Changing the serpentine belt is just one of core maintenance items on any type of F-150 or F-250. It"s likewise a an excellent way for mechanical novices to get acclimated with working under the hood. Acquire your hands dirty v our guide below.

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This article uses to the Ford F-150 (2004-2014) and also the F-250, F-350 at sight Duty (2005-2014).

The serpentine belt is an essential to save your Ford F-150 or at sight Duty running. A worn belt will certainly look both dry and cracked, and it will offer you a nasty squeal when starting your truck. Over time, the squeal will worsen and also be constant. When the squealing starts, it’s time to replace the belt. Leaving the belt top top will cause breaking, which will certainly leave the your F-150 or F-250 inoperable and you stranded.

The drive belt (or serpentine belt) powers the accessories that operation off her engine. That means your alternator, your power steering pump, her air conditioning compressor, and your coolant pump all die instantly if her serpentine belt snaps.

That"s why It"s crucial to visually check your belts every time you readjust your oil. That method that you must make certain they"re not cracking every 7,500 miles. The typical lifespan of a serpentine belt is around 60,000 miles. It deserve to be substantially less if the belts space low high quality or if the truck has been supplied in serious conditions.

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Materials Needed

F-150s v a 4.2L V6, 4.6L V8, 5.4L V8 and also the super Duty need

1/2" drive ratchetbreaker bar (optional)

F-150s with a 3.5L V6, 3.7L V6, or 5.0L Coyote V8 call for

Stretch Belt Remover/Installer


Step 1 – clear the means to the tensioner

Pop the hood. On the radiator shroud you’ll see a sticker v the layout of the serpentine belt. If not, situate your serpentine belt layout in the images listed below (figure 3).

Locate the belt tensioner, it’ll look prefer a sheave with an arm coming off of it.

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Figure 1. Friend don"t need to remove the radiator shroud to access the tensioner. It"ll be in the gap between the engine block and the fan.

Step 2 - be sure belt tensioner

Insert either your 1/2” journey ratchet or your belt remover tool right into the tensioner. Rotate clockwise in the direction of driver side.

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Figure 2. The serpentine belt tensioner is highlighted above. That looks and also operates the same way in many Ford V8s and also V6s. That includes diesels. You will not find it top top the new 3.7-liter V6, the 3.5-liter EcoBoost or the 5-liter "Coyote."
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Figure 3. Turn this eight clockwise come relieve anxiety on the serpentine belt

Step 3 - eliminate serpentine belt from pulleys

While holding the tool in place to release tension, unhook the serpentine belt from the tensioner pulley. When you have actually it turn off one pulley, you deserve to release the device to have the ability to use both hands to eliminate it native the remainder of the pulleys.

For the Ford F-150
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3.5L Ecoboost, 3.7L V6
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5.0L "Coyote" V8
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6.2L "Boss" V8
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4.6L, 5.4L "Modular" V8For the Ford F-250 and also Super Duty trucks
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6.7L "Scorpion" Diesel V8 through one alternator
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6.7L "Scorpion" Diesel V8 with one alternator
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6.0L power Stroke Diesel V8

F-250s and Super Duties with gas engines will have actually the very same belt routing diagrams as their F-150 counterparts. Every one of the gasoline engines ~ above the supervisor Duty (including the V10 Triton and also the 6.2L ceo V8) will have the same routing diagram. You have the right to always dual check by looking in ~ the decal in your engine bay. It"s situated on height of the radiator together with several various other stickers.

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Pro Tip

The 3.5L Ecoboost V6, 3.7L V6, and also 5.0L Coyote V8 all have actually non-adjustable tensioners, definition you cannot simply loosen the tensioner to remove the belt. To change serpentine belts, you"ll either have to permit a shop to do it, or use a stretchy belt remover/installer to carry out it yourself.


Step 5 - Install new serpentine belt

Loop the serpentine belt onto all pulleys other than the tensioner. Once the belt is on all however the last pulley, usage your 1/2” drive ratchet or belt remover tool to ease the anxiety on the pulley. With stress and anxiety removed, there must be many of room to gain the belt onto the last pulley. Eliminate the tool and inspect your work and compare it to the diagram to make sure it’s set up correctly. Start the truck, if it operation your job-related is complete!