vacuum canister needed? -
LinkBack Thread Tools
post #1 of 3 Old 11-10-2013, 07:49 PM Thread Starter
Registered User
2001 TJ Wrangler 
Join Date: Sep 2013
Location: Farwell
Posts: 39
vacuum canister needed?

My jeep does not have the canister located under the drivers side front bumper. that's probably why my cruise and heater control does not work. Can't I just plug off the end of the vacuum hose to get vacuum I need or do I have to have the canister?

roadcruzer is offline  
Sponsored Links
post #2 of 3 Old 11-10-2013, 10:09 PM
Registered User
1996 ZJ 
Join Date: Oct 2005
Location: Palm Desert
Posts: 914
I believe that's a charcoal canister, not vacuum. However, I think that if it's lines aren't plugged you have a giant vacuum leak.
jm8881 is offline  
post #3 of 3 Old 11-10-2013, 11:24 PM
Registered User
1995 ZJ 
Join Date: Dec 2010
Location: Norman
Posts: 2,348
The vacuum reservoir is under the battery tray. Make sure the supply line from the intake manifold is all good, not cracked or broken anywhere. It runs from the intake, to rear of engine, across the firewall, tee's to the HVAC inside, keeps going to another tee right at the cruise servo on pass inner fender and then goes forward to under the battery tray. There should also be a vacuum check valve where it connects to the manifold.

If the HVAC is stuck on DEF and nothing else the line is probably broken in half or cracked/split up real bad. If the HVAC works but goes to DEF under acceleration then there is probably a small crack in the line or the check valve is faulty.
jnicewan is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome