[quote:e62ac5828b="Mac712"]Warranty problem
2002 Dodge Ram 6 cyl Four Wheel Drive Automatic 64,000 miles
Dodge 2500 4x4 Cunnins AT Trans:
I have installed a BD valve body have a hypertech tuner. I have approximately 6000 miles on the new valve body with no problems. Lately, at 35 and 45 mph when the torque convertor is supposed to lock, it hunts instead. It locks over 40mph and again over 50 mph. Other than this there is no problem. I'm told that there could be a grounding problem amoung other things. My driver's side battery has issues with the negative terminal and corrosion. I've noticed that there are 2 additional wires connected to this pole and they may have some deep seated corrosion in the wire jackets. Are either of these part of a transmission circuit? Cleaning the terminal seemed to help the problem a little but it's still there.[/quote:e62ac5828b]
Check for a Service Bulletin on that - I had the exact same problem with my '98 Dodge/Cummins & it's the voltage going to the unit which controls the lock/unlock function. At the time nobody knew what it was (not even the factory engineers) but they finally came out with a S.B. on it & the voltage has to be exact - if I remember right, if it fluctuates more than 1.2 Volts, the lock/unlock function won't work right.
Also, buy yourself a battery teminal cleaning brush & a pack of those red/green felt gaskets to put on the battery teminals before you install the cables - yes, they really do work. You will still get some white, dusty corrosion on the negative terminals over time, but it takes a LOT longer to develop & it you brush it off when it starts to form, you'll be fine. Oh - don't let the dust get on your clothes, or there will be holes in them after the next wash (don't ask me how I know).
Sep 18, 2009 at 2:16 PM
