2003 Expedition Brake Pedal Hissing?

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Jun 28, 2021 | 08:44 PM

#16

Hamfisted

Laughing Gas

Joined: Feb 2003

Posts: 876

Likes: 26

From: South Florida

Quote:

Originally Posted by Big Lloyd

where is the vacuum release switch located
I just replaced the brake switch and discovered my cruise control not working and now I hear air when I drive but it stops when I break

This is a ten year old thread. But your cruise control deactivation switch is likely bad. It's the other switch there on the left side of the brake pedal. 1/4 turn counter clockwise to release the switch from the mount.
Any air leak you hear up in that area is likely your brake booster there behind the master cylinder under the hood.

Motorcraft SW5957 is the cruise control deactivation switch. It's about $10 over on Amazon.