1994 xj engine knock
12-25-2012, 10:03 PM
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Year: 1994
Model: Cherokee
Engine: 4.0L
1994 xj engine knock
i have a 1994 xj 4.0 with 188k on it and its had an engine knock for about a year now and i want to fix it. its pretty noticeable and almost sounds like a diesel truck with a more knocking sound when its at idle. the knock speeds up until i hit about 1600 rpm then it stops. it almost sounds like its coming from the bottom like a rod bearing or something. i also have high oil pressure. please help i want my motor sounding healthy again! im new here
12-26-2012, 12:21 AM
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
There is a steel dust cover facing forward on the front of the bell-housing just rear of the oil pan. If you remove a few 1/2 inch bolts, you can then reach the torque converter to flex plate bolts. (15mm?).
They are known to loosen and cause knocking. Happens! With the right tools you might fix it in just a few minutes. Or you checked something good to check anyway since they are a known problem. A start anyway!
There is at least one great writeup here on that, (in the writeup section)
They are known to loosen and cause knocking. Happens! With the right tools you might fix it in just a few minutes. Or you checked something good to check anyway since they are a known problem. A start anyway!
There is at least one great writeup here on that, (in the writeup section)
12-26-2012, 05:55 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
There is a steel dust cover facing forward on the front of the bell-housing just rear of the oil pan. If you remove a few 1/2 inch bolts, you can then reach the torque converter to flex plate bolts. (15mm?).
They are known to loosen and cause knocking. Happens! With the right tools you might fix it in just a few minutes. Or you checked something good to check anyway since they are a known problem. A start anyway!
There is at least one great writeup here on that, (in the writeup section)
They are known to loosen and cause knocking. Happens! With the right tools you might fix it in just a few minutes. Or you checked something good to check anyway since they are a known problem. A start anyway!
There is at least one great writeup here on that, (in the writeup section)
Here's the write-up with excellent photos.
https://www.cherokeeforum.com/f51/ho...ocking-125547/
12-26-2012, 06:41 AM
#5
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Year: 1996
Model: Cherokee
Engine: 4.0
sounds like loose flexplate bolts remove ur check plate and c i put my money on that happened to me forever and thought it might b rod knock but turned out to b a loose flex plate bolts
12-26-2012, 06:45 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
12-26-2012, 09:11 AM
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Year: 1994
Model: Cherokee
Engine: 4.0L
Ill check the flex plate bolts when i get home because it sounds a lot like that guys video on your link. Ill get back to you when i check it
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