Cummins Diesel Forum banner
Cancel

68rfe problems...P0869 code

27742 Views 13 Replies 3 Participants Last post by  TransEngineer, 
S
Hi all...I had posted earlier this year about possible converter drainback problems I had with about 3K miles on the clock (surging through the brakes in reverse after startup). Anyways, the possible converter drainback problem has been intermittent, and in the last couple weeks I have been having some new issues. My truck has grinded into 1st gear when coming to a stop (intermittent problem), and also skips from 1-3rd gear from a stop (also intermittent). Today my truck threw a P0869 code (using the on-off key procedure). I believe this is a "governor pressure sensor volts too low"? Took the truck to Autozone and code read "incorrect 2nd gear ratio". Just trying to add all this up before going taking the truck to the dealer...it has already been there once with no fix on the possible drainback issue. Any experience with this would be a help...missing my NV5600 already:(
Reply
Save
Like
  • Like
Reactions: 1
1 - 3 of 14 Posts
EVRE
Update?
:subscribe:
Reply
Save
Like
EVRE
I requested a copy of the mechanics notes. Sounds very suspiciously like what happen with my truck.

VERIFIED LINE PRESSURE AT 85 PSI / SHOULD BE PSI 125 DESIRED -- PAN REMOVED AND HAD ALUMINUM IN TRANS - REMOVED AND DISASSEMBLED FOUND TORQUE CONVERTER STATOR FAILED - DAMAGED PUMP AND PRESSURE REGULATOR WHICH WOULD STICK -- SERVICED VALVE BODY FLUSHED COOLER AND LINES - REINSTALLED W/ NEW TORQUE CONVERTER AND PUMP KIT - NEW FILTERS / PARTS AS LISTED - NEW FLUID - TESTDRIVEN - ROADTESTED GOOD
1 RL109671AF CONVERTER-TORQUE
1 RL029305AC PUMP KIT - TRANSMISSION
1 5179267AC FILTERPKG - TRANSMISSION OIL
1 5013470AD 4X4 FILTE - TRANSMISSION OIL
1 5010884AA *SEALER
14 68055894AA *FLUID-ATF+4
Click to expand...
Reply
Save
Like
EVRE
Slomo said:
The dealer said there were a few codes stored in the computer...he did not name what they were, but that is where the they got the "low line pressure" code.

There was metal in the pan, and they were not sure what caused the low line pressure. I am guessing it was similar to something that happened in EVRE's case. I am just concerned now with whatever junk was in the bottom of the pan...how do I know that there is not any damage from the metal floating around in the transmission, or anything left that will cause damage in the future?

It is really tough to get good answers from dealers / service managers around here. Unfortunately we are in a pretty rural area, and the service really suffers around here. Asking questions pretty much gets you an "I don't care" attitude...sad, but that's the way it has been at more than one dealer around here
Click to expand...
This too has been my greatest concern. If the metal in the pan was able to bork the pump and make the pressure regulator sticky.. that means it was getting by the filter some how? If that is true, then I'm very concerned for the bearings and other wearing surfaces. Also, the clutches, they work now but how well did they fair with too low of pressure being applied to them? I had done more then a few good romps on her while passing or getting out on the highway.

TransEngineer, what do you think?
Reply
Save
Like
1 - 3 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Cummins Diesel Forum
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
03-07 Performance Parts Discussion 03-07 Powertrain 2013-2018 General Discussion 98.5-02 Powertrain 98.5-02 Performance Parts Discussion
Top