engine rpm

arm40 · August 1, 2002

Had to put truck in for service 2 weeks ago. I have a 2002 3500 4x4 cc 8.1 ZF6 6 speed 4.10 rear . Here the problme when shifting gears between 2 and 3 engine would rev to 3000 rpm for about 10 to 15 sec when clutch was engaged Then would be ok for a short time. this is what dealer came up with. scan system for codes,no codes, no bulletins or pts. tech drove home several nights, condition would occur 1 time going home and sometimes 1 time back, called tech assist, told to disconnect battery overnight reconnect and drive , drive home 2 more nights after doing so condition did not aeoccur.according to enginer, may have beenlugging engine insted of downingshifting and computer learned saver condition and is the way it is beins driven, spoke to tech assist again after condition didnt reoccur, nothing more we can do closed case .if anybody else had this happen let me know . had truck 10 days still not sure it is fixed has not happend sence i got it back. arm40

arm40 · August 1, 2002

did it to me again tonight. if anybody has some input please let me know thasks. will be calling dealer tomm to see what can be done. this is the 4th time for it. arm40

CMNTMXR81 · August 2, 2002

I guess I'm a little confused, is this before you shift or after you've shifted and let the clutch out? If it's after, it could simply be clutch slippage which won't show up with a code.

RedDog · August 2, 2002

I don't have your answer. I'm just glad to see a dually with a 6 SPEED!!!!!

arm40 · August 2, 2002

no when you have the clutch to the floor shift from 2 to 3 . you go to 3 just before you lut the clutch out will rev to 3000 rpm for 15 to 30 sec then it will go back to about 600 rpm. then you can let clutch out. this is what dealer told me tonight. idle at 1500 or so is normal (called sail on anybody know what this is) have pictures you can go look at bfore runningboards put on here is the sight http://www.picturetrail.com/Roozers