive can you tell me what the cure was,
#912 of 1029 Re: Trans Code Question: 2005 Dodge Dakota [kimberlyjacker]
Aug 29, 2011 (1:54 pm)
HuH? I don't understand what you mean "goes up to 2 1/2 when I first start it and idles down the road"
If you have the 46re transmission with the shift solenoid, the PCM
will shift from 1st to 2nd around 2500 rpm, then from 2nd to 3rd around
2200rpm. Once in 3rd gear, it will shift to OD and the rpms will drop down
to about 1500rpm as long as you are at low speeds. This is the way
my truck shifts. The shifting is done by the PCM as it learns your driving
habits. The sensor that determines this shifting is the TSS (Transmission
speed sensor or vehicle speed sensor) located on the transmission.