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TSB 09-005-04

Growling Sound On Accelleration

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Date: February 17, 2004

Models: 2003 (DR) Ram Truck

NOTE: This bulletin applies to 1500 Series 4 x 2 vehicles equipped with 4.7L and 3.7L engines.

Overview:
This bulletin involves installing a rubber isolator between the motor mount and the motor mount bracket.

Symptom/Condition:
A growling or moaning sound may be present on heavy acceleration when carrying heavy loads or towing. This condition may be cause by the right motor mount contacting the motor mount frame bracket.

Diagnosis:
Inspect the right engine mount and bracket. If the motor mount is contacting the bracket, witness marks (shiny metal) will be present on the frame bracket. If the witness marks are present perform the Repair Procedure.

Parts Required:
Qty. Part No. Description
1 55366020AA Isolator pad

Repair Procedure: 
1.      Raise the vehicle on a hoist.
2. Place an adjustable jack stand under the engine to support the engine when the motor mount through bolts removed.
3. Loosen both motor mount through bolts. Leave the nut on the left side mount as this bolt will not be removed. Remove the nut on the right side.
4. Raise the engine with the jack stand until the right side through bolt becomes free. remove the right side bolt. Raise the engine far enough to clear the frame bracket and allow the isolator pad, p/n 55366020AA to be inserted. Insert the isolator on the mount with the Pentastar logo facing the front of the vehicle.(Figure 1). Lower the bracket and align the mount with the frame bracket and push the bolt through the isolator and bracket with the threads at the rear.
 
5. Install the nut and tighten both through bolts to 115 Nm (85 ft. lbs.).
6. Remove the jack stand.
7. Lower the vehicle

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:

Labor Operation No:   Description Amount
09-40-10-91 Install Isolator 0.6 Hrs.

Failure Code:

68        Noisy

I would like to thank Bob Bergevin, Arthur Cantrall, Barry Drodge, David Lovell, Bill Maurits, and Steve for supplying the information for these bulletins. And a big thank you goes to Geno's Garage for making DodgeRam.info possible.

 

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This page was edited on: May 3, 2004