bustedbird
Registered User
I need help! My 89 SC has some problems, the bi-pass valve actuator is acting up. I just replaced the unit yesterday and am still having problems. The thing works when I start the car up and works for about a mile, but at only about 5 psi, then after a mile no boost. When I stop the car and look at the actuator, the thing is stuck open. I removed the vaccum line from the back of actuator, and it slammed shut. When I replaced the actuator, the valve on the plenum moved super easy, so I don't believe that the problem is there. Does anybody have any ideas, or cures for my cursed bird?