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Engine - Exchange Program

File In Section: 6 - Engine

Bulletin No.: 57-61-31E

Date: November, 1997

EXCHANGE PROGRAM

Subject:
Formal Engine Exchange Program for 1998 Model Year

Models:
1998 Chevrolet Cavalier
1998 Pontiac Sunfire
1998 Chevrolet and GMC S Trucks
with 2.2L Engine (VIN 4 - RPO LN2)
1998 Chevrolet Camaro, Corvette
1998 Pontiac Firebird
with 5.7L Engine (VIN G - RPO LS1)
1998 Chevrolet P Trucks
with 7.4L Engine (VIN B - RPO L21)

This bulletin is being revised to remove the 1998 Oldsmobile Intrigue (3.5L engine) and add 1998 Chevrolet and GMC S Trucks (2.2L engine) to the formal engine exchange program. Please discard Corporate Bulletin Number 57-61-31D (Section 6 - Engine).

Because product teams continually seek valuable information for product engineering improvements, a formal engine exchange program will, once again, be administered by GM Powertrain during the 1998 model year. The duration of the formal program, however, is shortened to six months. Routinely, engineering learnings from an exchange program are fairly complete after the first six months of field experience; conditions encountered after that are generally repeats of previously found concerns. Also, established criteria for inclusion in the formal engine exchange program are being strictly enforced for the 1998 model year.

In the interest of consistency and better communication, this single bulletin serves to cancel the previous (1997) model year formal engine exchange program and announce the 1998 model year engine exchange program. The engines for applications (models) identified above will be exchanged during the 1998 model year program which is outlined.

2.2L September 1, 1997 through
(VIN 4 - RPO LN2) February 28, 1998

5.7L September 1, 1997 through
(VIN G - RPO LS1) February 28, 1998

7.4L January 1, 1998 through
(VIN B - RPO L21) June 30, 1998

As in past engine exchange programs, you must call your divisional technical assistance group. You may be requested to perform some basic diagnostics which can include partial disassembly of some components. Once Technical Assistance has the data required, an engine exchange may be authorized.

If any internal components of a 1998 model year engine require replacement, the engine must be exchanged. Components of 1998 engines which MAY be serviced without exchange or removed for diagnosis are identified by an "x" in each engine type column.





Deficient engine components on the "serviceable component" list must be serviced according to the repair procedures in the applicable service information publication (manual). Deficient engine components NOT included in the list will require an engine exchange.

Procedures
Contact Technical Assistance to establish a case reference number and to make arrangements for shipping an exchange unit to your dealership. To increase the effectiveness of the program, the unit removed from the vehicle must be returned immediately (not later than 7 days after the receipt of the replacement unit).

FAILURE TO RETURN THE CONCERNED ENGINE WILL RESULT IN THE DEALERSHIP BEING BILLED THE DEALER NET COST OF THE EXCHANGED ENGINE.

The removed unit must be returned complete in the exchange engine shipping container. For effective engineering analysis, please do not remove any components. Engine dress on the removed unit must remain the same as the replacement engine (e.g., exhaust manifolds, throttle body, etc.). Any reinstalled components MUST be adequately torqued (i.e., to spec) to avoid operator injury during pre-teardown testing at the plant. Dealerships returning engines having been even partially disassembled will be judged as violating this procedure and, as such, will be billed for all materials furnished.

The exchange unit will be shipped with a quantity of oil; check oil level before starting engine.

Included with the exchange unit will be return shipping instructions, including a return shipping label (freight collect at destination) and a partially completed Bill of Lading.

Shipping Preparation
Drain all fluids from the removed engine and install any plugs taken off the exchange engine.

Remove the engine assembly as outlined in the applicable service manual. Remove any plastic shipping plugs and covers from the exchange unit and install them on the removed unit.

If the concerned engine leaks, mark the area directly on the engine. Write the Technical Assistance Case reference number on the repair order form.

Recrate the removed engine into the original shipping container. Place a copy of the repair order and the completed identification card in an envelope and attach the envelope to the engine being returned.

Shipping Instructions
Remove the original shipping tag and attach the return shipping label to the container. The Bill of Lading and Custom Papers (Canada only) provided with the exchange engine are the only documents required to return the removed engine.

Important:
CF Logistics is coordinating all exchange engine returns. Their hours of operation are 7:00 a.m. to 6:00 p.m. Central Time, Monday through Friday. You may contact them at 1-800-260-7834 to arrange for exchange engine core pickup. USE GROUND FREIGHT ONLY.

After the Bill of Lading has been dated and signed by the carrier, retain the last copy with your repair order and provide the other copies to the carrier. Your copy of the Bill of Lading, signed by the carrier, is your proof of returning the engine.

The removed engine is to be shipped by CF Motorfreight-collect-to the engine plant of origin (again, contact CF if you have questions regarding proper core return procedures). Please identify the dealer address (i.e., the return address) and Technical Assistance Case reference number on the outside of the crate.





If the envelope containing shipping information becomes lost, please contact CF Logistics at 1-800-260-7834 for shipping instructions or the appropriate engine plant at numbers listed.





Warranty Claims Processing Procedure
Use the following information for claim submission as shown.

Important:
Applicable miscellaneous items such as engine oil and coolant should be added to the part allowance amount and included in the Net Amount (DMN) column of the warranty claim.

Your cooperation is greatly appreciated. Prompt return of your concerned unit will increase the effectiveness of this program. If you have any questions regarding the exchange program administrative procedures, please contact divisional technical assistance (Miscellaneous Group/Engine Mechanical).