My Mazda shuts off when I apply the brakes. Can anyone help me with this problem. It idles just fine but when I apply the brake to put it in reverse it bogs down and completely shuts off. What could be the reason for this?

1 Answer 1


The problem could be due to vacuum or electrical. The breaks are equipped with a vacuum power booster. If the power booster is broken it could induce a very large vacuum leak when you hit the breaks. Try clamping off the hose that is between the power booster and the intake manifold with a set of needle nose vice grips or a hose pinch off tool. If the car stops stalling then you need a new power booster and if it does not then look at possible electrical causes.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .