00 Cherokee 4x4 slight knock
CF Veteran
Joined: Jun 2009
Posts: 5,383
Likes: 5
Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Here is another thread discussing this with a better pic and the name of the part. If this is what is knocking, everything is normal evidently.
https://www.cherokeeforum.com/f2/wha...ticking-27283/
https://www.cherokeeforum.com/f2/wha...ticking-27283/
Junior Member
Joined: Dec 2009
Posts: 35
Likes: 0
From: LaGrange IL
Year: 2000
Model: Cherokee
Engine: 4.0
Junior Member
Joined: Dec 2009
Posts: 35
Likes: 0
From: LaGrange IL
Year: 2000
Model: Cherokee
Engine: 4.0
[QUOTE=bryanboonern;361673]I think this is it here. I wish I could remember the name of it. Put your hand on it while idling and see if you feel it knocking.
purge solenoid its probably sticking, replace it or clean it out with carb cleaner
purge solenoid its probably sticking, replace it or clean it out with carb cleaner
[QUOTE=petesxj;361688]Hmmm....so knocking is not normal in that?
I very much doubt that's the oil pressure sending unit. How is that going to detect oil pressure mounted on the firewall? The OPSU needs to be mounted in the block- on my jeep it's located just above the oil filter.
Purge solenoid looks and sounds a lot more reasonable.
Purge solenoid looks and sounds a lot more reasonable.
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 80
Likes: 0
From: Cincinnati OH
Year: 2000
Model: Cherokee
Engine: 4.0
thanks guys, i dont believe it is the purge solenoid because i cannot hear it from the engine bay, only from inside the cab. I am going to look at it and post up what i find on Saturday.
Thanks again
Thanks again
Mine was like that too. You can't hear it with the hood open, but you can hear it in the cab. Just put your hand on it and see if you feel it knocking.
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 80
Likes: 0
From: Cincinnati OH
Year: 2000
Model: Cherokee
Engine: 4.0
Junior Member
Joined: Dec 2009
Posts: 35
Likes: 0
From: LaGrange IL
Year: 2000
Model: Cherokee
Engine: 4.0


