Vacuum Questions

[Patrick Norris]

I just put the motor back in my 91 SHO and got it all running. But I have one vacuum line assembly left over. It is possible it isn't even from the sho It may be from something else. I didn't notice and ports not having lines but I would rather be sure.

It has a "T" and a couple of hard formed lines with a rubber 90 elbow on one short hard tube coming of the T. Does this sound familar to anyone? I know my description sucks. I can post a pic if someone thinks it is from my sho.

The other question is about the cruise. My cruise didn't work I am pretty sure because the vacuum unit is rotted out. I am just removing it until I get another one but for now I need to do something with the 2 vacuum lines going to it. Should I plug both of them at the cruise end or should I join them together? Or does it matter?

Thanks in advance for any help anyone can offer.

 

[SHOracer14]

As far as the T- shaped hoses go the only thing that sounds remotely close would be the vacuum lines for the secondaries.... those lines run underneath the intake. As far as plugging the vacuum lins for the cruise you only need to plug one place. If you plug them together it will just make an annoying hiss. One of the cruise lines will hook into a black box on the driver's side of the firewall (other vacuum lines plug into it.) unplug it there and plus the end that you pulled the vacuum line from. That is for the brake switch to disengage the cruise when you hit the brake. Thats the only place I plugged on my car and it was fine. (let me know if I am incorrect on the location of anything I'm trying to remember off hand but I did it so long ago).

 

[Patrick Norris]

Thanks. Now I know what that annoying hiss is. I will change that around next time I look at it. I am pretty sure that the vacuum line is from a chev 350 I took apart around the same time as the sho. Someone must have mixed it in my sho parts.