M/T - High Shift Effort In Cold Weather

89chrysler18

Models


1987-1990 B/AB, D/AD & N/AN Equipped With NP2500 5-Speed Manual Transmission


Subject

High Shift Effort In Cold Weather (Below 30~F, -1~ C)


Index


TRANSMISSION


Date

December 22, 1989


No.


21-27-89 REVISION A (C21-23-9) P-4365

This Bulletin supersedes Technical Service Bulletin No. 21-27-89, Dated 11/27/89, which should be removed from your files. This Bulletin revises the part number for the automatic transmission fluid used.

BODY CODE LEGEND

AB - DODGE RAM VAN/WAGON (REAR-WHEEL-DRIVE)
AD - DODGE RAM PICKUP/RAMCHARGER SPORT UTILITY (RWD, 4WD)
AN - DODGE DAKOTA/DAKOTA SPORT (RWD, 4WD)


SYMPTOM/CONDITION High transmission shift efforts are experienced in cold weather conditions (below 30~ F, -1~ C). Reduced efforts are experienced after operating temperature has been reached or during operation in warm weather conditions.


DIAGNOSIS If transmission shift efforts are found to be high upon start up of vehicle after cold soak and then efforts are reduced as operating temperatures are reached, high lubricant viscosity may be a contributing factor.

A change to Dexron II Automatic Transmission Fluid, will reduce cold weather condition shift efforts and will not sacrifice transmission durability. Recommended service fluid change intervals should still be followed:

Normal Service 37,999 Miles (60,000 km)
Severe Service 18,000 Miles (29,000 km)


PARTS REQUIRED

2 Quarts (1.91 Liters) Dexron II
Automatic Transmission Fluid PN 4467721
REPAIR PROCEDURE

This procedure involves draining and refilling the transmission.

1. Remove both filler and drain plugs and allow fluid to drain.

2. After fluid has drained completely. Replace drain plug and tighten to 30 ft.lbs. (41 N-m).

3. Fill transmission with Dexron II to the bottom of the filler hole (be sure vehicle is sitting in a level position).

4. Replace filler plug and tighten to 30 ft.lbs. (41 N-m).


POLICY: For information only