M/T - Incomplete Engagement of 1ST/2ND Gear
NUMBER: 21-005-01GROUP: Transmission
DATE: Mar. 02, 2001
SUBJECT:
Partial Engagement Of First And/Or Second Gear
OVERVIEW:
This bulletin involves replacement of the shift shaft lever to allow the addition of a new detent spring and plunger.
MODELS:
1999 - 2000 (AN) Dakota
1999 - 2000 (BR/BE) Ram Truck
2000 (TJ) Wrangler
2000 (XJ) Cherokee
NOTE:
THIS BULLETIN APPLIES TO WRANGLER OR CHEROKEE VEHICLES EQUIPPED WITH A NV3550 MANUAL TRANSMISSION, AND TO DAKOTA OR RAM TRUCK VEHICLES EQUIPPED WITH A NV3500 MANUAL TRANSMISSION THAT WERE BUILT ON OR BETWEEN NOVEMBER 20, 1999 (MDH112OXX) AND MAY 17, 2000 (MDHO517XX).
SYMPTOM/CONDITION:
The customer may complain that first or second gear may not stay fully engaged. This condition may often occur once the gear has been selected and as the clutch is initially released. This condition may be intermittent in its occurrence.
DIAGNOSIS:
1. Verify that full motion of the shift lever is allowed by the gear shift lever boot, the inner gear shift boot, and the console. The boots or console may be out of place and/or position.
2. If full motion of the transmission shift lever has been verified, and the customer has complained of the above condition, then perform the Repair Procedure.
NOTE:
SEVERAL ITEMS MAY CAUSE A SIMILAR CONDITION, BUT REQUIRE TRANSMISSION DISASSEMBLY TO DIAGNOSE. THE TECHNICIAN SHOULD INSPECT THE DISASSEMBLED TRANSMISSION FOR BROKEN TOOTH POINTS, A BENT OR FRACTURED SHIFT FORK, OR FOR PARTS WHICH HAVE FAILED DUE LACK OF LUBRICATION. THE REPAIR PROCEDURE FOR THIS TSB INVOLVES ONLY THE REPLACEMENT OF THE SHIFT SHAFT LEVER AND THE INSTALLATION OF THE DETENT SPRING AND PLUNGER.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
1. Using the appropriate year Service Manual, Group 21 Transmissions, remove and disassemble the transmission to the point where the front transmission housing has been removed.
2. Remove the old shift shaft lever.
3. Install the revised shift shaft lever p/n 05072248AA.
4. Verity that the notches in the shift fork arms are aligned.
5. Rotate the shift shaft lever and bushing downward (out of the fork arms), to expose the detent bore in the new shift shaft lever (Fig. 1).
6. Lubricate the detent spring, detent plunger, and detent bore with transmission fluid, p/n 04874464.
7. Install the detent spring, p/n 04741137, into the shift shaft lever detent bore.
8. Install the detent plunger, p/n 05013348AA, on top of the detent spring and compress both parts into the bore (Fig. 2).
9. Press and hold the detent plunger in the lever bore. Then carefully rotate the lever upward into the shift fork arm notches. Be sure the detent plunger is seated in the fork arms before proceeding.
10. Following the Service Manual instructions, complete the assembly of the transmission and install the transmission in the vehicle.
11. Verify the correct transmission fluid level.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: