Specifications

Engine - Rattling/Lifter Type Noise

NO: 09-07-97

GROUP: Engine

DATE: June 27, 1997

SUBJECT:

Timing Chain Noise

MODELS: (Applies to '98+ models as well)

1990 - 1997 (AN) Dakota

1990 - 1997 (AB) Ram Van/Wagon

1990 - 1993 (AD) Ram Pickup/Ram Cab & Chassis/Ramcharger

1994 - 1997 (BR) Ram Truck

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 3.9L ENGINE.

SYMPTOM/CONDITION:

A Rattling or lifter type noise coming from the front (chain case) area of the engine.

DIAGNOSIS:

Start the engine and bring it to operating temperature. Increase and decrease engine RPM slightly while

listening to the front end of the engine for a rattling or lifter type noise. A stethoscope can be used to help

pin point the noise location. If the noise is found coming from the timing chain case, perform the Repair

Procedure.

PARTS REQUIRED:

1 83507095 Timing Chain and Sprocket Package

1 53021057 Gasket, Timing Chain Case

1 02129013 Gasket, Water Pump 1990 - 1991

1 04483757 Gasket, Water Pump 1992 - 1997

1 4897297AA Seal, Front Case 1992 - 1997

1 03830109 Seal, Front Case 1990 - 1991

1 53021195AA Tensioner, Timing Chain

REPAIR PROCEDURE:

This bulletin involves replacing the timing chain and sprockets and installing a timing chain tensioner.

Following the appropriate service manual procedures, disassemble the front end of the engine to gain

access to the timing chain and sprockets.

Remove the chain and sprockets from the engine. Discard the parts