CAMPAIGN: WATER PUMP SEAL FAILURE
CUSTOMER SATISFACTION CAMPAIGN
SUBJECT: 97011 - WATER PUMP SEAL FAILURE ----------------------------------------
MODELS: 1995 CHEVROLET P3**72 REAR DIESEL-ENGINE PUSHER-CHASSIS MOTOR HOMES ---------------------------------------------------------------
General Motors has decided that certain 1995 P3**72 rear diesel-engine pusher-chassis motor homes may exhibit a condition in which air present in the cooling system can gravitate to the engine water pump. When this occurs, the water pump seal becomes dry, allowing coolant to leak out of the water pump. If the operator notices the temperature gauge rising as a result of the coolant loss, the vehicle can be stopped and towed in for repair. If the operator does not notice the temperature rising and continues driving the vehicle, the loss of coolant will cause excessive heat resulting in major engine damage.
To correct this condition, dealers are to install a bleeder valve to purge the system of air.
VEHICLES INVOLVED
Involved are certain 1995 PS**72 rear diesel-engine pusher-chassis motor homes. Involved VINs are listed below.
INVOICE SHIP TO VIN DLR. DLR. ----------------- ------- ------- 1GBLP47FXS3331068 11-378 59-235 1GBLP47FlS3331069 11-378 59-235 1GBLP47S8S3328408 59-857 59-857 1GBLP47S8S3328411 59-857 59-857 1GBLP47S3S3328414 59-857 59-857 1GBLP47S7S3328416 59-857 59-857 1GBLP47S8S3331843 59-857 59-857 1GBLP47S4S3328406 59-857 59-857 1GBLP47S6S3328407 59-857 59-857 1GBLP47SXS3328412 59-857 59-857 1GBLP47SlS3328413 59-857 59-857 1GBLP47S5S3328415 59-857 59-857 1GBLP47SlS3331070 59-857 59-857 1GBLP47S3S3331071 59-857 59-857 1GBLP47S6S3331842 59-857 59-857 1GBLP47SXS3331844 59-857 59-857 1GBLP47F8S3331845 59-857 59-857 1GBLP47FXS3331846 59-857 59-857 1GBLP47FlS3331847 59-857 59-857 1GBLP47F8S3332493 59-857 59-857 1GBLP47FXS3332494 59-857 59-857 1GBLP47FlS3332495 59-857 59-857 1GBLP47F3S3332496 59-857 59-857 1GBLP47S3S3322340 59-999 59-857 1GBLP47S7S3324673 59-999 59-857 1GBLP47SOS3313742 59-999 59-857 1GBLP47S2S3313743 59-999 59-857 1GBLP47S5S3322341 59-999 59-857 1GBLP47S9S3324674 59-999 59-857 1GBLP47SOS3324675 59-999 59-857 1GBLP47S2S3324676 59-999 59-857 1GBLP47S4S3324677 59-999 59-857 1GBLP47S6S3324678 59-999 59-857 1GBLP47S8S3324679 59-999 59-857 1GBLP47S4S3324680 59-999 59-857 1GBLP47SXS3328409 59-999 59-857 1GBLP47S6S3328410 59-999 59-857
NOTICE
Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System).
Involved vehicles have been identified by Vehicle Identification Number. Computer listings containing the complete Vehicle Identification Number, customer name and address data have been prepared, and are being furnished to involved dealers with the campaign bulletin. The customer name and address data furnished will enable dealers to follow-up with customers involved in this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.
These dealer listings may contain customer names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign.
PARTS INFORMATION
Parts required to complete this campaign will be obtained from two sources. The thread sealer and coolant are to be obtained from GMSPO in the customary way. The Heater/Cooling Service Kit will be shipped at no charge from Helm, Inc. to dealers identified by the customers (see Customer Notification). There are only 37 units involved in the campaign, please refer to your "involved vehicles listing" prior to ordering requirements.
