M/T - Whine Under Acceleration

REFERENCE:
NTB97-009A

CLASSIFICATION:
MT97-002A

DATE:
June 15, 1998

TITLE:
FS5R30A TRANSMISSION WHINE

APPLIED VEHICLES:
1987-1995 Pathfinder (WD21) 4WD only
1986.5-1995 Truck (D21) 4WD only

APPLIED DATE:
Transmissions built before April 1,1996

APPLIED ENGINE #:
VG30

APPLIED TRANSMISSION #:
Transmissions built before R30A-2400001

This amended version of NTB97-009 updates the Parts Information and the Claims Information. Please discard all paper copies of NTB97-009.

SERVICE INFORMATION

If an R30A transmission exhibits a whine noise while driving in all forward gears except 4th which is more pronounced at slow speeds, the incident may be caused by lack of lubrication to the main and counter drive gears. This noise may occur particularly on acceleration and/or climbing hills.

A countermeasure transmission case is available to resolve this incident.

SERVICE PROCEDURE

1. Verify the incident occurs under the driving conditions described above.

2. If the noise is verified, disassemble the transmission.

3. Replace the counter and main gears with new parts. Refer to the parts catalog.

4. Install a countermeasure transmission case, P/N 32101-01G11 (former P/N 32101-01G10). When installing the transmission case, note the following changes to the transmission case and fluid levels:

- The transmission oil level has been increased from 3.6 ± 0.1 L to 5.1 ± 0.1 L (an increase of 1.5 L) to prevent lack of lubrication.

Figure 1:

- The oil filler plug has been relocated to compensate for the oil level increase (refer to Figure 1).

- The oil filler boss shape has been changed.

CAUTION: When installing the sub-gear and counter gear, make sure they are correctly aligned. Do not scratch any of the gear contact surfaces.





PARTS INFORMATION

CLAIMS INFORMATION





If applicable, submit a Primary Failed Part (PP) line using the claims coding as shown above.