WHY DOES MY CAR REV WHEN BRAKING?

2002 Hyundai Accent

Tiny

emc2s

November, 17, 2012 AT 1:27 PM

Why does my car rev when braking?

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3 Answers

Tiny

Wrenchtech

November, 17, 2012 AT 1:43 PM

Do you mean that if you are sitting still, idling in park and step on the brake, the RPM goes up?

Tiny

emc2s

November, 17, 2012 AT 2:13 PM

It happens when I press the brake for a full stop. It happens intermittently though but more and more lately

Tiny

Wrenchtech

November, 17, 2012 AT 2:38 PM

That could be a leak in the Vacuum booster. Have someone else hold the brake while you pinch off the vacuum hose to the booster and see if it idles back down.

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