Calgary Jeep Association
4x4 Related Groups => Tech Talk => Topic started by: GiS on September 29, 2006, 09:33:15 AM
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2002 TJ.
Removing the front fenders, on the passanger side there is a black box inside the fender (read: under the battery)...What does this do?
It has one line or hose running into it, I broke that off and heard a little "air" escaping...What does this box do besides get in my way?
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I broke that off and heard a little "air" escaping...
It's in your way now!
I think you are talking about the ac condenser? If you have air conditioning.
This link might help.
http://www.stu-offroad.com/body/ac/acleak-1.htm
Its under the battery tray.
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I dont have AC...Now I am really scared! :lol:
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It's a vacuum canister, you need it.
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Does it control the heater? Thats how you get that "psstt" when you change heater settings?
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Does it control the heater? Thats how you get that "psstt" when you change heater settings?
Yes and no, it holds vacuum so when the engine vacuum drops you still have reserve.
A typical symptom of a leaky vacuum canister is when you are accelerating and the engine vacuum drops, the heater control will change from floor or vent setting to the default defroster setting.
Vince
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Hrmm, time to get out the super glue and plasti-weld I guess :shock:
Really wish I could just ditch it, I dont mind the heat going to my feet when accelerating??
Its just one more item I have to re-locate :cry:
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hmmm..thats what that is...i had to relocate it to put in my snorkel......
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Hrmm, time to get out the super glue and plasti-weld I guess :shock:
Really wish I could just ditch it, I dont mind the heat going to my feet when accelerating??
Its just one more item I have to re-locate :cry:
Close, the heat will redirect to the defroster when the system loses vacuum. If you don't mind that, ditch it.
Vince
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A typical symptom of a leaky vacuum canister is when you are accelerating and the engine vacuum drops, the heater control will change from floor or vent setting to the default defroster setting.
Vince
Is this the same on any Jeep (89 Comanche). I've been wondering why I lose air coming through vents. And is it just accelerating, because my floor and side vents just stop working on the highway and goes back to the defrost vents.
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hate to intrude on the thread but im installing a new front bumper and in order to do so i need to remove the vacuum canister, since this is my daily driver can i drive around town with it completely removed, or will it damage something
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im guessing you searhced for this topic? thats an old one! if you leave it unhooked you'll have a vacuum hose unhooked and it wont like that, you could plug it i guess. or just move it to the fender and zip-tie it down.
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Thanks I was just basting cause this bumper might take two days
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Disconnect the "baseball" and put a screw in the end of the airline. The vacuum controls the vent settings, and cruise control. Ask me how I know. ;) ;) :o
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On an older jeep that has a vacuum disconnect axle it keeps the front axle locked in when in 4wd. On my old '89 xj it had a cracked reservoir and I would lose 4wd when flooring it up an icy hill.
I relocated the reservoir to under the coolant pressure bottle. Fit nicely there, not sure why they didn't do that from the factory.
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Ya I was wondering cause I don't have a full six hour day to work on my bumper, and the canister has to be moved to a spot where the new brackets can fit so I thought if I could remove it for a day or two I would be fine; it's a 2000 Cherokee sport 4.0 i6
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Ya I was wondering cause I don't have a full six hour day to work on my bumper, and the canister has to be moved to a spot where the new brackets can fit so I thought if I could remove it for a day or two I would be fine; it's a 2000 Cherokee sport 4.0 i6
I have a 2001 and had to leave it disconnected for a few days. The vents didnt work just defaulted to the defrost. It wont hurt your jeep any for a couple days, just wont have vents. Simplest solution was already given though, just temporarily use some zip straps to hold it to something till your bumpers done. I ended up pulling the hard line back up into the engine bay and cutting it shorter. Then i took the rubber end that connected to the baseball and put it on the shortened line. The canister now sits up on the fender wall under the hood. Vents work again!
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I relocated the reservoir to under the coolant pressure bottle. Fit nicely there, not sure why they didn't do that from the factory.
For the same reason they use regular head bolts on the whole transmission except for the one you can't see up top. ::)