Part Quantity/ Number Description Vehicle -------- -------------------------- ---------- *1517280 Heater/Cooling Service Kit 1 12346004 Thread Sealer .015L 12346290 Coolant 1 Gallon
*Do not order this Service Kit from GMSPO.
CUSTOMER NOTIFICATION
Customers will be contacted by phone and to determine which dealer they will be taking their vehicle to for completion of this campaign. A customer letter will also be sent to these customers after the phone contact (see copy of customer letter included with this bulletin).
DEALER CAMPAIGN RESPONSIBILITY
All unsold new vehicles in dealers' possession and subject to this campaign must be held and inspected/repaired per the service procedure of this campaign bulletin before customers take possession of these vehicles. Dealers are to service all vehicles subject to this campaign at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing to such customers a copy of the appropriate divisional customer letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this campaign enters your vehicle inventory, or is in your dealership for service in the future, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.
SERVICE PROCEDURE
1. Remove surge tank cap and drain engine coolant from drain cock valve located at the bottom of radiator (Figure 1).
2. Unplug electrical connection at the alarmstat (Figure 2). Remove alarmstat (P/N 15734993) and reducer (P?N 15739901 from the thermostat crossover. The alarmstat will be reused the reducer may be discarded.
3. Apply .005L thread sealer (P/N 12346004 or equivalent to treads of alarm- stat and install alarmstat into the new upper radiator hose pipe (P/N 15150831) supplied in the service kit (Figure 3).
4. Remove existing upper radiator hose pipe. Reusing the hose clamps, install the new upper radiator hos pipe assembly (P/N 15150831) (figure 3). Recon- nect the electrical connection at the alarmstat. Torque clamps to 2-3 Nm.
5. Remove the heater supply hose from the water outlet located on the right side rear of cylinder head (figure 4)
6. Remove the elbow, coupling and fitting from the right side rear cylinder head, the former location of the heater water outlet hose (figure 4). Discard all parts.
7. Apply .005L thread sealer (P/N 12346004) or equivalent to the threads of the 3/8" pipe thread plug (P/N 23503930) and install the plug in the heater water outlet at the rear of the right bank cylinder head.
8. Using two new clamps(P/N 2467789), install connector (P/N 15651396) to the heater hose end removed from the cylinder head fitting (Figure 5). The large diameter of this connector should be fitted to the supply hose. Install the section of heater hose supplied in the kit to the other end (small diameter) of the connector. Torque clamps to 2-3 Nm.
9. Install heater hose fitting (P/N 10232531) into the thermostat crossover at the former location of the alarmstat (Figure 5). Do not use sealer on threads, the fitting has pre-applied sealant on the threads.
10. Using a new clamp (P/N 2467789), install the water outlet hose extension to the heater hose fitting (P/N 10232531) at the thermostat crossover (Figure 5). Cut the hose to the required length, if necessary. Torque clamp to 2-3 Nm.
ll. Apply .005L thread sealer (P/N 12346004) or equivalent to the bleeder valve (P/N 9427524) and install the bleeder valve in the connector (P/N 15688018) (Figure 6).
12. At the heater core assembly in the front of the vehicle, locate the heater return line (Figure 6). Using the remaining hose supplied in the service kit, as a guide, locate an area in the heater return hose that would be a suitable location for the bleeder valve connector. The location of the bleeder valve connector is important to provide service accessibility for the heater core coolant drain.
13. Cut the heater return hose and remove the old section of the hose from the heater core outlet tube. Using a new clamp (P/N 2467789), install the large diameter formed end of the new hose (P/N 15974501) to the heater core outlet tube. Torque clamp to 2-3 Nm.
14. Using 2 new clamps (P/N 2467789), install the large diameter of the connector in the existing heater outlet hose and the small diameter of the connector in the new hose section connected to the heater core. Torque clamps to 2-3 Nm.
Note:
The bleeder valve must point downward after installation in the heater return line.
