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Just bought my Cheokee xj a week ago. I noticed something weird . When I open the hood, the jeep running, it runs great, no nocking , no ticks, oil pressure is at 40 warm, doesn't smoke, but when I walk to the driver side of the Jeep, I hear like a knocking ? So I go back to the engine bay, and nothing, go back to the driver side, buy the front tire, and I hear this knocking !!!!!!!!!!! Is this my motor !? I hope not, I just spent all my money on this jeep, and cant afford a rebuild.
Seasoned Member
Joined: May 2012
Posts: 436
Likes: 0
From: Ware Shoals, SC
Year: 1993
Model: Cherokee
Engine: 4.0L
Just bought my Cheokee xj a week ago. I noticed something weird . When I open the hood, the jeep running, it runs great, no nocking , no ticks, oil pressure is at 40 warm, doesn't smoke, but when I walk to the driver side of the Jeep, I hear like a knocking ? So I go back to the engine bay, and nothing, go back to the driver side, buy the front tire, and I hear this knocking !!!!!!!!!!! Is this my motor !? I hope not, I just spent all my money on this jeep, and cant afford a rebuild.
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
CF Veteran
Joined: Oct 2011
Posts: 1,812
Likes: 0
From: South Mills, NC
Year: 1998
Model: Cherokee
Engine: Rebuilt 4.0L I6
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
At idle, rez the engine to 2500 and hold and see if it misfires. Chances are you may need to steam clean your engine or so ething is just lose
CF Veteran
Joined: Oct 2011
Posts: 1,812
Likes: 0
From: South Mills, NC
Year: 1998
Model: Cherokee
Engine: Rebuilt 4.0L I6
We used it as a test vehicle for today's class. We tested the compression of each cylinder, we also did a cylinder leak test. So I don't know if we screwed anything up or it was acting like that before.






