Knocking sound from transmission area
#1
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Year: 1990
Model: Cherokee
Engine: 4.0 renix
Knocking sound from transmission area
I have a 1990 xj renix with 170k and for a while there's been a knocking sound coming from near the transmission. At first I thought it was the flex plate but after going under there and tightening up the bolts with thread locker and finding no cracks, I can still hear the sound. Any ideas of what else it could be?
#2
Beach Bum
A common issue is the exhaust where it passes over crossmember. It could be making contact or the rubber isolator is worn out.
#3
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Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
^^^^^ like Steve said, check and see if the exhaust hanger is worn allowing the exhaust to hit or tap on the crossmember.
Pic from Cruisers Tech pics
Pic from Cruisers Tech pics
#4
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Year: 1990
Model: Cherokee
Engine: 4.0 renix
Just checked it out and everything looks solid there. Could it just be that the older cherokees have that sound naturally? Like I said I can't exactly remember when the sound started
#5
Beach Bum
Could also be worn motor or transmission mounts.
Is this a constant noise?
Only when driving or does it do this at idle?
In gear and in neutral?
Is this a constant noise?
Only when driving or does it do this at idle?
In gear and in neutral?
Last edited by SteveMongr; 06-16-2015 at 07:14 PM. Reason: spelling
#6
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Year: 1990
Model: Cherokee
Engine: 4.0 renix
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