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XJ Ask the Question Thread
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by Nperryman
You can also test the clutch by getting the jeep to operating temperature, open the hood, and have someone turn the jeep off while you watch the fan. If it spins for a bit after the jeep is turned off, then the clutch is going bad. Mine spun for an extra 5 seconds before I replaced it, and most of my overheating problems went away.
Newbie
Joined: May 2012
Posts: 3
Likes: 0
From: channelview, tx.
Year: 1992
Model: Cherokee
Engine: 4.0 liter
New to this site (and computers really). Not sure if this is where I can ask questions or not. Help and guidance would be much appreciated. Problem is (among other things) I'm using an "Auto Xray ez read 2000" and getting code 54 which states 'no fuel sync or high data rate signal detected during engine rotation" which does not match what I've seen in other code lists which say "camshaft sync/distributor". What gives? I'm in a major bind and need serious help, please. Thank you in advance, usssanjacinto.
CF Veteran
Joined: Nov 2010
Posts: 15,581
Likes: 8
From: some small town oregon
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by usssanjacinto
New to this site (and computers really). Not sure if this is where I can ask questions or not. Help and guidance would be much appreciated. Problem is (among other things) I'm using an "Auto Xray ez read 2000" and getting code 54 which states 'no fuel sync or high data rate signal detected during engine rotation" which does not match what I've seen in other code lists which say "camshaft sync/distributor". What gives? I'm in a major bind and need serious help, please. Thank you in advance, usssanjacinto.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
You can also test the clutch by getting the jeep to operating temperature, open the hood, and have someone turn the jeep off while you watch the fan. If it spins for a bit after the jeep is turned off, then the clutch is going bad. Mine spun for an extra 5 seconds before I replaced it, and most of my overheating problems went away.
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by salad
What about slipping the belt off and heating the clutch with a torch? Grab the pulley and try to spin the blades. Should be much faster.
CF Veteran
Joined: Nov 2010
Posts: 3,251
Likes: 0
From: Frisco, Tx
Year: 1994
Model: Cherokee
Engine: 4.0
Originally Posted by usssanjacinto
New to this site (and computers really). Not sure if this is where I can ask questions or not. Help and guidance would be much appreciated. Problem is (among other things) I'm using an "Auto Xray ez read 2000" and getting code 54 which states 'no fuel sync or high data rate signal detected during engine rotation" which does not match what I've seen in other code lists which say "camshaft sync/distributor". What gives? I'm in a major bind and need serious help, please. Thank you in advance, usssanjacinto.
Seasoned Member
Joined: Feb 2012
Posts: 317
Likes: 1
From: Lynn, MA
Year: 88
Model: Cherokee
Engine: 4.0
Originally Posted by Nperryman
You can also test the clutch by getting the jeep to operating temperature, open the hood, and have someone turn the jeep off while you watch the fan. If it spins for a bit after the jeep is turned off, then the clutch is going bad. Mine spun for an extra 5 seconds before I replaced it, and most of my overheating problems went away.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Newbie
Joined: May 2012
Posts: 3
Likes: 0
From: channelview, tx.
Year: 1992
Model: Cherokee
Engine: 4.0 liter
Sorry, '92 2dr 4wd xj laredo 4.0 ax15. Went to store last night, came back out and it wouldn't start. The night before when rolling into the gas station it kinda coughed once and died but started immediately, now this!
CF Veteran
Joined: May 2011
Posts: 1,458
Likes: 2
From: Glendale,Az
Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
My a/c compressor in my 1988 Cherokee 4.0 keeps disengaging while driving. It will start to blow warm, I'll turn it off, a half mile later turn it back on an ad it starts blowing cold again. What could it be?
Seasoned Member
Joined: Jun 2011
Posts: 419
Likes: 0
From: Wichita
Year: 1987
Model: Cherokee
Engine: 4.0
Originally Posted by DESERTXJ206
My a/c compressor in my 1988 Cherokee 4.0 keeps disengaging while driving. It will start to blow warm, I'll turn it off, a half mile later turn it back on an ad it starts blowing cold again. What could it be?





