xjmuddigger

i have a 1991 xj,i have a/c but i dont use it(cuz it dont work),duz the vacuum make the heat work as well? and what about my 4wd? i was gonna remove it since if i dont need it cuz ima take my bumper side caps off and trim my fenders

1996XJSport

The entire Heat/AC control module in your dash works off the vacuum system. If you have cruise control, you're going to be SOL'd without it. I think the transfer case runs off it too. So yeah i'd leave the thing on. What you can do to keep it out of sight is extend the existing vacuum line, and bolt the resivuar to wherever you want.

xjmuddigger

ok thanx

1996XJSport

No problem.

Bimmer_2002

It controls your cruise and your vents inside the Jeep. Without that canister you won't have any air coming by the top of your dash. I moved mine right over the oil filter in the engine bay, it's zip tied there. I moved it there when I changed my bumper. You have enough of the stock vacuum line to move it there.

xjmuddigger

tomorrow i will move it to another location,but what about the horn?,its right beside the vacuum ball

Bimmer_2002

??? I only had to move that canister, didn't have the horn in the way...

Desert Rat

When I did my new front bumper I moved the vac canister to the engine bay using a piece of vac hose to reach where I wanted it. The horns I relocated highter up on the fender brace so they would be hidden behind the new bumper. HTH.

xjmuddigger

i moved it 5 min. ago and i moved it near my oil filter and distributer,i actually broke the line,it had a hole in it but when i moved the line it broke completely,i repaired it and now my xj starts ALOT better and faster,could a hole in that hose have made it take longer to start?

Macky

yup it was unregulated air making its way into the intake manifold

xjmuddigger

thats what i expected,but it made a huge difference,im glad i did it

1996XJSport

EVcherokee

I pulled my vacuum football and just plugged the hose for the HVAC in the intake. It still works at cruising speed, just really slowly. Sometimes if I'm changing vent modes i sharply let my foot off the gas the the mode snaps where it needs to. The vacuum ball just makes sure it works %100 of the time.