Fulltext TSBs

Technical Service Bulletins

TSB
03-21-26
  • NOISE – “MOANING” AT 1500-2000 RPM – 4X4 VEHICLES WITH 7.3L DIT ENGINE
Publication Date: October 6, 2003

FORD:
1996-1997 F-250 HD, F-350

Article 97-9-20 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.

ISSUE:

A “moaning” noise during 1500-2000 RPM on neutral engine run-up, or while driving under load, may be heard on some vehicles. This may be caused by the noises transmitted from the powertrain-to-frame connections.

ACTION:

Repair or replace the following areas:

  • Engine mounts
  • Transmission mount
  • Transmission crossmember
  • Engine position in the vehicle
  • Exhaust tuning code
  • Exhaust hanger isolators

Refer to the following Service Procedure for details.

SERVICE PROCEDURE

  1. Remove the catalytic converter exhaust hanger rod which is outboard or closest to the right frame rail on vehicles built prior to 2/23/96. This will leave one hanger rod from the front converter pipe to the bracket for improved exhaust resonance isolation. For location, refer to the 1996 F-Series Powertrain/Drivetrain Service Manual, Page 09-00-07, View “A”.
  2. Replace the RH engine mount with revised Engine Mount (F7TZ-6038-CA) on vehicles built prior to 1/17/97.
  3. Make sure the engine is “decked” in the frame without binding the engine and transmission by leveling the engine as follows:
    1. Back out the four (4) nuts on the engine mounts.
    2. Observe the location of the engine mount’s bottom stud on the left and right hand side to the crossmember’s key hole slot.
    3. Position the engine so that the bottom engine mount stud is the same distance from the bottom of the slot on the left and right side within 1mm.
    4. Tighten the engine mount nuts to 96-127 N-m (71-94 lb-ft).
  4. Replace the transmission mount with Transmission Mount (F6TZ-6068-B) on vehicles built prior to 8/12/96.
  5. Retorque the transmission crossmember by using the procedure referred to in TSB 97-3-10, (D) Transmission Crossmember, to relieve any binding or stress that may be present.
  6. Re-evaluate the vehicle for improvement.

PART NUMBERPART NAME
F7TZ-6038-CAEngine Mount (RH)
F6TZ-6068-BTransmission Mount

OTHER APPLICABLE ARTICLES:

97-3-10

SUPERSEDES:

97-9-20

WARRANTY STATUS:

Information Only


NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle.

Copyright © 2003 Ford Motor Company