Crossmember/Alignment/Wheels/Tires - Vehicle Drifts Left
NO: 22-07-94GROUP: Tires and Wheels
DATE: Oct. 21, 1994
SUBJECT:
Tire Leads/Drifts Left
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 22-04-93 DATED JUN. 11, 1993 WHICH SHOULD BE NOTED IN YOUR FILES AND THE 1993 TECHNICAL SERVICE BULLETINS MANUAL (PUBLICATION NO. 81-699-94000). THIS REVISION INCLUDES ADDING 1994 AND 1995 MODEL VEHICLES, ADDS STEP 8 AND CHANGES THE FAILURE CODE. ALL REVISIONS ARE HIGHLIGHTED AND WITH **ASTERISKS**.
MODELS:
1991 - **1995** (AS) Town & Country/Caravan/Voyager
SYMPTOM/CONDITION:
Some vehicles may exhibit a tendency to drift left. Road surfaces have significant effect on drift tendencies.
DIAGNOSIS:
Test drive the vehicle on a road surface that slopes down to the right. On lanes that slope down to the right, the vehicle should track with little or no drift. On lanes that slope down to the left, a slight drift to the left is expected and normal.
If the vehicle exhibits a tendency to drift left while in lanes that slope to the right, the following diagnostic procedures should be followed:
A. Cross switch the front tire/wheel assemblies and re-evaluate the vehicle. If the drift is corrected, return the vehicle to the customer. If the drift to the left becomes worse, return the tire/wheel assemblies to their original positions and perform step B of the diagnosis. If the drift to the left is unchanged, perform step B of the diagnosis.
B. Check and adjust as necessary, the front alignment to the following preferred specifications:
Camber: 0.3 degree positive
Toe: 0.1 degree in.
If the vehicle still drifts left while in lanes that slope to the right, perform the repair procedure.
PARTS REQUIRED:
1 6502553 Screw and Washer Assembly
REPAIR PROCEDURE:
This bulletin involves repositioning the front crossmember.
1. Raise the vehicle on a hoist that leaves the front wheels unsupported.
2. Remove the left rear nut and shouldered stud attaching the front crossmember to the frame structure (Refer to the Illustration).
3. Install and finger tighten screw and washer assembly, P/N 6502553, at the left rear attachment position of the front crossmember.
4. Loosen the two front and right rear front crossmember attachments.
5. Using an appropriate pry bar at the left side of the front crossmember, rotate the front crossmember assembly forward using the right rear attachment as the pivot point for the rotation (looking at the front crossmember from underneath the vehicle, this will be a counterclockwise rotation). Rotate the crossmember until it contacts the left rear crossmember fastener.
6. Torque the four front crossmember fasteners to 110 ft.lbs. while the crossmember's position is held against the left rear fastener.
7. Check and adjust as necessary, the front alignment to the following preferred specifications:
Camber: 0.3 degree positive
Toe: 0.1 degree in.
**8. If the vehicle still exhibits a left lead condition, contact your zone office for further assistance.**
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No. 02-00-01-95 (Includes Alignment) 1.0 Hrs.
FAILURE CODE: **LL - Leads Left**