Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 2100601 | 03/16/2001 | 211699 | 621898 | Automatic transmission fluid usage atf+4. *tt *mj | 10/03/2001 |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| 210797 | 03/21/1997 | 6089000 | Information on transmission cooler reverse flushing with cooler bypass kit installed. *nlm | 01/11/2000 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 05/01/1995 | 1 | ||
| Tachometer failed. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| I have had trouble finding information on any upgrades, or modification that have been done to the np231d transfer case since date of manufacture on 10-89. i had to replace the range fork and range fork shift hub and am now experiencing difficulties with the replacements. if i can just get some feedback on this it would help me a great deal. thank you for your time and effort in this situation. *aky | |||
| 06/11/1998 | |||
| Consumer complainting of transmission overdrive system malfunction with only 67,000 miles of wear, dealer notified and will repair for a cost to the cosumer. | |||
| 1 | |||
| Transmission failed. | |||
| 02/25/1997 | 1 | 02/24/1996 | |
| Transmission failed with virtually no warning. transmission had been visually inspected and serviced as part of a service call; no signs of failure were detected. | |||
| 05/07/1996 | 7 | ||
| Transmission failed. *sd | |||
| 08/19/1991 | 9 | ||
| Automatic transmission downshifts when exceeding 55 mph. *dsh | |||
| 01/01/1994 | 1 | ||
| Transmission failed/replaced, replacement transmission leaks. (3rd vehicle from 478003) *skd | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - GEAR POSITION INDICATION (PRNDL) | |||
| 06/01/1994 | 1 | 01/09/1990 | |
| Transmission slipped, causing accident. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - PARK/NEUTRAL START SWITCH | |||
| 06/02/1994 | 1 | ||
| Vehicle jumped out of gear resulting in vehicle collision. | |||
| 12/06/1997 | 1 | ||
| Vehicle jumped out of park resulting in collision. | |||
| 01/10/1996 | |||
| The truck was idling in park. the truck slipped out of park into reverse and slammed into the house. *ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - TORQUE CONVERTER | |||
| 10/01/1992 | 1 | ||
| Torque converter replaced. *sd | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| The rear end axle was cracked . tt | |||
| POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT | |||
| 01/01/1995 | 1 | ||
| Axle shaft bearings faulty, causing vibrations. | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 01/01/1994 | 1 | ||
| Rear end vibration due to faulty differential. *dsh | |||
| 01/01/1995 | 1 | ||
| Differentials pinion and rings faulty, causing vibrations. | |||
| POWER TRAIN - MANUAL TRANSMISSION | |||
| 10/01/1990 | 5 | 02/01/1990 | |
| This vehicle has had problems with the transmission and drivetrain since it came off the lot. the original dealership was extremely helpful while we still lived in the area. however, when we moved to minnesota the first transmission failure occurred. 1st 2nd and 3rd gears were replaced, there was less than 7,000 mi on the truck. the second failure was less than a year later, again 1st 2nd and 3rd crapped out. this occurred again about 6-8 months later. i had asked the service shop to check the drivetrain several times, the response was that everything was within parameters. the whole system jumps and thumps when shifting gears. it also makes similar noises and jumping when going over small bumps or dips in the road. i have had the clutch, pressure plate and throw out bearing replaced at about 40,000 mi. this truck has not been used for towing or hauling any heavy loads. i read in the above list about another. *ak | |||
| 11/25/1996 | 3 | 01/08/1996 | |
| Transmission failed three times. | |||