DOC4444 wrote:
Only people here (US) who have the "original" GDE TCM tune can really speak to what you are raising. We have only automatics here and the OEM programming is such that if you touch the throttle at 1200-1500 rpm, the TC instantly unlocks and the revs shoot up.
I have the TCM tune that locks the TC at 35 MPH. I have to say, applying any significant torque at that rpm range makes the whole vehicle vibrate quite strongly. Things do rattle that do not under any other conditions. Also, I do not think applying much throttle at that rpm is good for the health of the motor. (It is called "lugging".)
DOC
Thanks for the reply, just the jeep is not the first diesel manual 4x4 I have owned and no problem with those on this subject, But I would say it seems to be getting less and less since doing an engine flush and oil and filter change. I think the piston rings had locked up in the pistons with all that soot that gets into the oil. Was thinking of doing a compression test but looks a pain to get to the glow plugs to connect a gauge. I am guessing that you could compare blow by gas from the oil filler?