HVAC vacuum line routing

[Jdubb1000]

Had mice eat up vacuum line coming through the firewall. Where does the vacuum line go to from the firewall?

 

[Jdubb1000]

Forgot to mention. It’s a 2002 with 4.0

 

[flyinfish]

I'd assume it's vacuum for the HVAC controls.

I'm not sure of the routing on the cabin side of firewall but here's a link to the service manuals thread where you can get a copy for your 2002.

https://wranglertjforum.com/threads...ice-manuals-fsm-technical-documentation.4618/

 

[Jdubb1000]

My bad. Yep it is for the hvac controls. I only have air blowing from defroster. Can’t find it in the manual either. There is another black line coming off the hvac junction plug that is chewed off. Now I’m wondering if that line is the vacuum supply coming through the firewall.

 

[Daryl]

Here’s the line routing. As a safety precaution when you loose vacuum your HVAC will default to defrost.

 

[Jdubb1000]

Here’s the line routing. As a safety precaution when you loose vacuum your HVAC will default to defrost.
View attachment 431766

Thanks Daryl but I need cabin side diagram

 

[Daryl]

Thanks Daryl but I need cabin side diagram

Oh, okay. This should help:

 

[Jdubb1000]

Oh, okay. This should help:
View attachment 431769

Thanks Daryl!! This is exactly what I needed.

 

[TJ4Jim]

Thanks Daryl!! This is exactly what I needed.

Welcome to the TJ forum....

If you mosey over to the Resources section the Factory Service Manuals are all available to download for a little light reading.

 

[Jdubb1000]

Welcome to the TJ forum....

If you mosey over to the Resources section the Factory Service Manuals are all available to download for a little light reading.

Lol…that takes all the fun out of asking the questions. Jk