Warning: I have never inflated a tire from a dead spot with this, but I have inflated a tire for cars, as well as tires for many wheelbarrows or carts. It works great for these guys. Car Tires: I had a "low pressure" warning light on my dashboard. Luckily he told me which tire was low. I connected the inflation hose to the low tire, plugged in the car power adapter, set the desired pressure in psi (check your tire's sidewall for the correct psi) and pressed start. Button. This little sucker takes care of the rest. It pumps air until it reaches the preselected psi pressure and shuts off automatically. Brilliant!