Squeaky suspension, and 'knocking noise" when hitting bumps at higher speeds

11735 Views 14 Replies 6 Participants Last post by Sacramento Wildcat, Sep 29, 2020

Cwilban

Discussion Starter · Jul 15, 2020

Hey everyone, I have just over 200 miles and 27hrs on my KRX 1000 and have noticed that the suspension is a little squeaky and knocks when hitting pot holes, woops etc.. going at reasonable speeds. (Not a bad knocking noise, they still perform great) I have adjusted the suspension to 7 in the front and 2 in the rear. Makes for a comfortable ride here in Arkansas in this big rock and muddy terrain. I can also step out and pull down on the roll cage and the front suspension will stick for a few before bouncing back up. I take good care of them and never "send" it. Ha! Its not that big of a deal was just wondering if anyone was having the same thing happen and if jts normal. Or tell me what I'm doing wrong! Thanks!

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GeauxCrush

· #2 · Jul 15, 2020

Mine makes similar noises in those situations and it’s in the shop right now (for an alignment) but I also asked them to check on the suspension noise. So I will report back if there’s anything they find that might be an issue. My gut tells me that it is normal and functioning properly, however might as well use the 6 month warranty while it’s active.

Cwilban

Discussion Starter · #3 · Jul 15, 2020

GeauxCrush said:
Mine makes similar noises in those situations and it’s in the shop right now (for an alignment) but I also asked them to check on the suspension noise. So I will report back if there’s anything they find that might be an issue. My gut tells me that it is normal and functioning properly, however might as well use the 6 month warranty while it’s active.

I'd appreciate it! I've checked it over and doesn't look like anything is wearing. No scrapes or gouges. So it may be normal. Getting my first service in a few days as well. So might see if they can check them too!

Ajb9

· #4 · Jul 16, 2020

make sure your upper shock mounts are tight! see the post "shock mount"... also make sure your cross over springs are set to avoid spring lock of the uppers...

24/7

· #5 · Jul 16, 2020

Cwilban said:
Hey everyone, I have just over 200 miles and 27hrs on my KRX 1000 and have noticed that the suspension is a little squeaky and knocks when hitting pot holes, woops etc.. going at reasonable speeds. (Not a bad knocking noise, they still perform great) I have adjusted the suspension to 7 in the front and 2 in the rear. Makes for a comfortable ride here in Arkansas in this big rock and muddy terrain. I can also step out and pull down on the roll cage and the front suspension will stick for a few before bouncing back up. I take good care of them and never "send" it. Ha! Its not that big of a deal was just wondering if anyone was having the same thing happen and if jts normal. Or tell me what I'm doing wrong! Thanks!

bet the knock is the crossover rings. Mine does same thing hitting potholes. Some say the fix is adjust preload back out to stock specs after the initial sag from new. Mine squeaks every once in awhile. Mainly after few water/mudd crossings then dust builds up.

where you at in Arkansas? Im up in NWA

Cwilban

Discussion Starter · #6 · Jul 16, 2020

24/7 said:
bet the knock is the crossover rings. Mine does same thing hitting potholes. Some say the fix is adjust preload back out to stock specs after the initial sag from new. Mine squeaks every once in awhile. Mainly after few water/mudd crossings then dust builds up.

where you at in Arkansas? Im up in NWA

NWA as well friend. Born and raised!

Sacramento Wildcat

· #7 · Sep 19, 2020

has anyone tried this ( found on a You Tube video)

IMO, Michigan Mud Masters is correct about what's causing the shock noise. Raise your crossover rings (not the top preload nuts, but the next below that) up 1 inch and I about guarantee your noise will go away. After doing this on mine, it didn't leave much room to adjust the preload, but you could always move the crossover rings back down a little if you ran into clearance issues. My noise seemed to come more from the rear, but I lowered the crossover rings on all 4 shocks. This just lets you get a little more travel out of the top spring before it engages the main spring.

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Deranged Off-Road

Deranged Off-Road
5 months ago
Going to try that for sure. -Garrett

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LW McQuade 5 months ago (edited)
@Deranged Off-Road you can jack up the front of the machine to take pressure off the shocks, then I used an old flathead screwdriver that was kinda rounded over and a hammer to loosen the 2 rings/ nuts. Move them up, then use the hammer and screwdriver to tighten them against each other with a little tappy tap tap action and your good to go

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Jamey Arthurhultz

Jamey Arthurhultz 5 months ago
LW McQuade These adjustments your talking about are basic shock a spring tuning. Factory settings are very generic. Tuning your preloads for ride hight and ride quality is a must Great point 👍

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Sacramento Wildcat

· #8 · Sep 20, 2020

Anyone try these “SILENT” crossover rings ?

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Sacramento Wildcat

· #9 · Sep 20, 2020

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Sacramento Wildcat

· #10 · Sep 22, 2020

I razed my front crossover rings all the way up to get rid of the "knock knock". I ride here in Pennsylvania and rarely get above 30mph. Mostly trails and rock crawling. Also disconnected my front sway bar too. I'll try this setup next time out. I'll let you know how it works out.

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Ajb9

· #11 · Sep 22, 2020

I just installed the new shock springs along with the new split oringed crossover adjusters.. and I must say IMO there not worth the $200 or the trouble.. there near impossible to adjust on the vehicle. How long the o rings will last only time will tell.. but if I have to drop the shock and pull the spring just to adjust it.. the jewelry will come off and I simply go to a hydraulic shop and pick up some 2.5" thick orings to run up on the stock adjustable crossovers .

Sacramento Wildcat

· #12 · Sep 23, 2020

Ajb9 said:
I just installed the new shock springs along with the new split oringed crossover adjusters.. and I must say IMO there not worth the $200 or the trouble.. there near impossible to adjust on the vehicle. How long the o rings will last only time will tell.. but if I have to drop the shock and pull the spring just to adjust it.. the jewelry will come off and I simply go to a hydraulic shop and pick up some 2.5" thick orings to run up on the stock adjustable crossovers .

Most importantly, did it work? Do theses rings with orange o-rings really quiet the “knock noise”. ?

If so, you say we may as well just buy some O-rings and put them on our stock crossover rings. I think I’m seeing a grove in the Shock Therapy rings that the o-rings sit in?

Ajb9

· #13 · Sep 23, 2020

I haven't had it out on long run yet just installed the S.T. spring set... had my doubts the rubber o rings would do much but change the sound when hit but... I took the bait anyway and bought them.. hind sight I would have passed on the expensive rings.. If you have to go through the trouble of pulling your springs then change them out with a new set from ST.. I set the spring height they recommended left me with 12" so had to pull the all and drop the rings an 1" now at 14" and rides nice.

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JPWarrior

· #14 · Sep 25, 2020

Thanks for the tip AJB9. I haven't completed my order with ST, glad I saw your review.

Sacramento Wildcat

· #15 · Sep 29, 2020

Out riding this past weekend. I raised my front crossover rings up as far as they would go (maybe 2") up to the upper spring locks. Also disconnected the front sway bar for better articulation .........No more "knock knock" noise out of the front shocks. I think it handled very good. Although I ride the Pennsylvania coal region, rocky slow trails, we never get above 20 MPH. Guess I wouldn't want to ride across the desert at 60 MPH on this setup?.....But I think this spring setup makes it act more like one big spring instead of a dual rate spring. "But it's quiet" ...............when I get a chance I want to purchase some cheep rubber O-rings, take apart the front shock springs.
Slide some o-rings on and reset the crossover rings...............maybe see how long those little O-rings last?

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