CF Veteran
Quote:
No idea. Never heard of such thing.Originally Posted by dzzavid
i did some searching on this site and general googling with no luck, can any one elaborate on the emission system Bryan mentioned?
Seasoned Member
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.
Seasoned Member
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
Quote:
Originally Posted by fantic238
There is no knock sensor in a '00 ckee nor in your wife's '97.
seriously? its on the pass side mid block right behind the distributor/ cam sensor
Junior Member
[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
Seasoned Member
[QUOTE=petesxj;361688]
Quote:
purge solenoid its probably sticking, replace it or clean it out with carb cleaner
Hmmm....so knocking is not normal in that?Originally Posted by bryanboonern
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
Junior Member
Normal clicking from it is normal,but its only suppose to open at cruising speeds, and it shouldnt be loud enough to hear inside the car
CF Veteran
Quote:
That's the oil pressure sending unit.Originally Posted by petesxj
seriously? its on the pass side mid block right behind the distributor/ cam sensor
Newbie
Quote:
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.Originally Posted by fantic238
That's the oil pressure sending unit.
Purge solenoid looks and sounds a lot more reasonable.
Newbie
Correction... sorry fantic238- I didn't read your entire post- it probably would have helped if I'd of noticed the quote you included from petesxj! 
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
Seasoned Member
Quote:
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.Originally Posted by dzzavid
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
Quote:
great advice, i will try that and post results soon.Originally Posted by bryanboonern
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.
Junior Member
Quote:
Higher and actually bolted to the block, every efi engine has a knock sensor its an input to advance or retard timing. It looks kinda like a really thick washerOriginally Posted by fantic238
That's the oil pressure sending unit.