GM Truck Club Forum banner
1 - 1 of 1 Posts

·
Super Moderator
Joined
·
3,417 Posts
On my 91 Sub, it runs 60PSI for quite some time, usually it takes a decent amounf of interstate driving before it'll drop it's pressure to 45psi when idleing. I wouldn't think it should go any lower than 30PSI, or you have a problem on your hands....
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top