CAMPAIGN: ENGINE OIL COOLER FILTER ADAPTER
Models: 1988-89 GMC & Chevrolet K30 Trucks with 7.4L 454 CID V8 Engine (RPO L19, VIN Code N) and Engine Oil Cooler Option (RPO KC4)
TO: ALL AFFECTED DEALERS:
General Motors of Canada has determined that certain 1988-89 GMC and Chevrolet K30 Series Trucks with 7.4L V8 engine and engine oil cooler option may have oil cooler line/filter adapters that were machined incorrectly. These adapters allow oil to bypass the engine oil cooler and/or the engine oil filter.
To correct this condition, it will be necessary to replace the engine oil cooler line/filter adapter. In addition, new oil and oil filter will be installed.
VEHICLES INVOLVED:
Involved are certain 1988-89 GMC and Chevrolet K30 Trucks built within the following VIN breakpoints:
Model/Year Plant From Through ---------- ----- ---- ------- 1988 K30 Chev. Oshawa J1218140 EOP 1988 K30 Chev. Pontiac East JE163993 JE211029 1989 K30 Chev. Oshawa SOP K1104205 1989 K30 Chev. Pontiac East KE100451 KE107905 1988 K30 GMC Oshawa J1545107 EOP 1988 K30 GMC Pontiac East JE522372 JE538020 1989 K30 GMC Oshawa SOP K1501521 1989 K30 GMC Pontiac East SOP KE502223
All affected vehicles have been identified by the VIN listing provided to involved Dealers with this bulletin. Any Dealer not receiving a listing was not shipped any of the affected vehicles.
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.
Whenever a vehicle subject to this campaign i s taken into your new or used vehicle inventory, or it is in your Dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the Dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.
CAMPAIGN PROCEDURE:
Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.
OWNER NOTIFICATION:
All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors. The listings provided are for campaign activity only and should not be used for any other purpose.
PARTS INFORMATION:
Parts required to complete this campaign should be ordered through regular channels, as follows:
Part Number Description Quantity/Vehicle ----------- ----------- ----------------- 14092393 Oil Cooler Line/Filter Adapter 1 14092399 Oil Cooler Line/Filter Adapter 1 Seal
14015353 Oil Cooler Line/Filter Adapter 1 Sea 1
6438384 Oil Filter (PF35) 1
*** NOTE: Order parts based upon attached listing of involved vehicle.
PARTS AND LABOUR CLAIM INFORMATION:
Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card, RAPID terminal or DCS transmission in accordance with the following:
Repair Code Description Time Allowance ----------- ----------- ---------------- 2A Adapter, Engine Oil 0.9 Cooler - Replace Condition "A" Exists *
3A Adapter, Engine Oil 0.9 Cooler - Replace Condition "B" Exists *
4A Adapter, Engine Oil 0.9 Cooler - Replace Condition "C" Exists
* An allowance of $13.00 has been included for engine oil and sealant.
Time allowance includes 0.1 hour for Dealer administrative detail associated with this campaign. Parts credit will be based on Dealer net plus 30% to cover parts handling.
SERVICE PROCEDURE:
1. Drain crankcase.
2. Remove oil filter.
3. Disconnect oil cooler pipes at pipe bracket (attached to engine mount).
4. Disconnect oil cooler pipes from adapter and drain.
5. Remove oil cooler adapter (retain attaching bolts and plugs), see Figure 1.
6. Inspect the adapter to determine which condition exists. Part should be cleaned prior to inspection.
CONDITION "A" - Oil Cooler Bypass
Using a straight round shaft (not to exceed 8 millimeters), insert it into oil filter mounting boss hole, see Figure 2. Mark shaft and measure depth of hole. Depth of hole should not exceed 50 millimeters. If it does, condition "A" exists.
CONDITION "B" - Oil Filter Bypass
Using a "bright" light such as a penlight, etc. shine it into passage indicated in Figure 2. Rotate adapter and look down into second passage indicated in Figure 2 and check for the presence of light at the bottom of hole. If light is present, condition "B" exists.
For CONDITION "C" - Neither of the above exists.
7. Install new adapter (P/N 14092393) using new seals (P/N 14092399 and 14015353), see Figure 1. Install retaining bolts and torque to 18-25 N.m (15-18 ft. lbs.). Install plugs using sealant and torque plugs to 14-20 N.m (11-15 ft. lbs.).
8. Reconnect oil cooler pipes at adapter and bracket, using sealant and torque nuts to 20-27 N.m (14-20 ft. lbs.). Torque nut on oil line bracket to 6-12 N.m (5-9 ft. lbs.).
9. Install new oil filter PF35 (P/N 6438384).
10. Fill crankcase with oil (6 litres).
11. Run engine and check all connections for leaks.
12. Shut off engine. Check engine oil level, and top off as required.
13. Install Campaign Identification Label.
INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL
Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.
Dear General Motors Customer:
General Motors of Canada has determined that certain 1988-89 GMC and Chevrolet K30 Series Trucks with 7.4L V8 engine and engine oil cooler option may have oil cooler line/filter adapters that were machined incorrectly. These adapters aUow oil to bypass the engine oil cooler and/or the engine oil filter.
To prevent the possibility of this condition occurring on your vehicle, it will be necessary to replace the engine oil cooter line/filter adapter. In addition, new oil and oil filter will be installed. This service will be performed for you at no charge.
Please contact your GM Dealer as soon as possible to arrange a service date. Instructions for making this correction have been sent to your Dealer. The labour time necessary to perform this service is approximately 45 minutes. Please ask your Dealer if you wish to know how much additional time will be needed to schedule and process your vehicle.
This letter identifies your vehicle. Presentation of this letter to your Dealer will assist their service personnel in completing the necessary correction to your vehicle in the shortest possible time.
Further assistance, if required, may be obtained from the General Motors Zone Office nearest you. Your vehicle Owner's Manual provides the location and phone number of each respective Zone Office.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
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.
