Rick's Free Auto Repair Advice

Serpentine Belt noise Ford Lincoln

Fix Serpentine Belt noise Ford Lincoln

If you encounter a serpentine belt noise that sounds like a high-pitched hoot or whistle on your Ford or Lincoln 4.6 and 5.4L engine, this may be your fix. The noise is most noticable on cold startup, usually below 40 degrees. And the noise usually stops after 10-mins of driving.

Ford has discovered that the ribbed serpentine belt may wear grooves in the nylon idler pulley. Ford has redesigned the pulley. Installing a new pulley 6L3Z-6C348-A should eliminate the problem. The new pulley costs about $40 and you can get it at any Ford dealer or here

serpentine belt noise, belt noise, pulley noise

Order new pulley #6 from Ford

The fix affects the following vehicles:

2007-08 F-150s and Mustangs with the 4.6 and 5.4L engines,

2007-08 Lincoln Mark LTs/Navigators and Ford Expeditions with the 5.4L engine

2007-08 Ford Explorer and Explorer Sport Trac models and Mercury Mountaineers with the 4.6L engine.

©, 2014 Rick Muscoplat

Posted on by Rick Muscoplat

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