By far, the best belt dressing money can buy is a tube of grease. Forget all these expensive concoctions. Start with a dry belt and pulleys, add a little grease and let the belt run for a few minutes.
The WD-40® Belt Dressing Spray delivers better grip and traction for all types of old and used belts, including ribbed belts, V-belts and cogged belts.
You should apply belt dressing to your serpentine belt every month or every 3,000 miles to prolong its life and to prevent it from slipping. Sometimes, depending on the cause of the squeak. Belt dressing is intended as a tool to help you maintain your belts. It's not an easy fix for all squeaks.
Trusted mechanic suggested spray silicone to quiet squealing belt. Tried it and it worked. Did it several times over a period of about 6 months or so. Serpentine belt broke most of the way across and beat the underhood mat up.
Today, you should never put belt dressing on an EPDM-made serpentine belt. Belt dressing, and other oils and solvents, may quieten the belt noise when first applied, but these oils will actually cause the belt's rib surface to become more aggressive once they dry out, leading to even more belt noise issues.
That's right, ordinary bar soap can usually stop the squealing when rubbed on a fan belt. Just a few rubs on the belt with bar soap can solve the bar squealing problem for quite some time and save money in the process.
Rubber parts can be lubricated with silicone or dry Teflon lube products. Spraying an oil-based lube on a serpentine or poly-ribbed drive belt may temporarily alleviate the problem, but it will not solve it permanently. As well as damaging the belt, it also causes damage to the belt.
Belt dressing limits friction between parts and stops squeaking sounds in running machinery. These lubricants are ideal for flat, round, or V-shaped belts in leather, rubber, or canvas.
Your engine belts make a screech or squeal noise usually because the rubber belt is slipping on the metal pulley and just like your tires spinning on the road, this causes noise. The belt may be slipping due to improper tension or because it simply has gotten old and the surface has become glazed, cracked or brittle.
Over time, your car's engine belts may become worn causing them to stretch. When this happens as you press the gas pedal and the belt goes from a relatively low speed (at idle or when first starting the car, no speed at all) to a much higher speed as the engine accelerates, this can cause the belts to squeak.
That's why it's recommended that the serpentine belt is replaced early when the squealing symptoms are first noticed. Although it may be safe to drive with the squealing for a few days or weeks, the belt will eventually need to be replaced, and for safety, the earlier it's repaired, the better.
You can eliminate these squeaks and prolong your belt life with CRC Belt Conditioner. A simple and convenient solution, just spray on the belt of any belt-driven auto part, machine, or appliance to stop the squeaks and squeals and prevent premature wear.
Why does my serpentine belt squeal when it's cold?
The cold weather causes rubber to be less pliable and a bit brittle. As the engine pulleys turn the rubber belt at a very rapid pace, this will cause them to squeak a bit until the rubber material warms up and becomes more pliable. This may also happen when the belt needs to be tightened up.
One way to silence a squeaking or squealing belt is to apply a dab of silicone-based grease, especially if it tends to be temperature-related, but I wonder whether the cause might be more complex.
Berryman Professional Silicone Spray is an excellent lubrication, waterproofing, and corrosion protection product for most surfaces including metal, wood, rubber, and plastic.
Why does my car squeak when driving slowly? Brake pads and discs that have been fitted poorly or are worn down will often cause a squeaking noise when you drive slowly. When you press the brake pedal, the brake caliper clamps around the pad, applying pressure to slow down the movement.
Answer: Slip : When the frictional grip becomes insufficient. This may cause some forward motion of the driver without carrying the belt with it. This may also cause some forward motion of the belt without carrying the driven pulley with it. This is called slip of the belt and is generally expressed as a percentage.
The idler pulley can be deglazed with a piece of emery cloth once you have removed the belt. The pulley should be "sanded" with the cloth until it appears hazy. If you want to make sure the sprockets aren't glazed, you can deglaze them, but this takes more time and they usually aren't the cause of the squeak.
