F 150 2WD V8-4.6L VIN W (2007)
Drive Belt: All Technical Service Bulletins
Engine - FEAD Idler Pulley Noise During Cold Start
TSB 09-9-7
05/18/09
COLD START FEAD HOOT - WHISTLE NOISE
FORD:
2007-2008 Mustang, Expedition, Explorer Sport Trac, Explorer, F-150, F-150
LINCOLN:
2007-2008 Mark LT, Navigator
MERCURY:
2007-2008 Mountaineer
This article supersedes TSB 8-4-2 to remove the production build date.
ISSUE
Some 2007-2008 F-150, Mustang vehicles equipped with a 4.6L and 5.4L engine; 2007-2008 Mark LT, Expedition, Navigator vehicles equipped with a
5.4L engine; Explorer, Mountaineer, Explorer Sport Trac vehicles with 4.6L engine may exhibit a front end accessory drive (FEAD) related high-pitched
metallic whistle/hoot noise after a cold soak in ambient temperatures below 40 °F (4.4 °C). This noise may be caused by the grooved nylon FEAD idler
pulley.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
NOTE
FEAD IDLER PULLEY NOISE MAY BE MOST APPARENT AT OR NEAR COLD ENGINE IDLE SPEEDS (APPROXIMATELY 1200 RPM).
NOISE DURATION IS LESS THAN 10 MINUTES AFTER STARTUP AND WILL BE ELIMINATED WITH FEAD BELT REMOVED.
1.
Replace the nylon FEAD idler pulley, refer to Workshop Manual, Section 303-05.
Parts Block
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.
OPERATION
DESCRIPTION
TIME
090907A
2007-2008 F-150/Mark LT
0.3 Hr.
4.6L/5.4L: Replace FEAD
Idler Pulley Includes Time
To Remove And Install
Serpentine Belt (Do Not
Use With 8678A, 8620F)
090907A
2007-2008
0.4 Hr.
Expedition/Navigator:
Replace FEAD Idler Pulley
Includes Time To Remove
And Install Serpentine Belt
(Do Not Use With 8678A,
8620F)
090907A
2007-2008
0.4 Hr.
Explorer/Mountaineer/
