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Unread 10-11-2014, 07:20 PM   #1
Gruye
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1999 XJ Cherokee 
 
Join Date: Mar 2014
Location: St. Louis Park, MN
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What the hell are these, and other questions

Let me hit you with a stupid question; what are these?
The mystery deepened when I asked a mechanic, and he had no idea.

My guess is that they prevent the coil from compressing too far.

Front Driver:




Front Passenger:




When I replaced all my shocks, they were pretty much gone. I could compress them with my hands alone. I'm guessing that riding on just the coil, I bottomed out at some point, and broke the rubber bit off the passenger side pictured.

Worth repairing, or does it even matter?



As for my other questions, even after four new shocks, the ride isn't the best. I contributed that to the solid axles and unbalanced tires, but would adding a steering stabilizer help reduce some of the road vibration? Recommended?

And finally, my mechanical fan sounds very loud for the first minute of driving on start up, like a semi-truck. After being in gear for a minute or so, it quiets down to regular operational sound. It doesn't bother me, I actually like it and wish it would always be that loud, but I'm curious.

I appreciate any help, love the Jeep

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Unread 10-11-2014, 07:40 PM   #2
Teej
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You're right about the tubes in the coils. They're the bumpstops, which prevent the shocks from bottoming out all the way and prevent your tires from rubbing the inside of the fender.

Compressing the shocks with your hands is normal, as I could do that with my brand new sportier shocks. It shouldn't be easy, however. You got new ones, though, so you're fine anyway.

Which shocks did you get? If you got cheap ones, that could contribute to your poor ride quality. Also, I'm sure your rear leaves are sagging and possibly S shaped, which would worsen the ride. A steering stabilizer wouldn't help that. A steering stabilizer is more of a band aid for wobble in the steering, which should be addressed properly anyway.

As for the mech fan, I'm not sure. Mine is usually louder on a cold start. Could just have to do with the bearings warming up or something. Not 100% sure.



Enjoy the Jeep man. There's much to learn, much fun to have, and much blood to shed on stupid fixes.
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Unread 10-11-2014, 07:42 PM   #3
vx1kxj
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those are the factory rubber bumper stops. Sounds like a new set of springs are in order for you if you replaced the shocks. I would also recommend new control arm bushings to improve the ride quality.
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Unread 10-12-2014, 09:57 AM   #4
premo
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You might want to find another mechanic if he doesn't know what abump stop is. Enjoy the new jeep!
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Unread 10-12-2014, 12:41 PM   #5
mschi772
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Quote:
Originally Posted by Gruye View Post
And finally, my mechanical fan sounds very loud for the first minute of driving on start up, like a semi-truck. After being in gear for a minute or so, it quiets down to regular operational sound. It doesn't bother me, I actually like it and wish it would always be that loud, but I'm curious.
Yeah, if your mechanic had no idea what a bumpstop was, run away and never look back.

That's normal. The fluid in the clutch settles to the bottom when parked for longer periods, and it takes a few moments after startup for the fluid to be spun back into proper position within the clutch.

A fully engaged fan will always be that loud, but it will suck a few hp's and may even impact your MPG slightly. If you really wanted a loud fan 24/7, you could modify it to be fixed rather than on a clutch. I personally loathe the sound of a roaring fan.

Ride quality is a combination of tires, shocks, and springs. An XJ will never ride like a luxury car. P or C rated tires (touring tires if you really want to go for the gold), stock or Old Man Emu springs, and OME or Monroe SensaTrac shocks tend to be the general recommendation for best ride quality.
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Unread 10-12-2014, 02:48 PM   #6
Gruye
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Location: St. Louis Park, MN
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Thank you everybody.

That wasn't my mechanic, I've mostly been able to fix all the broken bits myself, but every now and then I walk down to the Quicklube and pick their brains for fun. One of them has a nice GTO I like looking at too, so there's a reason for some fresh air.

I'm going to be replacing the fuel pump and addressing a front wheel squeek (when I turn) this weekend or next, fun fixer-upper for sure.
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