Mysterious knocking noise
#1
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Year: 1991
Model: Cherokee
Engine: 4.0 L
Mysterious knocking noise
So, for awhile now I have been hearing a mysterious light knocking/vibration noise coming from what feels like the transmission/flywheel area of my 91 xj. I'm not sure if it's a mount loose or something more severe. I did have to tighten my torque converter bolts awhile back, heck of a noise there!. This noise does not change if in neutral or in gear. This is fairly intermittent and doesn't affect the driving . I'm wanting to make sure before I would have to drop the trans and check the flywheel bolts. Any suggestions on what it could be?
#5
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Year: 1991
Model: Cherokee
Engine: 4.0 L
I was able to replicate the noise. the vibration/tapping noise only happens in drive. I shifted between drive,neutral,reverse,park. only in drive. The noise isn't the same as when the torque converter bolts were loose.
Heres a link to the video.
http://1drv.ms/1M4zG20
Heres a link to the video.
http://1drv.ms/1M4zG20
#6
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
https://www.cherokeeforum.com/f51/ho...ocking-125547/
And
https://www.cherokeeforum.com/f51/ch...xplate-172081/
So anyway here I am all cocky and likely wrong >>
#7
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Look to see what's clunking right here.
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#8
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Year: 1991
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Engine: 4.0 L
I'm gonna recognize that! I tightened mine around 175K, and notice the knock still (now) at over 280K. Had I done it better with lock-tight it might be better. See>
https://www.cherokeeforum.com/f51/ho...ocking-125547/
And
https://www.cherokeeforum.com/f51/ch...xplate-172081/
So anyway here I am all cocky and likely wrong >>4.0 Cherokee Jeep engine knock..... rod - YouTube
https://www.cherokeeforum.com/f51/ho...ocking-125547/
And
https://www.cherokeeforum.com/f51/ch...xplate-172081/
So anyway here I am all cocky and likely wrong >>4.0 Cherokee Jeep engine knock..... rod - YouTube
That sounds like it! I'm going to check the bolts again.
#9
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Year: 1999
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Engine: 2464cc petrol
this sounds exactly like mine! (2.5 though and manual tran). did you find what is making this rattle? local mechanic goes for hydraulic lifters, but I'm not sure...
#10
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Year: 1999
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this sounds exactly like mine! (2.5 though and manual tran). did you find what is making this rattle? local mechanic goes for hydraulic lifters, but I'm not sure...
#11
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Year: 1990
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The 2.5 was also known for piston slap.
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