what is this for?
Seasoned Member
Joined: Dec 2009
Posts: 429
Likes: 0
From: Wichita, KS
Year: 1999
Model: Cherokee
Engine: 4.0l I6
I have been wanting to know the same thing. I have 2 vacuum lines ran there and they are connected to this black thing that looks like a small football. WHAT is that? I havent traced the lines yet as I have QUITE a few more things that are of more importance. That is behind the passenger side bumper under the lights.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
Last edited by mycherokee; Dec 15, 2009 at 03:33 PM.
"CF Moderator"
Joined: Sep 2008
Posts: 3,045
Likes: 3
From: N.J. Shore Area
Year: 1994
Model: Cherokee
Engine: l6 HO
I have been wanting to know the same thing. I have 2 vacuum lines ran there and they are connected to this black thing that looks like a small football. WHAT is that? I havent traced the lines yet as I have QUITE a few more things that are of more importance. That is behind the passenger side bumper under the lights.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
Seasoned Member
Joined: Dec 2009
Posts: 429
Likes: 0
From: Wichita, KS
Year: 1999
Model: Cherokee
Engine: 4.0l I6
OHHH so would that explain why when I toggle my switch only defrost works? LOL no vent blow?? So on the opposite end there should be 2 more vacuum lines coming out? And where would they go?
CF Veteran
Joined: Sep 2009
Posts: 5,376
Likes: 1
From: NC
Model: Cherokee
I have been wanting to know the same thing. I have 2 vacuum lines ran there and they are connected to this black thing that looks like a small football. WHAT is that? I havent traced the lines yet as I have QUITE a few more things that are of more importance. That is behind the passenger side bumper under the lights.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
His picture is missing the black piece that it connects to and the second line. Also the black piece that I am talking about has 2 slots for 2 other vacuum lines to come out of but I am missing those and have no clue where they would go.
CF Veteran
Joined: Jul 2009
Posts: 2,158
Likes: 11
From: Chico,ca
Year: 89
Model: Cherokee
Engine: 4.0
iw will also cause your engine to run rough and idle high,the lines go to the climate controls,cruise control and front axle if you have the vacuum operated axle.
Seasoned Member
Joined: Dec 2009
Posts: 429
Likes: 0
From: Wichita, KS
Year: 1999
Model: Cherokee
Engine: 4.0l I6
Can someone take some pictures of where their vacuum lines hook up at? I am missing them completely and the ones attached dont lead anywhere they are just laying in the engine housing.
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CF Veteran
Joined: Jul 2008
Posts: 1,217
Likes: 7
From: Schnecksville, PA
Year: 94 XJ
Model: Cherokee
Engine: 4.0L
The lines come into the engine bay alongside the BATTERY.
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
Thread Starter
Junior Member
Joined: Apr 2009
Posts: 89
Likes: 0
From: Cherry Valley,Ca
Year: 1993
Model: Cherokee
Engine: 4.0
The lines come into the engine bay alongside the BATTERY.
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
CF Veteran
Joined: Sep 2009
Posts: 5,376
Likes: 1
From: NC
Model: Cherokee
The lines come into the engine bay alongside the BATTERY.
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
There is a "T" connector there.
One line of the T goes to CRUISE CONTROL (if equipped. IF not, its capped.)
Then it goes straight back to the firewall.
Its runs under the lip of the firewall seam over to the driver's side of the engine, where it's connected right to the intake.
There should be a vacuum reservoir INSIDE the bumper.
If not, you may want to get one or at the very least, cap that line. Your engine will thank you.
And to all those who would just blurt out..."You don't need it. Just remove it."
I've found the PERFECT Cherokee for you:
I dig that one. Invisamode +
Ultimate Jeep
Also you forgot the bedliner.