King Coilover knock?

[mAtTyGlaz]

I have King coilvers, JBA UCA's, all sway bars completely removed. Both have 10,000 miles on them. When temperatures dip below zero I have a knock on the drivers side. It occurs over any uneven surface like a manhole, washboards, train tracks, etc.

I took a video this morning over some washboards. I'm not 100% sure that the knock is the Kings but I've torqued everything, greased UCA's, last month had the CV axle replaced. The truck only has 24,000 kms on it.

Is this a noise that could be caused by low nitrogen or possible King's factory oil weight vs the cold temperature ( - 5 F currently)?

The noise only occurs between 0km - 50kms/hr, if I'm going faster than that I cannot hear it. When the temperature is above zero it's not or barely there.

Any input appreciated.

It sounds much worse and prominent in person over the video

VIDEO: https://www.youtube.com/watch?v=BgFiLass-Zo&feature=youtu.be

 

[wfo9]

Keep this in mind... Std Kings are not designed for those temps at all. I'm not saying they won't work in those conditions, but it is a race shock with the goal being to operate at high temperatures and bleed off as much heat as possible. The oil viscosity valving.. is just not up to it. I would expect poor performance, but not necessarily noise... but that could definitely be part of it also.

I know there are special Cold weather King coil over setups for diesel trucks.... It will use some different shims and a thinner oil to help the shock working properly in those conditions. Maybe contact filthy motor sports and see what he has to say about your situation. I'm sure they have some low temp experience with Kings.

 

[KNorm92]

I have King coilvers, JBA UCA's, all sway bars completely removed. Both have 10,000 miles on them. When temperatures dip below zero I have a knock on the drivers side. It occurs over any uneven surface like a manhole, washboards, train tracks, etc.

I took a video this morning over some washboards. I'm not 100% sure that the knock is the Kings but I've torqued everything, greased UCA's, last month had the CV axle replaced. The truck only has 24,000 kms on it.

Is this a noise that could be caused by low nitrogen or possible King's factory oil weight vs the cold temperature ( - 5 F currently)?

The noise only occurs between 0km - 50kms/hr, if I'm going faster than that I cannot hear it. When the temperature is above zero it's not or barely there.

Any input appreciated.

It sounds much worse and prominent in person over the video

VIDEO: https://www.youtube.com/watch?v=BgFiLass-Zo&feature=youtu.be

Well this is good to know considering I live in MN and will be moving to the Northeast part of the country in the next year. I was considering getting Kings or Icons. I might only need the OME with heavy springs though.

Hmm...

 

[nb rob]

my lower rod end bearings didn't like the road salt and got really noisy quickly.
sadly, they're very large spherical bearings, and they were expensive to replace.

 

[Cde1218]

FWIW I have noticed the exact same thing as of late on my stock TRD PRO suspension w/ Toytec 2" lift.

I wasn't sure if this was due to the cold, something loose in the suspension or something broken. Currently, have an order for a set of King's so wasn't going to bother worrying about it as it'll be replaced soon.

Sounds like I may still have this issue even with the kings?!?

 

[mAtTyGlaz]

Keep this in mind... Std Kings are not designed for those temps at all. I'm not saying they won't work in those conditions, but it is a race shock with the goal being to operate at high temperatures and bleed off as much heat as possible. The oil viscosity valving.. is just not up to it. I would expect poor performance, but not necessarily noise... but that could definitely be part of it also.

I know there are special Cold weather King coil over setups for diesel trucks.... It will use some different shims and a thinner oil to help the shock working properly in those conditions. Maybe contact filthy motor sports and see what he has to say about your situation. I'm sure they have some low temp experience with Kings.

Well I contacted Filthy. Basically wont help because I didnt purchase there. Told me to go where I purchased them. Which is useless to me because it was 4wp here and they know nothing about Kings

 

[wfo9]

Well I contacted Filthy. Basically wont help because I didnt purchase there. Told me to go where I purchased them. Which is useless to me because it was 4wp here and they know nothing about Kings

Maybe they misunderstood. You don't need your shock fixed by them.. You just want to ask if noise is normal in a King in extreme cold conditions and if there are any tuning solutions they do.

 

[honda250xtitan]

Call King directly

 

[tjrlcr2k1]

I have Kings with res and I never have noticed any noise and I have been listening more since I read this thread. Last week it got down to about 8 degrees here, never as cold as -5 yet.

Sent from my SM-G935T using Tapatalk

 

[BarrRunner]

Did you ever figure out what the clunking was? Currently have the same setup and same noise coming from front.

 

[Grug556]

Keep this in mind... Std Kings are not designed for those temps at all. I'm not saying they won't work in those conditions, but it is a race shock with the goal being to operate at high temperatures and bleed off as much heat as possible. The oil viscosity valving.. is just not up to it. I would expect poor performance, but not necessarily noise... but that could definitely be part of it also.

I know there are special Cold weather King coil over setups for diesel trucks.... It will use some different shims and a thinner oil to help the shock working properly in those conditions. Maybe contact filthy motor sports and see what he has to say about your situation. I'm sure they have some low temp experience with Kings.

Ive driven my Kings in -30 plus weather. Winters are cold here. Never any issues with them. One thing ill add though is that the rears have a weak anti corrosive coating on the shock body which doesnt like road salt, even if you spray them with fluid film.

 

[bowhun2r]

It sounds much worse and prominent in person over the video

VIDEO: https://www.youtube.com/watch?v=BgFiLass-Zo&feature=youtu.be

I have this same sound on my driver side with my Dobinsons setup. I don't recall this on my 2018 with the exact same setup. I have Dobinsons UCAs being put on in 2 weeks and was going to ask the tech to re-torque everything while he was in there. Looks like that likely won't make a difference. The cold temps may have something to do with it (good catch). Cause I would have noticed this when I drove it home after the lift was installed (temps were 70's F. Only the past week where temps went below freezing have I noticed it.