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Overheating - Commercial Applications (08-15-1)

WARNING: This page is about the Escape Hybrid, 4WD, which is a different variant/trim than selected.
Publication date: 2008-08-04
Reference number: 08-15-1
Supersedes refnos: 05-4-10

OVERHEATING - COMMERCIAL APPLICATIONS

OVERHEATING - COMMERCIAL APPLICATIONS

TECHNICAL SERVICE BULLETIN

Reference Number(s): 08-15-1, Date of Issue:  August 4, 2008
FORD: 2005-2008 Escape Hybrid
MERCURY: 2006-2008 Mariner Hybrid
Superceded Bulletin(s): 05-4-10, Date of Issue:  March 7, 2005
NOTE: This article supersedes TSB 05-4-10 to update the Service Procedure, Parts List and Model Years.

ISSUE

Some 2005-2008 Escape Hybrid and 2006-2008 Mariner Hybrid vehicles used in certain commercial applications such as Taxis and Security services where extended low speed run time and extended idling occurs may exhibit a red triangle light and codes indicating a transaxle overtemp. This condition may result in reduced power as the system activates fail safe operation. Codes P1A0E, P1A0F, P0A3C, P0A7A, P0A7C and P1A0D may also be set.

ACTION

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

NOTE: THIS MESSAGE IS NOT APPLICABLE TO LOSS OF ENGINE COOLANT OR BASE ENGINE OVERHEAT CONCERNS. FOLLOW NORMAL DIAGNOSIS IN CASES OF ENGINE OVERHEATING
  1. After verifying the Motor Electronics Cooling System (MECS) is at the proper level and condition, raise the vehicle on a hoist and with the ignition key in the run position, use a stethoscope to verify operation of the MECS pump.
  2. If the pump is running, verify coolant flow into the MECS degas bottle. If there is no flow, verify hoses are not pinched or twisted and if no issues are found replace the pump with the listed kit part.
  3. If the pump runs and there is coolant flow into the degas bottle this Technical Service Bulletin (TSB) may not apply so follow normal diagnosis and repair.
  4. If the pump is not running, tap the housing and listen for the pump to turn on.
  5. If the pump turns on after tapping, replace the pump with new service kit. The kit provides the necessary instructions and hardware.
  6. If the pump does not turn on after tapping verify power is available to the pump and connector C1466 at the MECS pump is fully seated.
    1. If the connection to the pump is good and system voltage is available to the pump, replace the pump with new service kit. The kit provides the necessary instructions and hardware.
    2. If power is not available to the pump, follow pin point test "A" in Workshop Manual (WSM), Section 307-02B.

PARTS INFORMATION

PARTS INFORMATION

Part Number Part Name
5M6Z-8C419-A Water Pump

WARRANTY INFORMATION

WARRANTY STATUS:  Eligible Under Provisions Of New Vehicle Limited Warranty Coverage.

IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
WARRANTY INFORMATION

Operation Description Time
081501A 2005-2008 Escape Hybrid and 2006-2008 Mariner Hybrid: Replace The MECS Pump, Includes Time To Perform The Diagnosis Included In This Article (Do Not Use With 12650D, 8419A) 1.3 Hrs.
MT081501 Claim Additional Diagnosis (Pinpoint Test A) Or Labor Performed As Actual Time Actual Time
DEALER CODING

Basic Part No. Condition Code
8C419 42
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