Instruments - Rattle/Fuel & Temp Gauge Hard to See

BULLETIN NUMBER:
91-8C-192(A)

SECTION:
8C

NUMBER:
1

CORPORATE
REFERENCE NUMBER:
268303R

DATE:
November 1992



SUBJECT:
RATTLE IN INSTRUMENT CLUSTER, UNABLE TO SEE FUEL/ TEMPERATURE GAUGES (INSTALL 1992 CLUSTER PARTS/TRIM PLATE)

MODELS:
1987-91 G-VANS


THIS BULLETIN CANCELS AND REPLACES GMC TRUCK SERVICE BULLETIN 91-8C-192, DATED SEPTEMBER 1992, TO REVISE THE SERVICE PROCEDURE AND PARTS SECTION. ALL COPIES OF 91-8C-192 SHOULD BE DESTROYED.






Some owners of 1987-91 G-Vans may comment on a rattle in the instrument cluster or more specifically the odometer reset rod hitting the instrument cluster lens. In addition, some owners may comment on not being able to clearly and easily see the fuel and temperature gauges. The above conditions may be corrected by replacing the Trim Panel (bezel), Cluster Retainer, and Lens with a 1992 Trim Panel (bezel), Cluster Retainer, and Lens. The new Trim Panel shown in (Figure 1) is distinguished by its large rectangular opening as compared to prior years tunnel openings. The new lens is distinguished by its concave rectangular shape. The new retainer has directional arrows upper center positioned for the turn signal indicators. Also, the new retainer no longer uses a metal upper mounting bracket.

SERVICE PROCEDURE
Removal of the Cluster and Trim Panel (Bezel)

NOTE:
In the following procedure the transmission shift lever will have to be maneuvered as necessary to provide clearance to the screws.

1. Block the vehicle's wheels.

2. Disconnect the negative battery cable.

3. Tilt the steering column fully down, if possible.

4. Remove the Trim Panel (Bezel) as follows:

^ Remove the rear A/C and heater control knobs, if applicable, by placing each knob in the OFF position and pulling it from its shaft.



^ Remove six screws, three across the top front and three at the bottom of the panel.

^ Lift off the panel.

5. Remove the Cluster.

^ Remove the two 10 mm screws at the lower corners of the cluster.

^ Disconnect the speedometer cable, if applicable.

^ Pull the cluster forward and disconnect the wiring connector on the back of the cluster.

6. Removal of the Old Case Retainer, Bracket, Lens.





^ Position the cluster with the lens face down and remove the (5) six-point torx screws from the backplate of the cluster, and remove the retainer (Figure 2).

^ Remove the two upper screws that hold the mounting bracket to the retainer, and the two lower screws that hold the lens to the front of the retainer case and discard the lens and the bracket.

^ Remove the two turn signal filter plugs from the retainer case and save discard the retainer case.

Installation of the New Case Retainer, Lens, and Trim Panel

1. Case Retainer Installation





^ Install the two turn signal plugs into the two upper holes of the cluster on either side of the fuel gauge (Figure 3).



^ Install the new case retainer p/n 16160907, turn the case so that the gauges are face down, and install the (5) six point torx screws into the backplate of the cluster.

^ Turn the case over and insert the lower tabs of the new lens p/n 16160906 into the lower slots of the case retainer.

^ Install two torx screws to secure the lens to the upper portion of the case retainer.

2. Install Cluster.

^ Re-connect the speedometer cable, if applicable.

^ Position the cluster assembly at the Instrument Panel (IP) opening and install the wiring connector.

^ Place the cluster in the IP opening and install the two 10 mm screws. Torque the screws to 2.8 N-m (2 lbs.ft.).

3. Trim Plate (Bezel) Installation.

^ Position the trim plate on the IP and cluster. (See Service Parts Information for the correct Trim Plate)

^ Install the six screws. Torque the screws to 1.4 N-m (1 lbs.ft.).

^ Install the rear A/C and heater control knobs by placing the knobs in the OFF position and pushing them onto the shaft.

4. Connect the negative battery cable.

5. Remove the wheel blocks.






SERVICE PARTS INFORMATION



Parts are currently available from GMSPO.

WARRANTY INFORMATION
For vehicles repaired under warranty use:

Labor Description Labor
Operation Time
N-4120 Trim Plate Replace 0.4 hr.
N-4180 Cluster Assembly Replace 0.6 hr.