EGR Gasket - Engine Surge at 43 to 50 MPH

NO: 18-14-96

GROUP: Vehicle Performance

DATE: Apr. 5, 1996

SUBJECT:
Engine Surge At 43 to 50 MPH

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 18-37-95 DATED DECEMBER 15, 1995 WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS BULLETIN ADDS VEHICLES EQUIPPED WITH THE 3.9L ENGINE TO THE AFFECTED MODELS. THE CHANGES ARE HIGHLIGHTED WITH **ASTERISKS**.

MODELS:
1994 - 1995 (BR) Ram Truck

NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH THE **3.9L**, 5.2L, AND 5.9L (GAS) ENGINES ONLY.

SYMPTOM/CONDITION:

Engine surge noted at 43 to 50 MPH after torque convertor lockup.

DIAGNOSIS:

Test drive the vehicle from 43 to 50 MPH. Insure that torque convertor is engaged and maintain steady speed once MPH range is obtained. If surge is noted and tire and
wheel balance is within specifications, proceed to the Repair Procedure.

PARTS REQUIRED:

1 4874668 Gasket, EGR Valve To Intake Manifold

REPAIR PROCEDURE:





This bulletin involves the replacement of the EGR valve gasket with a new gasket which has a smaller orifice. See illustration.

1. **Record the radio station presets.**

2. Remove **and isolate** negative battery cable.

3. Disconnect vacuum hose at EGR valve/transducer assembly. Note position of hose on EGR valve and transducer for easier installation.

4. Remove two EGR valve mounting bolts.

5. Remove EGR valve and gasket, discard old gasket.

6. Clean intake manifold mating surface and EGR valve mating surface, then check for cracks.

7. Place new EGR gasket on intake manifold.

8. Install EGR valve and torque mounting bolts to 23 Nm (200 in. lbs.).

9. Connect vacuum hoses.

10. Connect negative battery cable.

11. Program the radio station presets and set the clock.

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:

Labor Operation No: 25-01-44-90 0.3 Hrs.

FAILURE CODE: P8 - New Part