On my new Camaro, there's this plastic 'sphere' sitting in the engine bay. It's not connected to anything, it's just THERE. WTF is it and should it be connected to something???

 

I have that on my car. I was going to remove it, but my dad said it was a vacuum tank of sorts to operate the flaps that control the heating and cooling ducts in the car.

 

vacuum tank. It should be connected to your cruise control, if not, make sure you don't have a vac leak.

 

There's nothing connected to it at all. Can someone point the way to a vacuum diagram so I can hook the thing up? If this is the reason my cruise control doesn't work, that'll be one problem down and a few to go! Thanx guys!

 

Ive never seen the vac tank in the engine bay like that. Every ones ive see on a thirdgen is in the fender. I need to remove mine it does nothing now...along with tons of other crap that is no longer used

 

wait a minute, thats for cruise control!?

I have that under my fender and I don't even have cruise control!

I thought it was for emission purposes.

 

hahaha, I have that damn sphere thing too but mine is underneath the charcoal canister... I'm gonna hvae to take a look tomorrow to see what mine is hooked up to cause I don't have cruise installed from the factory or after either!

 

I also have mine below the charcoal canister, I'm am pretty positive it's for emissions, there is a vacum line that goes from the sphere to one of the charcoal canister connections if my meory serves my correctly, I'll also check tomorrow.

 

Can you get cruise control on a 4 speed '79 Camaro? I thought cruise was only for automatics, BUT when we got the 350 i have now out of the '79 Z28, it was a 4 speed car (i saw the car before the motor was out) but when i got the engine, i noticed that cruise control ball... but mine was the size of a baseball.

 

here is a diagram for vacume lines.. i dont recall the sphear beeing in the diagram...

 

This is part of the cruise control system!! Want proof, here it is.

 

wtf. why do Ihave thatin my car then, I oging ot my car right now tolook @ it, be back with result ina couple of minutes.

 

oookkkkk... I was wrong about the emisisons stuff lol.

My sphere goes & connects to a splitter, one end goes to where I can't see, the other goes to the connector on the back pass. side of the plenum! you know the one next to the fuel reg. connector.

How wierd is that.

 

Here is the diagram pic of what mine connects to. it splits half way to hat one & the other vacumn line goes *** know where.

 

It is a vacum resevoir. It is used for Vacum controlled cruise It helps keep the vacum up and charged basically. I would only remove it if you have no cruise ....

 

i'll leave mien in, doesn't do any harm being where it is.

 

I have one of those in my toilet

 

It is a vacuum resevoir. It's main purpose is to provide enough vacuum to operate the AC, heating and defrost ducts inside the car. The doors in the heater/ac are controlled by vacuum actuators. It stores vacuum so you can operate the ac/heater doors at any engine speed or load. If you have cruise control it also supplies constant vacuum to allow for speed adjustment.

So I'd leave it in there if you want your ac vents to work.

-Dave

 

aww ****... mines loose.. and i dont have cruise.. OR AC cause i just took mine out... sonovabitch i spent like 2 hours trying to make that damn thing stay in the fender cause it has 1 broken tab on it... damn thing...


so if i remove it.. its not going to do something to my engine vacumm is it??

 

Removing it won't affect your engine vacuum as long as you plug up the vacuum lines/ports that run to it. I dont have cruise sontrol on my car and I never did either and I have it. My dad used to work at a Chevy dealership in the 70's and he said it was for the heating ad cooling ducts like Arntzman said. But I suppose it could do something involing cruise control. However, if you want to have your cruise control work and your air ducts open and close, I would leave it in.

 

One day i heard this strange noise as I was driving..kinda grinding clack clack..WTF! I stopped Got out looked under the car, and there it was bouncing off the road!! One quick jerk...problem solved!

 

ROTFLMAO Funniest thing I've heard all day Rob!!

Seriously though, is this 'vacuum reservoir' only there on certain years of thirdgen? I have a 89 GTA with working cruise control that doesn't have it. Or is it under the charcoal canister on my year of car?