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Snakebite flat? inflation pressure pothole dent rims balance wobble hop true
Second flat sounds like a snakebite due to insufficient pressure for the size of the edge hit. Look real closely at that rim for a low spot.
(I bought a nice running 07 Yaris base hatch w/ 135k miles. It had a vibration on the test ride I thought might be a wheel out of balance. Found 50 pounds cold in the stock size front tires, which had thinner tread than same type rears. So, I did a same-side front-to-back rotation and reduced pressure to spec. Better. Went for balance w/ a sharp mechanic who lets me observe. One of the tires that wasn't quite true spinning was on a wheel that had a slight low spot I'd noticed earlier. He banged it out w/ a hammer (nice feature of steelies), and the car is now smooth up to the highest speed I'll use.)
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