Quote:
Originally Posted by cumminsM11
You need to check if the problem happens when you try to acelerate or is it all the time. I have the same problem on my volvo, and FLD as well. I called Cummins and got many answers. The one I liked best was when the superviser said check the wire that goes from the VSS to the ECM, it could be bad since it was only happening when I went accelerate. The engine would twist under torque and I would lose my speedo display. As soon as I let off, the speedo would show normal. The Odometer will be out that much as well. As far as loosing power, that is because when the speedo reads below 10k/hr, and the RPM is over the setting for no VSS signal, the electronics go into a preprogrammed setting as if you did not have a working VSS, therefore no power. It took me while to figure out all these things. If you dont want it to lose power, go to Cummins or Freightliner or CAT, and have them reprogram so that the RPM will go to 1800 even if you don't have VSS at any time. Hope this helps.
Why not just find the
real problem and fix it the right way?