First tire I tried it on, it worked fine. Took forever though to get from 22 psi to 36 psi. Second tire, it stopped inflating after 25 psi, which was far from the 36 psi that I had set. After that it just wouldn’t start inflating. Gave it a rest and tried again the next day. Maybe it’s overheating. It never starts inflating right away after pushing the power button, which is confusing. I made sure the number display has stopped flashing. Will it inflate or will it not? Who knows. This tool had me squat over my car for over half an hour and not get anything done and it’s not funny.