If your alternator belt squeaks, or your power steering belt starts slipping, the noise can be infuriating. With this specially formulated spray from WD-40 Company, squealing belts are no problem at all. Just spray a little WD-40 Specialist Automotive Belt Dressing with the engine running.

What can I put on serpentine belt to stop squeaking?

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.

Can I use silicone spray on my serpentine belt?

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.

Why does my serpentine belt squeal when I start my car?

Belt Slippage

Cold and dew can affect the shape and grip of a serpentine belt. So if you start your vehicle and it squeals for a little while and then stops, this is your issue. This is more likely to occur in older belts, so replacing the belt is the easiest way to go about fixing it.

How do I prolong my serpentine belt?

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.

How to QUIET a squeaky belt

Does belt dressing ruin belts?

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.

How long will a squealing belt last?

The good news is a serpentine belt can last up to 50,000 miles or five years, with proper maintenance, before it needs replacing. Heat and friction of normal use slowly wear down the belt before it breaks.

What does a bad serpentine belt tensioner sound like?

One of the most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.

Will a brand new serpentine belt squeal?

If the replacement belt isn't installed properly, even a brand new belt and new belt pulley won't stop the squealing noise. Fortunately, it's quite easy to detect this issue. If you've just got a new serpentine belt installed and yet you hear the squealing noise, chances are your mechanic didn't do a good enough job.

What happens if you get oil on your serpentine belt?

The serpentine belt usually drives ancillaries like the alternator, water pump, air conditioning compressor and the power steering pump. Oil on the belt could cause the belt to slip. If it slips while you are turning the steering wheel, then the steering could become difficult to turn due to a loss of power steering.

Where should you not use WD-40?

But Don't Spray It On:

1. Door hinges. Sure, WD-40 will stop the squeaking, but it also attracts dust and dirt. ...
2. Bike chains. WD-40 can cause dirt and dust to stick to a chain. ...
3. Paintball guns. WD-40 can melt the seals in the guns.
4. Locks. ...
5. iPods and iPads.

Is WD-40 corrosive to rubber?

WD40 is just a penetrating oil spray - it's not a caustic rust remover or some aggressive chemical. Just a "water displacing" (WD) oil spray and its generally pretty safe (safe for paint, chrome, rubber, glass, body plastics - most materials cars are made out of).