F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Fan Clutch: All Technical Service Bulletins
Cooling System - Fan Clutch Noise on Cold Start-Up
TSB 05-4-3
03/07/05
COOLING FAN CLUTCH NOISE - VEHICLES BUILT
PRIOR TO 10/1/2004 - 5.4L AND 4.6L ENGINES
FORD:
2004-2005 F-150
ISSUE
Some 2004-2005 F-150 vehicles built prior to 10/1/2004 and equipped with a 5.4L or 4.6L engine, may exhibit a noise coming from the engine cooling
fan. The noise may be described as a rolling engine idle, most noticeable just after a cold engine startup and before the fan clutch has warmed up.
ACTION
If the condition is verified, replace the cooling fan clutch per Workshop Manual Section 303-03. The condition can be verified by starting the vehicle
cold, placing the transmission into gear and listening for a repeated increase and decrease in cooling fan noise.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION
DESCRIPTION
TIME
050403A
2004-2005 F-150 4.6L
0.6 Hr.
MFI, 5.4L 3V: Replace The
Cooling Fan Clutch
(Includes Time To Start
Engine And Verify Noise)
(Do Not Use With 8616A)
DEALER CODING
CONDITION
BASIC PART NO.
CODE
8A616
42
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