Silicon Valley Auto Repair

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What Causes a Flat Tire?

Getting a flat tire is never a fun experience, especially when it happens while you're driving. If you do find yourself with a flat tire, the most important thing to remember is to not continue driving your vehicle until it is fixed. Driving on a flat tire can cause damage to your wheels and suspension components. 

Sometimes a flat tire can be extremely random. Here are some of the common reasons why flat tires happen: 

  • Leaky valve stems - Corrosion and wheel damage can cause cracks in the rubber stem which can leak out air. An internal air leak in the valve stem because the valve is loose, faulty or jammed with dirt can also cause air to leak out. 
  • A puncture in the tire caused by driving over sharp objects like nails, screws, steel wire from exploded truck tires, broken glass, sharp rocks, etc.
  • Bead leaks between the tire and wheel, which can be caused by rust or corrosion on the wheel or a bent rim (hitting a curb or pothole).
  • Wheel air leaks. Aluminum alloy wheels can be porous and slowly seep air over time. 
  • Low air pressure causing a blow out of the tire

We recommend carrying a tire change kit and spare in your vehicle at all times just in case you do find yourself in a flat tire situation. Be sure to understand how to change a tire safely, as well! 

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