why is the brake line whistling at fire wall? on 1991 Jeep Wrangler

brake line whistling at fire wall on driver's side

by in Palm Springs, CA on September 25, 2011
1 answer
ANSWER by on September 25, 2011
The brake line should not whistle. If it is a metal line carrying fluid it may vibrate with some engine resonance if it is not properly secured. If it is a vacuum hose the check valve may have a problem, or you have a vacuum leak in which case the engine would run poorly.