CAMPAIGN: POWER STEERING GEAR LASH ADJUSTING SCREW. GMC Truck GMC Suburban

PLEASE RETAIN THIS COPY FOR YOUR FILE. YELLOW CAMPAIGN BULLETIN AND OWNER LETTER WILL NOT BE SENT FOR THIS CAMPAIGN.

THE FOLLOWING WAS SENT VIA DCS/EMS ON MARCH 3, 1992.

A T T E N T I 0 N: S E R V I C E M A N A G E R

NUMBER: 92CO9

GROUP: 3B - STEERING

SUBJECT: POWER STEERING GEAR LASH ADJUSTING SCREW

MODELS: CERTAIN 1992 C/K VEHICLES (ALL PLANTS) AND G VEHICLES BUILT AT SCARBOROUGH ASSEMBLY (VIN 4)

General Motors has determined that certain 1992 C/K and G vehicles were built with a power steering gear lash adjusting screw which does not meet specifications.

To check if the screw meets specifications, the screw should be subjected to a 25 lb. ft. (34 N.m.) torque. If the screw does not pass this test, the entire gear assembly must be replaced.

VEHICLES INVOLVED

Involved are all 1992 C/K and G vehicles with power steering built within the following VIN breakpoints:

VIN MODEL YEAR MODEL BUILD PLANT FROM TO ---------- ----- ----------- ----- ---- 1992 C/K Pontiac East (E) NE527785 NE529098 Fort Wayne (Z) NZ525402 NZ526191 Janesville (J) NJ706600 NJ707300 Oshawa (1) N1534174 N1534998 1992 G Scarborough (4) N4516444 N4516867

DEALER CAMPAIGN RESPONSIBILITY

Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward. Dealers are to correct all affected vehicles in new and used vehicle stock prior to their sale.

Should vehicles be sold inadvertently from your new vehicle inventory, prior to repair, owners are to be contacted by the dealer and arrangements made to make the required correction according to instructions contained in this bulletin.

OWNER NOTIFICATION

There will be no owner letter sent out with this campaign. It is anticipated the vehicles will still be in your new vehicle inventory and should be repaired prior to retail sale. If a unit has been retailed, in order to maintain customer satisfaction, contact the owner immediately and arrange to correct this condition on his/her vehicle.

SERVICE PROCEDURE

To check if the power steering gear lash adjusting screw meets specifications:

1. Raise the hood.

2. Using a 5/8 inch socket and torque wrench, apply a 25 lb. ft. (34 N.m.) torque to the Lash Adjuster Nut. This nut is on the Adjuster Screw which is located on the center of the steering gear side cover.

3. If the screw does not break go to step 4.

If the screw breaks, replace the power steering gear using the procedure in the appropriate Service Manual section 3Bl under "STEERING GEAR REPLACEMENT".

4. Install a Campaign Identification Label.

SERVICE PARTS INFORMATION

IMPORTANT: THE CHANCES OF THE BOLT BREAKING ARE VERY LOW. DO NOT ORDER A STEERING GEAR UNLESS THE BOLT BREAKS.

If replacement of the steering gear is necessary, see the appropriate parts manual for part numbers. Power steering fluid may be needed if the steering gear is replaced.

PART NUMBER DESCRIPTION QTY ----------- ----------- ---- 01050017 Power Steering Fluid (1 Qt) As Required

WARRANTY INFORMATION

Dealers should submit a warranty claim on each vehicle completed under this campaign.

LABOR OPERATION *TIME TROUBLE **NET NUMBER DESCRIPTION MODELS ALLOWANCE CODE AMOUNT --------- ----------- ------ --------- ------- ------ V7350 Check For Proper All 0.2 Hr 96 Bolt Specs.

V7351 Replace Power C/K 1.0 Hr 6 $#.## Steering Gear G 1.1 Hr 96

Add: 0.1 hrs for vehicles equipped with a hydraulic brake booster.

* For dealer to receive Administrative Time Allowance associated with this campaign, add 0.1 hour to the Labor Operation Time Allowance.

** The $#.## identified in the "Net Amount column represents the cost plus 30% for fluids used in conjunction with Labor Operation V7351.

CAMPAIGN IDENTIFICATION LABEL

Each vehicle corrected in accordance with the instructions outlined in this product campaign DCS will require a "Campaign Identification Label". Each label provides a space to include the campaign number and five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or ball point pen.

Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.

Apply the "Campaign Identification Label" only on a clean, dry surface.

ADMINISTRATIVE PROCEDURE

Procedures covering this campaign are outlined in Section V of your dealership's "GM Truck Claims Processing Manual" #P 9119.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.