15. Close the radiator drain cock valve and refer to the Heating and Cooling System Fill Procedure listed below to properly refill the cooling system.
Heating and Cooling System Fill Procedure
1. Open bleeder valve at the heater assembly return line.
2. Start filling the cooling system with coolant at the surge tank, located on top of the radiator.
3. Continue to fill the cooling system until coolant begins to spill from the bleeder valve at the heater assembly. Close the bleeder valve and continue to fill until the surge tank will not accept any more coolant.
4. With the surge cap off, start and run the engine at high idle, approximately 1200-1400 RPM, for two minutes. Shut off the engine.
5. Open the bleeder valve at the heater assembly return line. Add coolant to the surge tank and bleed until only coolant spills from the valve. Close the bleeder valve.
6. Top off the surge tank until it will not accept any more coolant.
7. Repeat Steps 4 and 5.
8. Top off the surge tank and reinstall surge tank cap.
9. Check all connections for coolant leaks and correct as necessary.
10. Install the GM Campaign Identification Label.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label". Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a 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 by the customer for periodic servicing. When installing the Campaign Identification Label, be sure to pull the tab to allow adhesion of the clear protective covering. Additional Campaign Identification Labels can be obtained from VISPAC Incorporated by calling 1-800-269-5100 (Monday-Friday, 8:00 a.m. to 4:30 p.m. EST). Ask for Item Number S-1015 when ordering.
Apply the "Campaign Identification Label" only on a clean, dry surface.
CLAIM INFORMATION
Submit a Product Campaign Claim with the information indicated below:
REPAIR PART FAILED PARTS LABOR LABOR NET PERFORMED COUNT PART NO. ALLOW CC-FC 0P HOURS ITEM ---------- ------ -------- ----- ----- ----- ----- -----
Install 3 --- ** MA-96 V0018 3.0 $10.80 Heater/Cooling - --- ** Service Kit - --- **
For Campaign Administrative Allowance, add 0.1 hours to the "Labor Hours".
The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 40% for coolant needed to complete the repair.
The amount identified in the "Net Item" column represents both the cost of the actual amount of thread sealer used plus 40% ($2.80) and the Dealer Allowance for the Heater/Cooling Service Kit supplied at no charge ($8.00).
Refer to the General Motors Corporation Claims Processing Manual for details on Product Campaign Claim Submission.
(Sample Of Notification Used)
March, 1997
Dear Chevrolet Customer:
This notice is sent to inform you of a recall campaign that includes your vehicle.
Reason For This Recall: General Motors has decided that certain 1995 P3**72 rear diesel-engine pusher-chassis motor homes may exhibit a condition in which air present in the cooling system can gravitate to the engine water pump. When this occurs, the water pump seal becomes dry, allowing coolant to leak out of the water pump. If the operator notices the temperature gauge rising as a result of the coolant loss, the vehicle can be stopped and towed in for repair. If the operator does not notice the temperature rising and continues driving the vehicle, the loss of coolant will cause excessive heat resulting in major engine damage.
What Will Be Done: To correct this condition, your Chevrolet dealer will install a bleeder valve to purge the system of air. This service will be performed for you at no charge.
Contacting Your Dealer: Please contact your Chevrolet dealer as soon as possible to arrange a service date and to assure parts availability. Instructions for making this correction have been sent to your Chevrolet dealer. Please ask your dealer if you wish to know how much time will be needed to schedule, process and repair your vehicle.
If you experience any trouble scheduling your vehicle or you have any questions regarding this recall action, please the Chevrolet Customer Assistance at 1-800- 222-1020. Deaf, hearing impaired or speech impaired may call 1-800-833-2438 (utilizes Telecommunication Devices for the Deaf/Text Telephones, TDD/TTY).
Customer Reply Card: The enclosed customer reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction in the shortest possible time. If you no longer own this vehicle, please let us know by completing the postage paid reply card and returning it to us.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
Chevrolet Motor Division GENERAL MOTORS CORPORATION
Enclosure
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.
