Good Day everyone. Was just at the body shop where 85 z28 is getting done. They mentioned it was running like crap when they were moving it around. Was running like a tp when I took it in, a whole tune was done prior to taking it in. Anyway I'm wondering if the servo for the cruise control would affect how the motor is running. I noticed it has vacuum lines running from it to the canister beside it. The cable has become unattached from the servo breaking the seal. Will that affect my other vacuum lines?

 

Yes - I'd imagine that you now have a vacuum leak that would be affecting the motor. Just plug that vacuum line with a screw or something and see if that makes the engine run better, then you'll know.