I would like to know more bout the brakes on a fiero, now I have replaced everything you can about replace on the the brake system bled several times but I am having trouble with my brakes and my idle. While my car is running I hit the brakes while in park everything is fine but I put it in reverse I do hear a whooshing sound but here is the thing my pedal goes to the floor. But I will pump it a few times I will gain some pressure but I wait a few seconds it is gone again low pedal. I put car in drive or reverse hit the brakes it acts if it is going to die. I don't understand wouldn't it have a high pedal and hard to press if booster is bad? I replaced it last year along with my master cylinder

There still is air in the brake system. The idle is a separate issue.

[This message has been edited by Gall757 (edited 06-26-2015).]

Booster will not cause hydraulic problems, your pedal to floor. Air you hear is likely normal as booster is just trying to do it's job on a low/no pedal problem.

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