MrMopar64 wrote:
The similar issues that I've had with the engines here at RHIT are from a different application, but the same situations can be applied to the KJ program as well.
You have to remember that the TCM has the ability to command a torque reduction to the engine's ECU, so it's not always the engine's fault that it's not performing as it should. The 545RFE from my experience has been very hit and miss - it either works great with no problems or there's an issue of some sort.
Over the summer we had some similar issues with the new JK Wranglers that are using the new 2.8L VM with the 545RFE for ATX applications...while out West on a trip, you'd be driving along, and all of a sudden the transmission would just drag the engine down to zero RPM and it'd die in the middle of the freeway. First the TC was replaced, vehicle sent back out on test - same problem still. Powertrain finally replaced the transmission with a new one, and the torque converter with a re-design piece that had upgraded lock-up clutches in it and the problems went away and never came back. I'm guessing that the TC's for the new TSB are these pieces - definitely get it done ASAP.
My feeling is that the situation isn't limp home because if so, the MIL/Check Engine light should be on per OBD guidelines - most likely an issue with the TCM or the physical trans itself.
Thanks, I REALLY appreciate the insight and sorry if I came off harsh before. I have high hopes for the F37 recall/cust. satisfaction work. It may be a bummer to lose some of the torque but safety is first, having the rest of the CRD last as long as it seems the VM will comes second and tire burning torque for me last.
Couple questions for you.
How will those that have gone the chip route be affected by F37?
Given regular and good preventive maintenance do you feel the VM 2.8 will significantlly outlast the 3.7 gass engine?