tow haul issues
Thread Starter
|
Registered User
Joined: Jan 2013
Posts: 2
Likes: 0
tow haul issues
I have an 09 dodge dakota and im having issues with my tow haul. Itll kick on and off rapidly doesn't matter the speed. This doesn't happen all the time but more whenever there's mouisture in the air. Which leads to believe I have a corroded wire or connection point somewhere? Does anyone have any advice or maybe know how the wiring for the tow haul is done?
Champion
Joined: Jul 2011
Posts: 3,053
Likes: 28
From: Mopar HQ
I have an 09 dodge dakota and im having issues with my tow haul. Itll kick on and off rapidly doesn't matter the speed. This doesn't happen all the time but more whenever there's mouisture in the air. Which leads to believe I have a corroded wire or connection point somewhere? Does anyone have any advice or maybe know how the wiring for the tow haul is done?
Odell,
There was one TSB that involved a flash of the PCM that may pertain to the issue you are experiencing. It's the only one I could find regarding shifting functionality. If you are the original owner it should be covered under the powertrain warranty. See below.
NUMBER: 18-011-12
GROUP: Vehicle Performance
DATE: March 15, 2012
SUBJECT:
Flash: MIL Illumination With Transmission And Driveability Improvements
OVERVIEW:
This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new
software.
MODELS:
2009 (HB) Durango
2009 (HG) Aspen
2010 (DJ) Ram 2500 Pickup
2009 - 2010 (DS) Ram 1500 Pickup
2009 - 2010 (DH) Ram 2500 Pickup
2009 - 2010 (DC) Ram 3500 Cab Chassis
2009 - 2010 (ND) Dakota
NOTE: This Service Bulletin applies to HB/HG/DJ/DS/DH/DC/ND vehicles equipped
with a 3.7L, 4.7L or 5.7L engine (Sales Code EKG, EVE, EZC, EZD or EZH) and
a 4 speed 42RLE or 5 speed 545RFE or 6 speed 68RFE automatic
transmission (Sales Code DGV, DGQ or DG7).
The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon
further investigation the Technician may find that any of the following Diagnostic Trouble
Codes (DTC's) have been set.
i. P050D - Cold Start Rough Idle
ii. P2181 - Cooling System Performance has been set
iii. P0935 - Line Pressure Sensor Circuit High All RFE transmissions
iv. P0300 through P0308 - Multiple and Single Cylinder Misfire. This condition can
occur when the vehicle is started cold and the driver immediately places vehicle in
drive and applies heavy throttle.
Driveability and Transmission improvements are also included with this software
release. These changes consist of the following:
a. Enhanced clutch protection for more robust torque management during repeated
fore and aft movement (rocking vehicle) all engines.
b. A revised torque convertor lockup schedule that will reduce transmission
temperatures in Tow/Cruise mode All models equipped with RFE transmission.
c. A Clunk sound or feel a shudder when the cruise control resume switch is pressed.
This condition is most noticeable after the brakes were pressed to cancel cruise
control and then the resume switch is pressed All models equipped with RFE
transmission.
d. A shudder or shaking feeling when a wide open throttle (WOT) event is performed
by the customer. This is most noticeable after the transmission downshifts during the
WOT event. This condition will stop once the transmission upshifts All models
equipped with RFE transmission.
e. A shudder or shaking feeling when accelerating from a stop under moderate throttle.
This condition will stop once the transmission upshifts All models equipped with
RFE transmission.
f. A shudder or shaking feeling after the transmission downshifts. This condition will
stop once the RPM's drops All models equipped with RFE transmission.
g. Harsh or noisy natural to reverse shiftsAll models equipped with RFE
transmission.
h. Harsh 4-3 downshifts. This condition happens when there is no throttle applied and
the vehicle is coasting down.All models equipped with RFE transmission.
i. Harsh 1-2 upshifts. This condition happens under moderate or heavy throttle
conditions All models equipped with RFE transmission.
j. Engine knock condition. This condition could happen when a wide open throttle
(WOT) event is performed or cruising at 5400 RPM or above All models equipped
with RFE transmission.
k. Hard start or long crank condition at 0° F (-17° C).all 5.7L DS and DJ models
equipped with RFE transmission.
All Star
Joined: Aug 2011
Posts: 759
Likes: 18
From: Ottawa, Ontario Canada
It involves hooking the truck up to a computer and updating the software/firmware. As long as the the truck is road-worthy it should be a free service!
Record Breaker
Joined: Jul 2007
Posts: 2,040
Likes: 1
From:
"mouisture in the air" ? sounds like the dist cap has moisture in the cap. ALLWAYS plug the cap vent, with JB-weld. took me 5 years to understand that. that is if you have a dist cap.
Last edited by moe7404; Jan 31, 2013 at 07:30 PM.
All Star
Joined: Aug 2011
Posts: 759
Likes: 18
From: Ottawa, Ontario Canada
There haven't been distributers in these things for years . . .