You may be referring to the valve stem on each wheel.
A loose valve stem in your car's tire can be a safety hazard.
The valve stem should last at least as long as the tire.
The part of a car that uses a Schrader valve is the tire. The Schrader valve is commonly just called a tire valve. The valve consists of a stem, core and cap.
The recommended valve stem length for optimal performance in a car engine is typically determined by the engine manufacturer and should be followed according to their specifications.
To check for a leak, apply soapy water to the stem and look for bubbles.
Common causes of a bent valve stem in a car tire include hitting a curb or pothole, improper installation, or corrosion. Solutions typically involve replacing the valve stem with a new one, ensuring proper installation, and regularly checking for any signs of damage or wear.
To repair a bike tire valve stem, you can try tightening the valve core with a valve core tool or replacing the valve stem entirely. If the valve stem is damaged, it may need to be replaced by a professional bike mechanic.
Fit a new valve stem.
Yes, the gate valve is leaking at the stem.
often the schreader valve inside the valve stem is loose, a special insert wrench is needed to tighten.
change the valve stem seals
If the valve stem seals are bad the intake valves will "suck" oil into the cylinders. One common indicator of worn valve stem seals is to take your foot off the accelerator for several seconds when going downhill, then watch for smoke when you step on the accelerator again. If you see a puff of BLUISH smoke, you probably have bad valve stem seals. The catalytic converter can become oil fouled so that would be another indicator that you might have valve stem seal problems.