Campaign - Water Pump Shaft Seal Leaks
CUSTOMER SATISFACTION
Bulletin No.: 13079
Date: April 05, 2013
2016 GMC Truck Acadia AWD V6-3.6L Page 333
Subject: 13079 Water Pump Shaft Seal Leaks
Models:
2009-2013 Buick Enclave
2009-2013 Chevrolet Traverse
2009-2013 GMC Acadia
2009-2010 Saturn Outlook
Equipped with HFV6 Engine (LY7, LLT)
THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2015.
Condition
Certain 2009-2013 model year Buick Enclave, Chevrolet Traverse, GMC Acadia and 2009-2010 model year Saturn Outlook vehicles equipped with
HFV6 Engine (LY7, LLT) may experience leaks from the water pump shaft seal. These leaks are often due to vehicle operation with a low engine
coolant level. Proper maintenance of the engine coolant level will increase shaft seal reliability and help ensure that the water pump operates as
intended.
Correction
Dealers are to check the engine coolant level and, if necessary, add the proper mixture of coolant directly to the radiator and the coolant recovery
tank.
Vehicles Involved
All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle History screen in GM Global Warranty
Management system. Dealership service personnel should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of
description or option content.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle identification number, customer name, and
address information has been prepared and will be provided to US and Canadian dealers through the GM GlobalConnect Recall Reports, or sent
directly to export dealers. Dealers will not have a report available if they have no involved vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle
registration data for any purpose other than follow-up necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this program.
Parts Information
Parts required to complete this program are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to your
"involved vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency
situation, parts should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Open the hood of the vehicle.
Note
The vehicle must be on a level surface when checking the coolant level.
2. Check to see if coolant is visible in the coolant recovery tank.
- If the coolant inside the coolant recovery tank is boiling, do not do anything else until it cools down.
- If coolant is visible but the coolant level is not 1 cm (.394 in) above the FULL COLD mark, add a 50/50 mixture of clean, drinkable water
and DEX-COOL coolant to the radiator. Proceed to step 3.
- If the coolant level is 1 cm (.394 in) above the FULL COLD mark, proceed to step 3.2 to determine if the coolant is at the base of the
radiator filler neck.
Warning
2016 GMC Truck Acadia AWD V6-3.6L Page 334
An electric engine cooling fan under the hood can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools
away from any underhood electric fan.
Warning
Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the surge tank
pressure cap-even a little-they can come out at high speed. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot.
Wait for the cooling system and surge tank pressure cap to cool if you ever have to turn the pressure cap.
- Add the proper mixture of coolant directly to the radiator, but be sure the cooling system is cool before this is done.
- Detach the fasteners and lift off the panel that covers the radiator cap.
- Remove the radiator pressure cap when the cooling system, including the upper radiator hose, is no longer hot. Turn the pressure cap
slowly counterclockwise about one full turn.
- Keep turning the pressure cap slowly and remove it.
- Fill the radiator to the base of the filler neck with the proper DEX-COOL coolant mixture.
- Fill the coolant recovery tank to 1 cm (.394 in) above the FULL COLD mark.
- Reinstall the cap on the coolant recovery tank but leave the radiator pressure cap off.
Note
If coolant begins to flow out of the filler neckat any time during this procedure, reinstall the pressure cap.
7. Start the engine and let it run until the upper radiator hose feels warm.
Start the engine and let it run until the upper radiator hose feels warm.
2016 GMC Truck Acadia AWD V6-3.6L Page 335
8. Determine the coolant level. If the coolant level inside the radiator filler neck is low, add more of the proper DEXCOOL coolant mixture
through the filler neck until the level is back up to the base of the filler neck.
Caution
If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly
secured.
9. Reinstall the pressure cap. Be sure to secure it tightly.
10. Install the panel that covers the radiator cap.
4. Close the hood of the vehicle.
Courtesy Transportation - For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer inconvenience when a vehicle requires a repair that is
covered by the New Vehicle Limited Warranties. The availability of courtesy transportation to customers whose vehicles are within the warranty
coverage period and involved in a product program is very important in maintaining customer satisfaction. Dealers are to ensure that these customers
understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. Dealers should refer to
the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.
Warranty Transaction Information
Submit a transaction using the table below. All transactions should be submitted as a ZFAT transaction type, unless noted otherwise.
* The amount identified in "Net Item" should represent the actual sum total of the current dealer net price for the coolant needed to perform the
required repairs, plus applicable Mark-Up or Landed Cost (for Export).
Customer Notification - For US and Canada
General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin).
Customer Notification - For Export
Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners
outside these areas, dealers should notify customers using the attached sample letter.
Dealer Program Responsibility
All unsold new vehicles in dealers' possession and subject to this program must be held and inspected/repaired per the service procedure of this
program bulletin before customers take possession of these vehicles.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle, or ownership, through
April 30, 2015.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the
involved vehicle 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. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Program 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 program enters your vehicle inventory, or is in your facility for service through April 30, 2015, you
must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.
Disclaimer
Owner Letter
Owner Letter
April 2013
2016 GMC Truck Acadia AWD V6-3.6L Page 336
Dear General Motors Customer:
We have learned that certain 2009-2013 model year Buick Enclave, Chevrolet Traverse, GMC Acadia and 2009-2010 model year Saturn Outlook
vehicles equipped with HFV6 engine may experience leaks from the water pump shaft seal. These leaks are often due to vehicle operation with a low
engine coolant level. Proper maintenance of the engine coolant level will increase shaft seal reliability and help ensure that the water pump operates
as intended.
Your satisfaction with your GM vehicle is very important to us, so we are announcing a program to prevent this condition.
What We Will Do: Your GM dealer will check your vehicle's engine coolant level and, if necessary, add sufficient engine coolant. This service will
be performed for you at no charge until April 30, 2015. After that, any applicable warranty will apply.
What You Should Do: To limit any possible inconvenience, we recommend that you contact your dealer as soon as possible to schedule an
appointment for this repair. By scheduling an appointment, your dealer can ensure that the necessary parts will be available on your scheduled
appointment date.
If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number
listed below.
Courtesy Transportation: If your vehicle is within the New Vehicle Limited Warranty, your dealer may provide you with shuttle service or some
other form of courtesy transportation while your vehicle is at the dealership for this repair. Please refer to your Owner Manual and your dealer for
details on Courtesy Transportation.
We sincerely regret any inconvenience or concern that this situation may cause you. We want you to know that we will do our best, throughout your
ownership experience, to ensure that your GM vehicle provides you many miles of enjoyable driving.
Jim Moloney
General Director,
Customer and Relationship Services
13079
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