TCC Solenoid - Surge at Steady Cruise

88chrysler04

Models


1987-1988 C-K-E-GH-J-P Body Equipped With 2.5L & 3.0L Engine

1987-1988 S Body Equipped With 3.0L Engine


Subject

Lock-Up Torque Convertor Surge/ Buck at 35-55 MPH


Index

DRIVEABILITY


Date

March 28, 1988


No.

18-03-88 REVISION A


P-1167 (C18-06)
This bulletin replaces Technical Service Bulletin 18-13-87 and 18-03-88 which should be removed from your files. A required revision has been made to the warranty labor operation number. This new labor operation number becomes effective with the issuance of this bulletin March 28, 1988.

SYMPTOM/CONDITION

A surge may be noticed at steady cruising speeds above 35 mph. In addition, bucking may occur under light deceleration conditions, especially when cresting a hill.

DIAGNOSIS

The above conditions can be diagnosed by disconnecting the transmission lock-up torque converter solenoid, and driving the vehicle under the above conditions. If the problem goes away, follow the repair procedure below. If either problem is still present, refer to the Diagnostic Test Procedure for correction.

PARTS REQUIRED

Driveability Kit PN 4419447
Consists of:

1 Wiring Jumper Assembly PN 4400768
1 Lock-Up Solenoid Cap PN 4419446
2 Tie Wrap PN 6015756
1 Authorized Modification Label PN 4275086

REPAIR PROCEDURE

The following procedure involves disconnecting the lock-up torque convertor solenoid. The customer should be advised that after this repair is performed, a loss in fuel economy of 1 to 2 miles per gallon may be noticed, depending on driving conditions.

FIGURE A:

FIGURE B:

1. Disconnect the wiring connector from the lock-up torque convertor solenoid. This is located directly behind the transmission dip stick (Figures A and B).

2. Install wiring jumper assembly, PN 4400768, to the lock-up solenoid wiring connector removed in Step 1.

FIGURE A:

3. C-K-E-G-H-J-P BODY (2.5L) - Reroute new wiring assembly (jumper plugged into original lock-up wiring) under battery so that it loops back along original lock-up wiring. Tie wrap looped harness to original lock-up wiring in two places, using supplied tie wrap, PN 6015756 (Figure A).

FIGURE B:

C & S BODY (3.0L) - Reroute new wiring assembly (jumper plugged into original lock-up wiring) so that it loops back along original lock-up wiring. Tie wrap looped harness to original lock-up wiring in two places, using tie wrap, PN 6015756 (Figure B).

4. Install supplied cap, PN 4419446, onto lock-up solenoid.

FIGURE C:

5. Type information on Authorized Modification Label, PN 4275086, as shown in Figure C and attach near VECI label.
POLICY: Reimbursable within the provisions of the warranty

TIME ALLOWANCE:
Labor Operation No. 21-96-01-90 . . . . . . . . . . . 0.2 Hrs.

FAILURE CODE: AM - Authorized Modification