DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > 3RD Generation Dodge Ram 2002 to 2008 Dodge Ram Trucks > Powertrain > 5.7L V8 Specific Topics


Notices


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 01-31-2010, 12:42 AM
nwtram nwtram is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2010
Posts: 3
Gender: Male
Vehicle: 2003 Dodge Ram Quad Cab 4x4
Trim Level: SLT
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
nwtram is on a distinguished road
Default Tranny codes when cold

Newbie here...Don't know if anyone else is having the same fault with a 2003 Dodge 1500 Hemi (5 speed auto).

I live in an area with extreme cold in the winter and have been having intermittent tranny codes (since 2007) when temps are about -30 C (-22 F) and colder. The truck is plugged in and warmed up for up to 5 minutes before driving and on occasion I get various codes such as P0845, P0870, P0987, P0841. Sometimes they occur as single code, sometimes in various combinations. They all seem to be related to tranny fluid pressure sensor/switch circuits. After the code(s) occur there is a sluggish feel to the acceleration but when the engine is stopped and restarted a few minutes later, the performance returns to normal. Dealer says problem is due to a fault with the wiring harness. Anyone with ideas?
Appreciate any feedback. Thanks in advance.
Reply With Quote
Sponsored links
  #2  
Old 01-31-2010, 09:11 AM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 43
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 14
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

Unfortunately the only advice I can give you is to check the fluid level and drop the pan and see if perhaps the filter is clogged causing a low pressure issue. I'm having a problem with the wiring diagnosis since it only does it on an extremely cold start up. All the codes you mentioned are low pressure related. Have you had the trans serviced lately?
Reply With Quote
  #3  
Old 01-31-2010, 09:40 AM
nwtram nwtram is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2010
Posts: 3
Gender: Male
Vehicle: 2003 Dodge Ram Quad Cab 4x4
Trim Level: SLT
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
nwtram is on a distinguished road
Default

The tranny was serviced in mid 2007 by the dealer.

The dealer has, by a process of elimination, decided that the TCM (Control Module) is not at fault and I do agree with this since the fault also occurred with a replacement module installed. They came to the conclusion that the transmission wiring harness was the problem when they switched some wiring harness points around and generated new codes: P0765 Shift Solenoid D, P0750 Shift Solenoid A, P0720 Output Shaft Speed Sensor Circuit,
P0715 Tubing/Input Shaft Speed Sensor Circuit, P1794 Speeds Error: Speed sensor ground.

While driving with these harness wires switched around the transmission operated extremely poorly, hesitating, over-revving before clunking into the next gear, etc. and the problem went from only occurring in the cold to being chronic for the week the wires were switched. Now the wiring harness is back to the proper set up and the problem is only happening in the cold. The dealer has given up troubleshooting a tranny repair and says I need to replace the wiring harness. Their idea is that, during the cold, there is shrinkage in the wire(s) and/or electrical connectors.
Reply With Quote
  #4  
Old 01-31-2010, 09:55 AM
RamTech's Avatar
RamTech RamTech is offline
Dodge Ram Forum Senior Member!

 
Join Date: Nov 2009
Location: Johnson City, TN
Age: 43
Posts: 12,120
Gender: Male
Vehicle: 2004 Dakota Club Cab 4X4
Trim Level: SXT
Color: Bright Silver
Engine: 2002-2008 226ci (3.7L) Magnum/PowerTech V6 215hp 235lb/ft
Rep Power: 14
Rep:1824
RamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant futureRamTech has a brilliant future
Default

If it were throwing codes for high/low voltages or open/shorted circuits I would have a lot easier time buying into that theory although I can't entirely discount it either.
Reply With Quote
  #5  
Old 01-31-2010, 03:23 PM
nwtram nwtram is offline
Dodge Ram Forum Newcomer
 
Join Date: Jan 2010
Posts: 3
Gender: Male
Vehicle: 2003 Dodge Ram Quad Cab 4x4
Trim Level: SLT
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
nwtram is on a distinguished road
Default

One of the problems I have with the dealer diags is that, when troubleshooting, they moved some wires in the harness and the problem went from being intermittent and cold related to being chronic with different codes. Also, should note that the fault only shows up in winter (never in summer) after starting and driving the vehicle in the morning after it has sat outside overnight. There is a slight hesitation in shifting from first to second and then a fault code registers as a MIL (Malfunction Indicator). If the codes do not show up after a cold morning start, then we are good for the rest of the day.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 10:30 AM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum