Why are there air leaks in aluminum wheels?

Aluminum Wheel Air Leaks. Slow air leaks may occur in cast-aluminum wheels because of porous wheel castings. Perform the following procedure to repair the air leak. 1. Remove the wheel and tire assembly and inspect the wheel for structural damage.

How to fix a slow air leak in a wheel?

Slow air leaks may occur in cast-aluminum wheels because of porous wheel castings. Perform the following procedure to repair the air leak. 1. Remove the wheel and tire assembly and inspect the wheel for structural damage. If the wheel is damaged, replace it.

What to do about leaky alloy wheel rims?

Just wondering. Rims with corrosion can be repaired with a product like plastic steel which is used to fill in imperfections and then sanded down. It’s not likely a shop would do this and it would be left up to a DIYer to try this on bare rims and then have tires mounted.

Can a rim leak cause underinflation on a car?

Alloy wheels have become an increasingly common feature, even on relatively inexpensive vehicles. Loss of tire pressure caused by corrosion-induced rim leaks can lead to dangerous underinflation.

What causes corrosion on aluminum wheel lug holes?

Water and air combined with aluminum alloy creates aluminum oxide corrosion. Damage to the clearcoating usually occurs in areas where the wheel is exposed to the most friction and stress. Early signs of coating damage may appear around the wheel lug holes. Bubbled or discolored coating areas are a tip-off.

Why are there air leaks in aluminum wheels?