Cooling - MIL ON/DTC P1285/P1299/High Gauge Reading

TSB 06-21-15

10/30/06

MIL ON - DTC P1285 / P1299 - 5.4L 3V / 6.8L 3V -
FALSE OVERHEAT

FORD:
2005-2007 F-53 Motorhome Chassis, F-Super Duty

ISSUE
Some 2005-2007 F-Super Duty and F-53 Motorhome chassis vehicles equipped with a 5.4L or 6.8L 3-valve engine may exhibit an engine temperature gauge indicating an overheating condition with the malfunction indicator lamp (MIL) on with diagnostic trouble codes (DTCs) P1285 and P1299.

ACTION
Performing normal engine cooling system diagnostics in Workshop Manual, Section 303-03, if it is determined that the engine is not physically overheating (coolant expulsion) install a new thermostat and crossover pipe. They have been revised for improved cooling system flow characteristics.





Parts Block

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

OPERATION DESCRIPTION TIME

062115A 2005-2007 F-Super Duty 2.8 Hrs.
5.4L 3V: Replace The
Crossover Pipe, And
Thermostat, Includes Time
To Check Diagnostic
Trouble Codes (Do Not
Use With 6051A, 6007A,
12650D, 10346A, 9280A,
9424A, 9600A, 9601A,
9926A)

062115A 2005-2007 F-Super Duty 2.3 Hrs.
6.8L 3V: Replace The
Crossover Pipe, And
Thermostat, Includes Time
To Check Diagnostic
Trouble Codes (Do Not
Use With 6051A, 6007A,
12650D, 10346A, 9280A,
9424A, 9600A, 9601A,
9926A)

DEALER CODING
CONDITION
BASIC PART NO. CODE
8575 42





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