Honda Car Forum

this pertains to a 1998 honda civic LX, at, ac, 163000 miles:
recently during the last few months whenever i'm travelling at between
20 and 40 mph and i've had to brake very suddenly and very hard, the
engine stalls as soon as the car comes to complete stop. never used to
do that before. engine starts up w/o any difficulty afterwards. a/c
is NOT on when this happens. engine does NOT do this when i brake
normally, i.e., non-panic stop.
any ideas on what's causing this and what components to check? any
advice would be greatly appreciated .....
tia.

sounds like an internal or external vacuumm leak at the brake booster.
start the car, leave it in park... press the brake pedal hard....does the
idle change? if so its the brake booster, valve or vac. line.

mac1833 wrote:
> sounds like an internal or external vacuumm leak at the brake booster.
> start the car, leave it in park... press the brake pedal hard....does the
> idle change? if so its the brake booster, valve or vac. line.

tried this and the idle does not change. any other ideas? thanks.