Vacuum Ball removal

LBoogie

Boost Addict
I want to get rid of the vaccum ball and put a cai down there, would I encounter any problems with out the ball...or should I try to relocate it?
 

Loeryder

New member
Re: Vacuum Ball removal

No problems deleting it.

All it does is store vacuum in reserve so that you can use cruise and AC controls while under boost.
I yanked mine removed the vac line and plugged it at the main harness.
No problems to date except I have more room under my battery tray for an external ATF filter.
 

blk00z28

Forced to by choice
Re: Vacuum Ball removal

Loeryder said:
No problems deleting it.

All it does is store vacuum in reserve so that you can use cruise and AC controls while under boost..

That is only under boost correct? What will the AC do when hitting boost shut off?

I've been thinking about ditching mine as well.
 

Flyin Ryan

hated cuz he drives fords
Re: Vacuum Ball removal

blk00z28 said:
That is only under boost correct? What will the AC do when hitting boost shut off?

I've been thinking about ditching mine as well.

Just ditch the AC too, that way you won't have to worry about removing the vac ball :)
 

Syclone Rob

Its all ABOOT the SYTY eh
Re: Vacuum Ball removal

what I did was purchase a vacuum ball off a 1996+ jimmy... really small and it works great!!

syclone (161).jpg


syclone (162).jpg


I have it mounted to a single bolt, but I plan to properly mount it to the truck since I plan on doing a battery relocation.

Rob
 

12secondSY

Syty Killer :(
Re: Vacuum Ball removal

My battery is relocated and the factory vacuum ball is wedged into the fender. It stays in place, but looks tacky. So cruise will work fine without it? I still want to be able to use cruise and A/C on the highway. If under boost for a short time will it still work ok?
 

Loeryder

New member
Re: Vacuum Ball removal

Everything still works just fine without it.

There will be a short lag if you are on the edge of boost, or the vacuum powered device will not function until the intake pressure drops back into vacuum.
 

blk00z28

Forced to by choice
Re: Vacuum Ball removal

OK, just how many vac lines can you go taking out with this ball removed? I have the ball and main feed line going to it gone, but there are a few others back there, that also go into the intake. Can I plug all of those as well or no?

Also, what is the big black canister looking thing on the drivers side under the headlight? It has a rather large vac line going to it as well???
 

Loeryder

New member
Re: Vacuum Ball removal

The vac ball will T into the main vac harness at the back of the intake.
The other line that goes through the firewall is necessary for your AC controls.
The rest are either your Fuel press regulator or EGR.

The big can under the drivers headlight is the fuel vapor canister.
It takes its vac off the front of the TB and is the only device on the circuit.
Some have removed it with no side effects, but on a street driver I would leave it there for safety's sake.
 

blk00z28

Forced to by choice
Re: Vacuum Ball removal

What does that vapor canister do? (sorry, dont know anythign about it)

OK, cool, I can delete the EGR lines as well as the vac ball lines. Thanks for the info on the AC line though. I wondered if I could cap that off or not.
 

Loeryder

New member
Re: Vacuum Ball removal

The vapor canister is a charcoal filter that uses the vacuum to suck the fumes out of the gas tank, filters them and <edit> pulls them into the intake for consumption</edit>.

Without it the vent tube coming from your tank is releasing flammable fumes that could be ignited by any spark under your vehicle. Plugging the vent causes pressure to build up in the tank.
 
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Flyin Ryan

hated cuz he drives fords
Re: Vacuum Ball removal

Loeryder said:
The other line that goes through the firewall is necessary for your AC controls.

Jason,

So If you have deleted the AC system but still want heat, could you cap off this vac line without effecting heater controls and function? sorry for the stupid question but I know nothing about the heating and air condition systems..
 

Loeryder

New member
Re: Vacuum Ball removal

Boostedpimp said:
Jason,

So If you have deleted the AC system but still want heat, could you cap off this vac line without effecting heater controls and function? sorry for the stupid question but I know nothing about the heating and air condition systems..

I believe you would also loose the function of switching from floor to dash vents.
That is the flapper valve that is vacuum controlled and often fails if the vac lines in the dash are damaged. (as are mine, so I have researched this pretty deep)
 

bezerk

New member
Re: Vacuum Ball removal

Boostedpimp said:
Jason,

So If you have deleted the AC system but still want heat, could you cap off this vac line without effecting heater controls and function? sorry for the stupid question but I know nothing about the heating and air condition systems..

no. you need that vacuum line to still be able to control the flow of air.
 

Loeryder

New member
Re: Vacuum Ball removal

I will still flow without it but all of the air will be coming out the floor vents only.
 

Tooky

Serious about performance
Re: Vacuum Ball removal

Removing the vacuum ball basically has no noticeable side effects whatsoever. I certainly have never missed mine since deleting it 5 years ago and I use the cruise control every time I hit the freeway.
 
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