Question about 1997 Jeep Grand Cherokee

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"evap canister" almost cracked off. What exactly does it do? Should it be replaced?

1997 Jeep Grand Cherokee I-6: I have just about cracked off a black box just behind the driver's side of the front bumper. I have checked the lines running to it and they read "evap canister." It also runs a hose to the box covering the exhaust valves. What is the evap canister. Is it necessary, and if so should I replace it?

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  • Anonymous Mar 13, 2014

    Clicking. Coming. From evap. Canister

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Yes, you should replace it. This canister is to take the fumes from your gas tank into your engine. You need this to pass your state smog test.

Posted on May 27, 2009

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1 Answer

Where is the evap canister located on a 1997 jeep grand cherokee laredo 4.0


On a ZJ its inside the damn bumper basically below the drivers side headlight

Mar 24, 2017 | 1997 Jeep Grand Cherokee

1 Answer

How to replace vapor canister Jeep Grand Cherokee V8


fsm quote.

All Grand Cherokee models-below the left front headlamp

no symptoms posted, so cant guess if this is bad. its not.

but you want to remove it , so you get to waste all that time doing so.

we never do this.

why not post the symptoms so good help can happen

got DTC errors, is the gas cap sealing? for EVAP failure?

that be first.



here is a list of canister ploys.



  1. i hate it and need to remove it. illegal


  2. i want to move it. ok "you tell us"


  3. it has a crack in the side, from past collisions and sucks air , fix it


  4. i got DTCs but cant remember them. pencil and paper , missing?


  5. the gas cap is bad or loose and i want to fix something harder.




see all the photos on the forum

http://www.jeepforum.com/forum/f13/best-way-relocate-evap-canister-564478/



they move it only for , wild off road front end modifications

a very unique context. but shows nice photos of front end

the FSM covers this.

why nor read the bible or post context and some symptoms if any.

or try reading this at alldata.com

see if they have instructions there.

my guess is the grill needs pulling

Jul 30, 2014 | 1993 Jeep Grand Cherokee

1 Answer

How do i remove the evap canister on a 1993 Jeep Grand Cherokee V8


unbolt it , on some cars it snaps off.
why is this not obvious>?? you look and you see what>?

by remove , i assumed its being replaced or tested.
not remove for ever, that be a whole endless topic ......????

Jul 30, 2014 | 1993 Jeep Grand Cherokee

1 Answer

2004 jeep grand cherokee code 442/455


OBD code P0442 Small EVAP leak detected you may need to check the EVAP canister under the vehicle and the purge valve as well check for cracks on the canister or the purge valve and check all the rubber hoses connected to them foe cracks or holes. If you find any damage parts replace them. P0455 which means a large EVAP leak is sometimes referred as the gas cap leak check your gas cap and secure it tight if you still have the code change the gas cap hope this helps after you find and fix the problems get the vehicle to a shop and they will use an OBD scan tool to clear the codes.

Feb 26, 2014 | Cars & Trucks

1 Answer

What would it cost to replace the hoses on EVAP on 2003 Jeep Gr. Cherokee on canister


they can look cracked on the out side but not be leaking.You need to do a leak down test of your complete system.If your lite is coming on and you had it checked and it says small leak or large leak it is most likely the small vacume pump or diaphram in the evap system.they get stuck and just leak over time.my 2001 grand cherokee does this from time to time.I just went on ebay and bought the cheapest code reader i could find $20.00 and free ship.I just erase it when my check engine light comes on.

Feb 16, 2013 | Cars & Trucks

1 Answer

Fuel cap code


Large EVAP leaks are Many times the EVAP NVLD PUMP. It should be on the side of the charcoal canister. it can also be a EVAP hose that is not properly installed or cracked really bad. So it is important to inspect to entire system first. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Feb 11, 2012 | 2002 Jeep Grand Cherokee

1 Answer

Check engine light, vapor canister, have any idea


I would start with the gas cap replacement and see if the issue resolves itself. If you do have a problem with the EVAP (canister) system, it may require tools the average person does not have to help diagnose and correct/repair.

Jul 18, 2010 | 2002 Jeep Grand Cherokee

1 Answer

2003 Jeep Grand Cherokee Laredo - Code P0456 EVAP leak


open hood and ck for broken vacuum hoses going to the purge valve(2 vacuum ports and a wiring connector)
on the drivers side between airbox and firewall
if good remove driver side rear tire and inspect hoses next to the gas tank and 3rd, the canister is in that wheel well also insp for cracked hoses there also, been working for jeep 12 years i charged people about 1 hour to correct this probem.

Dec 18, 2009 | 2003 Jeep Grand Cherokee

2 Answers

Where can i get an evap chart for 1999 jeep grand cherokee


Check under the hood for the complete chart of the vaccum routing of the EVAP.
The weak spot in the Jeep is the solonid valve and the EVAP cansiter.
If you fail the emission because of EVAP then look for the the gas fill neak for leak.
There are many potential leaky spot.
The key is DO NOT TOP OFF the gas when refilling. They excess fuel can damage the valve and canister.

Aug 26, 2009 | 1999 Jeep Grand Cherokee

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