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I would jack it up and verify the part numbers on each strut. Then I would take those height measurements I went over in the last part of the video I posted. Would give us a better idea to help diagnose.
I got them from impex, they are for celsior and 01-04 ls430's
So these are slightly shorter than 05-06
But its slightly shorter so when they adjusted the arms it corrects this. Or is that my problem? Its should just pump it up until the ride height sensors see values ecu likes.
Whats weird is I quad check parts from dealers, diagrams, other sellers, another dealer. But when the shop put in the rear they said I had the part numbers mixed up (I labeled one left rear and one right rear, fronts dont matter left or right is the same). I make mistakes but Im wondering if they put them in wrong (rear right strut on left side).
I can dig around for part numbers, but they are only two variations and I have the early ones.
Ok that's the problem then. You need the newer struts, or you need to come up with a ~1" spacer that fits on top of the strut mounts if you are running older struts.. You can't use the arms or height sensors to adjust out 1-2" of physical strut length difference. The ECU doesn't know what length struts you're using and it also doesn't know the distance from the ground to the frame. All it has is height sensors to compare to one another.
Also, the rears are side specific, the air line fitting is positioned different on each side.
If you have an 01-03 you must use these part numbers
Front air strut build date 8/2000 thru 05/2002 (both left and right side) 48010-50110
Front air strut build date 6/2002 thru 06/2003 (both left and right side) 48010-50120 (ok to use on all 01-03)
Rear right air strut build date 8/2000 thru 05/2002 48080-50110 (discontinued and cannot be purchased new)
Rear right air strut build date 6/2002 thru 06/2003 48080-50120 (use this on 01-02 models)
Rear left air strut build date 8/2000 thru 05/2002 48090-50110
Rear left air strut build date 6/2002 thru 06/2003 48090-50120 (ok to use on all 01-03 models)
If you have an 04-06 you must use these part numbers
Front right and left 48010-50130
rear right 48080-50130
rear left 48090-50130
To further illustrate the problem, here are the front struts shorter are the 01-03, longer are the 04-06. I'm not sure what the difference in height looks like comparing the rears.
Ok that's the problem then. You need the newer struts, or you need to come up with a ~1" spacer that fits on top of the strut mounts if you are running older struts.. You can't use the arms or height sensors to adjust out 1-2" of physical strut length difference. The ECU doesn't know what length struts you're using and it also doesn't know the distance from the ground to the frame. All it has is height sensors to compare to one another.
Also, the rears are side specific, the air line fitting is positioned different on each side.
If you have an 01-03 you must use these part numbers
Front air strut build date 8/2000 thru 05/2002 (both left and right side) 48010-50110
Front air strut build date 6/2002 thru 06/2003 (both left and right side) 48010-50120 (ok to use on all 01-03)
Rear right air strut build date 8/2000 thru 05/2002 48080-50110 (discontinued and cannot be purchased new)
Rear right air strut build date 6/2002 thru 06/2003 48080-50120 (use this on 01-02 models)
Rear left air strut build date 8/2000 thru 05/2002 48090-50110
Rear left air strut build date 6/2002 thru 06/2003 48090-50120 (ok to use on all 01-03 models)
If you have an 04-06 you must use these part numbers
Front right and left 48010-50130
rear right 48080-50130
rear left 48090-50130
Oh dear god. Scared the crap out of me yup those are the right numbers I have for my rears, 48080-50130 48090-50130. I just assumed these seemed so new they were for the Celsior and that look the shorter ones when I said that in the start.
I triple checked with dealer and diagram then marked left and right on them for shop but when they put them in they said I had the shocks mixed left to right wrong. But as you say the air line can only sit one way, weird I guess I did that, I didnt see this post come threw my email I didnt know it was here. But thats super helpful info and hopefully will save someone in the future when they are reading this.
So now they say the pump is week and Im having them, yes wait for it, put in one from advanced auto and dryer. 2 year warranty and if it dies it wont kill any of the air suspension if I shut it down. They say with a new compressor it should have the right amount of pressure to calibrate, also if it fails then I have to do it over again. They said the calibration of the arms is tedious, I'v seen the videos, yikes. At least its seeing values and stopping. Man I almost had a heart attack when I read this.
I think they were seeing values rather scattered and the RR an 1" out. They said they want to make sure enough air is getting into the system and back, not sure if I agree, but the compressor is suspect (thanks to what people said above).
Its just weird they cant get the right rear to come up to the others, no leaks. I never like the throw parts at it approach but with so much done I should just get the new pump. One from Impex is almost the same as a strut. Thanks for the write up of numbers and build dates. Whats odd is the used ones I got ( dont buy used!!) were the shorter ones from a Celsior for the front and they did get them to work, they were shot thats why I got these. It just seems with the changing of these something happened.
I just assumed the car could adjust for difference (not that I have one since I have the right part numbers), like all those guys slamming them and what not.
Last edited by user 54973249; Mar 5, 2024 at 10:20 PM.
Reason: Bad with numbers
The part numbers I ordered from Impex, they are valid, I checked on the struts themselves when they got there. Regardless they are the right part.
I dont drive that much and am wondering whats the worse that can happen. Or I could leave the weak compressor in and just keep it in high. If it goes Id have to pay for recalibration so Im wondering if I should just keep the compressor in.
If the compressor was the problem then none of the other shocks would be at the correct height. The compressor either works or it doesn't. There is no in between.
It's not a pain at all to adjust the arms. You loosen one nut then slide the arm higher or lower on the control arm. That's it.
If the compressor was the problem then none of the other shocks would be at the correct height. The compressor either works or it doesn't. There is no in between.
It's not a pain at all to adjust the arms. You loosen one nut then slide the arm higher or lower on the control arm. That's it.
First you made me faint then you made me hug everyone around me. Your information is invaluable thanks so much. Ordered bushing for existing compressor and will have them calibrate and save for OEM from Impex.
Really curious to know the height from your control arm mounting points on the chassis to the ground. Should be about 8"
Then curious to know what your techstream height sensor values read. They should all read around 0.00"
Hum, dont have it will have to ask them for values, Ill get back. 8" all around four, from the point at which the lower control arms mount to the chassis, thank you.
This is 8" at ride height normal? Also as buddy said to have them test amp draw and psi, 32 amps and 168psi I believe But if its a yes or no thing maybe have them not test it,
Last edited by user 54973249; Mar 6, 2024 at 11:19 AM.
Wow I didnt think it changed for the older 16" Ill have to tell the shop. Would that mess them up if they adjusted for factory stock 18inch rims that came with car?
Thanks for the info. You wouldnt happen to have a link to where you printed it out?
Any reputable shop has access to that in their repair software. Looks like 04-06 is a little different. It doesn't give ground to chassis measurements either.
Cool thanks. I hesitate to give the garage that info seems like tie rod ends. Sure they know that. They did say the 16 inch wheels equal the same height as the 18 inch rims as for the increased rubber on the rim for the 16's
Does this change the distance for the lower control arm mounting to the frame? 8"?
Honestly Im not sure if the shop knows what they are doing. They said it was a time consuming process but only the right rear needs adjustment. My guess is they are guessing that all 4 ride height sensors need to be calibrated to get the right rear to site right and not be off an inch. Also what is the factory height for that side as it comes lower on that side from factory.