Northern Utah BS thread #2
Senior Member
Joined: Jul 2010
Posts: 575
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From: Tooele, UT
Year: 1989
Model: Cherokee
Engine: 4.0L I6
Is there a special trick to install the oil pan? I used a felpro gasket and rtv on the corners but it is leaking. Mostly and the spot next to the transmission
CF Veteran
Joined: Sep 2010
Posts: 1,930
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From: herriman
Year: 1991
Model: Cherokee
Engine: 4.0
Junior Member
Joined: May 2012
Posts: 48
Likes: 0
From: West Valley City, UT
Year: 1988
Model: Cherokee
Engine: 4.0
So Im wondering if anyone else is going down to Moab for the NAXJA 30th Anniversary of the XJ? I was lucky enough to get the whole week off and im hoping to leave next Tuesday night or Wednesday morning.
XJ
XJ
CF Veteran
Joined: Jan 2009
Posts: 1,703
Likes: 0
From: Utardiland
Year: whats left of a 91
Model: Cherokee
Engine: one that makes noise
Not much of an update. Spent the money for it on an MJ for my son. So the ZJ is going to FF instead. But it will be going to WOTR so in about a month it will be getting worked on again
Senior Member
Joined: Jan 2010
Posts: 855
Likes: 0
From: Taylorsville, UT
Year: 1999
Model: Cherokee
Engine: 4.0L
They were kind of hurting for trail leaders, I guess. I think a lot of peeps are wanting to keep options open. It should be a great time - a LOT of Cherokees, including one being raffled off.
Seasoned Member
Joined: Jan 2011
Posts: 423
Likes: 0
From: fairview utah
Year: 1988
Model: Cherokee
Engine: 4.0
im going to blow this damn buggy up every time I get something else finished or fixed another something pops up to haunt me this time is the motor running like crap spitting sputtering backfiring through both the intake and exhaust, but it will start and idol just fine it does sound like a cammed motor when it is at idol and will smooth out IF you can get it to rev up still wont make its self move I found crusiers renix tips and am going to start at number one and work on down, only problem is my harness is weeded out anything off the big plug coming off the computer is still wired really nothing else any suggestions would be apprecitied but I do have some picture updates if I can figure out my new puter to get them on here
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Along with the tips:
MAP sensor tube
There is a brittle little tube. It comes out of a rubber plug, low on the engine side of the throttle body. It runs back to the firewall, then up to your MAP sensor, behind the valve cover, higher up on the firewall. It has one vacuum line as already mentioned, with a 3-wire plug in the bottom.
CRUCIAL!! The MAP sensor will tell the ECU to dump fuel with little to no vacuum to the MAP. Any crack or blockage and it will be pig-rich. ( black smoke, fouled black plugs, must hold your foot to the floor to keep the engine running). You can pull the line off the MAP sensor and feel for vacuum with your finger. If it runs!
A visual inspection usually reveals any issues with the line from the throttle body to the MAP sensor.
MAP sensor tube
There is a brittle little tube. It comes out of a rubber plug, low on the engine side of the throttle body. It runs back to the firewall, then up to your MAP sensor, behind the valve cover, higher up on the firewall. It has one vacuum line as already mentioned, with a 3-wire plug in the bottom.
CRUCIAL!! The MAP sensor will tell the ECU to dump fuel with little to no vacuum to the MAP. Any crack or blockage and it will be pig-rich. ( black smoke, fouled black plugs, must hold your foot to the floor to keep the engine running). You can pull the line off the MAP sensor and feel for vacuum with your finger. If it runs!
A visual inspection usually reveals any issues with the line from the throttle body to the MAP sensor.
Seasoned Member
Joined: Jan 2011
Posts: 423
Likes: 0
From: fairview utah
Year: 1988
Model: Cherokee
Engine: 4.0
so with what im am reading there are supposed to be multiple numbers at the dip stick? I only have one big cable am I messed up. would a map just go to crap all the sudden cause when you unplug it the motor just revs a bit doesn't run any different
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Got a multi-meter?


