WTF is this thing. Question for Cherokee Genius

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WTF is this thing. Question for Cherokee Genius #384794 01/21/04 09:32 PM

Joined: Oct 2003

Posts: 191

GA, Alpharetta

justdoitmikey Offline

Wheeler

Ok so my friend has a 96 jeep cherokee and wants to know wtf something is. It is behind the front bumper on the passenger side and is bolted to the bumper right by the horn. It looks like a pill, its about a 10" long cylinder about 3.5" in diameter made of black plastic. A wire runs from it to something in the engine bay on the front passenger side, and from there a cable runs to the throtle. And he commisioned me to find out what it is so I come to you guys. Any ideas?

No Monty anymore!
Looking for a 95 SR in good shape, so keep an eye out!

Re: WTF is this thing. Question for Cherokee Genius [Re: justdoitmikey] #384795 01/21/04 09:35 PM

Joined: Aug 2003

Posts: 224

Clearwater, FL (Tampa Bay area...

BoggerCJ7

Wheeler

It's a vacuum storage for the engine.

Chris

1983 CJ7 with 1.21 giga-watts and a supercharged flux-capacitor

Re: WTF is this thing. Question for Cherokee Genius [Re: BoggerCJ7] #384796 01/21/04 09:50 PM

Joined: Oct 2003

Posts: 191

GA, Alpharetta

justdoitmikey Offline

Wheeler

Ok... Whats it do? Can It be moved? And Where can it be moved seing as to he's getting a new bumper?

No Monty anymore!
Looking for a 95 SR in good shape, so keep an eye out!

Re: WTF is this thing. Question for Cherokee Genius [Re: justdoitmikey] #384797 01/22/04 01:51 AM

Joined: Oct 2003

Posts: 7,768

Central Texas

BigJim

Web Wheeler

<img src="/forums/images/graemlins/drunk.gif" alt="" /> Howdy Mikey
Sure move it anywhere you'd like... just be sure to KEEP it! You WILL need the vacuume at one time or another.
Big Jim

professional bovine relocation specialist

Re: WTF is this thing. Question for Cherokee Genius [Re: justdoitmikey] #384798 01/22/04 04:07 PM

Anonymous

Unregistered

that is the vacuum tank for the cruise control. so if you don't want to use the cruise control you don't need that tank.

Re: WTF is this thing. Question for Cherokee Genius #384799 01/22/04 07:54 PM

Joined: May 2003

Posts: 36

Pepperell, Massachusetts

griffith

Getting the Wheeling Fever

There are other things that need a vacuum reserve besides the cruise control. The heat/AC controls work when the car is off, and I believe they are vacuum operated, based on the noise I hear when I change from heat to vent to defrost. It is possible that they have their own reserve tank though.

1986 Isuzu Trooper, 2.3l, 119k miles when acquired 3/1996, 231k at time of death 9/21/03.
1995 Jeep Cherokee Sport 2-door 4x4, 4.0l, 5-speed, 85k miles when acquired 11/2003, 138k now.

Re: WTF is this thing. Question for Cherokee Genius [Re: griffith] #384800 01/22/04 07:58 PM

Anonymous

Unregistered

sorry about that. you're right the cruise and the a/c and heater controls work off the same tank. <img src="/forums/images/graemlins/ignore.gif" alt="" />

Re: WTF is this thing. Question for Cherokee Genius #384801 01/23/04 02:02 AM

Joined: Oct 2003

Posts: 7,768

Central Texas

BigJim

Web Wheeler

<img src="/forums/images/graemlins/drunk.gif" alt="" /> And the front wheel lock in...if it is a 4X4!
Big Jim

professional bovine relocation specialist

Re: WTF is this thing. Question for Cherokee Genius [Re: BigJim] #384802 01/25/04 06:08 PM

Anonymous

Unregistered

Quote

<img src="/forums/images/graemlins/drunk.gif" alt="" /> And the front wheel lock in...if it is a 4X4!
Big Jim

Didn't they quit using vacuum for hub locking a long time ago?
I was looking in my 97 cherokee shop manual. It looks like that vacuum resivor is pretty much for all the vacuum gizmos. It needs it because when the engine is at heavy loads, vacuum drops to almost nothing. so you need a temporary reserve. I moved mine a little bit when I put on an ARB bumper. It's still mounted inside the new bumper though. Move it anywhere you want

Re: WTF is this thing. Question for Cherokee Genius #384803 01/25/04 11:04 PM

Anonymous

Unregistered

if your cruise control doesn't work and you don't plan on fixing it then get a vacuum tank out of a cherokee without cruise, they are round and smaller and easy to relocate. on older cherokees the ones with the np242 transfer case didn't have the vacuum disco. axle and the ones with the np231 did. this has been my finding after crawling around a bunch of them at the junkyard and the ones that i have worked on, but i use this as a guideline i don't know for sure if all of them were like that.

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