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What is the wet belt problem on a Ford?

The wet belt problem is a common issue that can affect certain Ford vehicles. It occurs when water or moisture accumulates on the serpentine belt, leading to slippage and potential problems with the engine's accessory components. This article will provide a detailed explanation of the wet belt problem, its causes, and how to address it.


What is the Wet Belt Problem?


The serpentine belt, also known as the drive belt, is responsible for powering various accessories in a vehicle, such as the alternator, power steering pump, and air conditioning compressor. In some Ford models, the belt can become exposed to water or moisture, leading to a condition known as the "wet belt problem." When the belt is wet, it can slip and lose traction, causing the accessories it powers to malfunction or stop working altogether.


Causes of the Wet Belt Problem


There are several potential causes of the wet belt problem in Ford vehicles:



  • Leaks in the engine or cooling system: Coolant or water leaks can allow moisture to accumulate on the serpentine belt, leading to the wet belt problem.

  • Poor drainage or water pooling: Improper drainage or water pooling around the engine compartment can also contribute to the wet belt issue.

  • Damaged or worn-out seals: Worn-out or damaged seals around the engine or accessory components can allow water to enter the engine compartment and reach the serpentine belt.

  • Heavy rain or car washes: Exposure to heavy rain or high-pressure car washes can also cause water to reach the serpentine belt.


If the wet belt problem is left unaddressed, it can lead to further issues, such as the failure of the alternator, power steering pump, or other accessory components that rely on the serpentine belt for power.


Addressing the Wet Belt Problem


To address the wet belt problem, the first step is to identify and address the underlying cause. This may involve:



  • Inspecting for leaks: Carefully inspect the engine and cooling system for any signs of leaks and address them accordingly.

  • Improving drainage: Ensure that the engine compartment has proper drainage to prevent water pooling around the serpentine belt.

  • Replacing worn-out seals: If the seals around the engine or accessory components are damaged, they should be replaced to prevent water intrusion.

  • Protecting the belt: In some cases, it may be necessary to install a protective cover or shield over the serpentine belt to prevent water exposure.


Once the underlying cause has been addressed, the next step is to clean and dry the serpentine belt. This can be done by using a clean, dry cloth to wipe down the belt and ensure it is free of any moisture. In some cases, it may be necessary to replace the serpentine belt if it has been severely damaged or worn due to the wet belt problem.


By addressing the wet belt problem promptly and addressing the root cause, you can help prevent further damage to your Ford vehicle's engine and accessory components.

What year did Ford stop using wet belts?


Dear Customer, Ford Focus Ecoboost engines manufactured prior to 2019 used a wet belt for the camshaft drive, which runs inside the engine and requires periodic overhauls.



How often should a Ford wet belt be changed?


When to replace a wet timing belt. All manufacturers have different replacement intervals for wet timing belts. For example, Ford's recommended lifespan is 144,000 miles or 120 months, whereas Vauxhall recommend every 6 years or 60,000 miles – whichever comes first.



What happens when a wet belt breaks?


A failed wet belt can result in catastrophic engine damage, necessitating costly repairs or even engine replacement. Therefore, regular inspection and timely replacement of wet belts are crucial preventive measures to safeguard the engine's health and reliability.



How do you know if a wet belt needs replacing?


When replacing a wet timing belt. There are no apparent signs to detect problems with the oil bath belt. However, if the wet belt is worn, the engine may have difficulty starting or run poorly at idle and operate erratically at high speeds. Although wet belts are less prone to breaking, their teeth can come loose.



What is the wet belt problem on Ford?


Top Reason for Wet Belt Failure:
Over time, the wet belt sheds fibres, which contaminate the oil. If these fibres aren't flushed out through regular oil changes, they can clog the oil pump strainer, reducing oil pressure and flow.



How much does it cost to replace a Ford wet belt?


Price by manufacturer

Car makeAverage price
Citroen£358
Ford£715
Peugeot£680


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.