Mechanics

HYUNDAI ACCENT RPM PROBLEM

2002 Hyundai Accent • 185,200 miles

Why does my car rev when braking?
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Emc2s
November 17, 2012.



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

Wrenchtech
Nov 17, 2012.
It happens when I press the brake for a full stop. It happens intermittently though but more and more lately

Tiny
Emc2s
Nov 17, 2012.
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.

Wrenchtech
Nov 17, 2012.