Campaign - Manifold to Exhaust Pipe Seals Leaking
89Chevy24GMC NUMBER: 85-T-108
GROUP: 6F - Intake & Exhaust
DATE: August, 1989
CORPORATE
NUMBER: - -
SUBJECT: SPECIAL POLICY ADJUSTMENT - MANIFOLD TO EXHAUST PIPE SEALS LEAKING
MODELS: 1985 S/T MODELS WITH 2.8L (RPO LR2) ENGINE AND CALIFORNIA EMISSIONS (YF5)
General Motors has determined that some 1985 S/T model trucks with the 2.8L (RPO LR2) ex and California emissions (YF5) may exhibit an exhaust leak. This condition may be caused by an inadequate seal(s) between the exhaust manifold and exhaust pipe. New exhaust manifold to exhaust pipe seals and bolts have been released to correct this condition. The new bolts can only be used on the right side, while the new seal can be used on both sides.
VEHICLES INVOLVED
YEAR PLANT FROM THROUGH
1985 Shreveport SOP EOP
SPECIAL POLICY ADJUSTMENT
Should this condition occur, General Motors will repair involved vehicles at no charge as follows:
^ For vehicles under 5/50,000 miles, leaking seals will be replaced under normal warranty. A free inspection if owner suspects exhaust manifold to exhaust pipe seal leakage.
^ For vehicles over 50,000 miles, a Special Policy will provide a one time only free inspection and replacement of leaking exhaust manifold to exhaust pipe seals (regardless of time/mileage) for three (3) months (90 days) from date of the owner letter.
^ Additionally, owners within these criteria that have had these seals replaced previously at their expense will be reimbursed for three (3) month (90 days) from date of the owner letter.
This "SPECIAL POLICY ADJUSTMENT BULLETIN" should be filed in the three ring binder furnished each dealer by General Motors.
OWNER NOTIFICATION
Owners of vehicles involved in this SPECIAL POLICY ADJUSTMENT will be notified by GMC Truck Division (see copy of owner letter included with this bulletin).
Figure 1:
SERVICE PROCEDURE (See Figure 1)
1. Raise and support vehicle.
2. Remove the two bolts securing the exhaust pipe at the transmission support.
3. Remove the exhaust pipe to exhaust manifold bolts, right side and discard. Left side attaching hardware will be reused.
4. Use a pry bar, separate the exhaust pipe assembly from the manifold. Remove the seals and discard.
5. Install new seals. Install new bolts on the right hand manifold and use the existing studs/nuts on the left hand side. Torque bolts to 20 N-m (15 ft.lbs.).
6. Reinstall bolts at the transmission support. Torque bolts to 35 N-m (25 ft.lbs.).
PARTS INFORMATION
Parts are available from General Motors Service Parts Operation (GMSPO).
PART
NUMBER DESCRIPTION QUANTITY
15547998 Seal, Exhaust Manifold 2
15547999 Bolt, Exhaust Manifold 2
(Right Side Only)
WARRANTY INFORMATION
Dealers should submit a warranty claim on each vehicle completed.
LABOR
OPERATION TIME
NUMBER DESCRIPTION ALLOWANCE
T8012 Inspection Only .2 Hr
Replace two (2) exhaust pipe seals and bolts:
T8010 - S Truck .5 Hr
T8011 - T Truck .6 Hr
REIMBURSEMENT
Claims for customer reimbursement for previously paid repairs to correct a leaking exhaust manifold to exhaust pipe seal(s), are to be submitted to an authorized GMC Truck dealer within three (3) months (90 days) from the date of this letter. The reimbursement should not exceed the amount paid by GMC Truck Division for the applicable labor operation. When a customer requests reimbursement, the following must accompany the request:
^ Proof of ownership, and
^ Original paid receipt, or
^ A copy of receipt with proof of payment.
Claims for customer reimbursement on previously paid repairs are to be submitted on a warranty claim.
Dear GMC Truck Owner:
This letter has been sent to inform you of the following special policy that applies to your vehicle.
REASON FOR THIS SPECIAL POLICY
General Motors has determined that some 1985 S/T model trucks with the 2.8L (RPO LR2) engine and California emissions (YF5) may exhibit an exhaust leak. This condition may be caused by an inadequate seal(s) between the exhaust manifold and exhaust pipe.
New exhaust manifold to exhaust pipe seals and bolts have been released to correct this condition.
SPECIAL POLICY COVERAGE
Because this condition may occur beyond the warranty period, we are writing this letter to advise you that GMC Truck Division is offering the following:
^ For vehicles under 5/50,000 miles, leaking seals will be replaced under normal warranty. A free inspection if owner suspects exhaust manifold to exhaust pipe seal leakage.
^ For vehicles over 50,000 miles, a Special Policy will provide a one time only free inspection and replacement of leaking exhaust manifold to exhaust pipe seals (regardless of time/mileage) for three (3) months (90 days) from date of this letter.
^ Reimbursement for previous repair (see below).
WHAT YOU SHOULD DO
If you have previously encountered this condition, and paid for all or part of the repair, you should contact your GMC Truck dealer to request reimbursement within three (3) months (90 days) from date of this letter. Your dealer will advise you regarding reimbursement. The reimbursement will not exceed the amount paid by GMC Truck Division for the applicable labor operation. It will be necessary to present this letter along with paid receipts or invoices to verify any expenditures for such repairs. Please have them available when you contact your dealer.
We suggest you retain this letter with your Owner's Manual, Maintenance Guide, and Warranty Folder.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.