Fulltext TSBs

Technical Service Bulletins

TSB
12-3-1
  • 5.0L – INTERMITTENT METALLIC RATTLE OR SCRATCHING TYPE NOISE – WARM ENGINE AT IDLE
Publication Date: March 2, 2012

FORD:
2011-2012 Mustang, F-150

This article supersedes TSB 11-12-12 to update the Service Procedure and warranty causal part number.

ISSUE:

Some 2011-2012 F-150 and Mustang vehicles (excluding Boss) equipped with a 5.0L engine may exhibit an intermittent metallic rattle or scratching type noise in the area at the front of the left hand or driver side cylinder head at idle with the engine at operating temperature.

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

  1. Determine engine build date. Refer to Workshop Manual (WSM), Section 303-01.
    1. If engine build date is on or before 11/10/2011, proceed to Step 2.
    2. If engine build date is on or after 11/11/2011, do not continue with this procedure. Refer to the WSM, Section 303-00 for normal diagnostics.
  2. Warm the engine to operating temperature.
  3. Using a mechanic's stethoscope or EngineEAR, listen for a metallic type rattle or scratching type noise at the front of LH cylinder head.
  4. Is the noise heard in areas shown? (Figures 1 and 2)


    Figure 1 – Article 12-3-1




    Figure 2 – Article 12-3-1

    1. Yes – Proceed to Step 5.
    2. No – This article does not apply.
  5. Remove accessory drive belt, refer to WSM, Section 303-05. Is noise still present?
    1. Yes – Proceed to Step 6.
    2. No – Replace the coolant pump. Refer to WSM, Section 303-03A.
  6. Is the noise heard in the areas shown? (Figures 1 and 2)
    1. Yes – Replace the LH primary tensioner and timing chain tensioner arm using the kit part number provided in this article. Refer to WSM, Section 303-01B.
    2. No – This article does not apply. Refer to WSM, Section 303-00 for normal diagnostics.

      NOTE:FAILURE TO REPLACE BOTH THE PRIMARY TENSIONER AND TIMING CHAIN TENSIONER ARM MAY RESULT IN OVERLOADING OF THE TIMING CHAIN AND UNDER CERTAIN CONDITIONS COULD LEAD TO TIMING CHAIN FAILURE.


PART NUMBERPART NAME
BR3Z-6L266-AAChain Tensioner Kit
ZC-30Motorcraft® Silicone Gasket Remover
ZC-31-AMotorcraft® Metal Surface Prep
TA-30Motorcraft® Silicone Gasket And Sealant
BR3Z-8255-AThermostat Seal
F1VY-8507-AWater Pump Gasket
BR3Z-6A340-ACrankshaft Bolt
BR3Z-6020-BFront Cover Gasket – Left
BR3Z-6020-CFront Cover Gasket – Center
BR3Z-6020-DFront Cover Gasket – Right
BR3Z-6584-AValve Cover Gasket – Left
BR3Z-6584-DValve Cover Gasket – Right
BR3Z-8620-AA/C Stretchy Belt
BR3Z-8501-HWater Pump

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.

OPERATIONDESCRIPTIONTIME
120301A2011-2012 F-150 5.0L: Replace The Coolant Pump Includes Time To Diagnose (Do Not Use With Any Other Labor Operations)1.5 Hrs.
120301A2011-2012 Mustang 5.0L: Replace The Coolant Pump Includes Time To Diagnose (Do Not Use With Any Other Labor Operations)1.7 Hrs.
120301B2011-2012 F-150 5.0L: Replace The LH Timing Chain Tensioner And Tensioner Arm Includes Time To Diagnose (Do Not Use With Any Other Labor Operations)5.3 Hrs.
120301B2011-2012 Mustang 5.0L: Replace The LH Timing Chain Tensioner And Tensioner Arm Includes Time To Diagnose (Do Not Use With Any Other Labor Operations)5.4 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
850142