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models: 1994 - 1997 (BR) Ram Truck V6
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.
Rattling or lifter type noise coming from the front (chain case) area of the engine.
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.
This bulletin involves replacing the timing chain and sprockets and installing a timing chain tensioner.
1. Following the appropriate service manual procedures, disassemble the front end of the engine to gain access to the timing chain and sprockets.
2. Remove the chain and sprockets from the engine. Discard the parts.
3. Remove the chain oil tab the parts. thrust plate and (Figure 1). Discard the parts.
4. Install the timing chain tensioner pln 53021195AA in the position where the thrust plate and oil tab was installed (Figure 2). Torque the bolts to 24 Nm (21 0 in. Lbs.).
5. Install the new timing sprockets and chain pln 083507095. Align the timing marks per the appropriate service manual procedure. Torque the camshaft bolt to 68 Nm (50 ft. Lbs.).
6. Remove the lock pin that holds the tensioner plate for the chain. Discard the pin.
NOTE: WITH THE TIMING CHAIN TENSIONER INSTALLED, THE CAMSHAFT END PLAY WILL BE 0.051 - 0.330MM (.002 TO.013 IN).
7. Reinstall the remaining components per the appropriate service manual procedures.
POLICY: Reimbursable within the provisions of the warranty.
Labor Operation No: 09-10-05-92 .................................. 2.3 Hrs.
09-10-05-61 Power Steering ...................... 0.2 Hrs.
09-10-05-63 Air Conditioning ..................... 0.4 Hrs.
FAILURE CODE: P8 - New Part
Thanks to Bob Bergevin and Barry Drodge for supplying this TSB information
This page was edited on: May 3, 2004