What is an "air check valve"? NT
12-09-2002, 02:43 PM
#2
Burning Brakes
Join Date: May 2001
Location: Hermosa Beach, CA
Posts: 817
Likes: 0
Received 0 Likes
on
0 Posts
A small metal part that restricts air coming from the secondary air injection fan to travel one direction (outwards). It is a cheap, easily rusting, part.
