GX 470 does not lower itself, is it height control sensor?
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Driver School Candidate
Joined: Oct 2013
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From: TN
GX 470 does not lower itself, is it height control sensor?
Hi guys,
My GX after I changed all 4 shocks and 2 air bags does not lower itself when park anymore. I remember normally it will back to normal standard height with some hiss noise when I turn off the engine. Right now if I drive alone it still smooth as it before but when I carry something heavy or there are passengers inside it becomes stiff and not comfort as all. I think the height control sensors are failed so it cannot automatically level itself anymore, do you guys think so? Or are there any other parts of the suspension fail? Thanks.
My GX after I changed all 4 shocks and 2 air bags does not lower itself when park anymore. I remember normally it will back to normal standard height with some hiss noise when I turn off the engine. Right now if I drive alone it still smooth as it before but when I carry something heavy or there are passengers inside it becomes stiff and not comfort as all. I think the height control sensors are failed so it cannot automatically level itself anymore, do you guys think so? Or are there any other parts of the suspension fail? Thanks.
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Joined: Apr 2014
Posts: 53
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From: Virginia
I don't have an answer to your question, but you can very easily disassemble your height sensors to see if they are corroded. They are too expensive to blindly swap out and WAY overpriced for what they are. I will try to find the re-build thread, but I think it was on a Prius forum as the Prius uses them to align the HID headlights.
Once you remove the cover, you will see three gold colored springs. When the sensors fail, it is typically because one of those springs has corroded to death. There is also a resistance check, but I don't know those values off hand.
Once you remove the cover, you will see three gold colored springs. When the sensors fail, it is typically because one of those springs has corroded to death. There is also a resistance check, but I don't know those values off hand.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
Likes: 0
From: TN
I don't have an answer to your question, but you can very easily disassemble your height sensors to see if they are corroded. They are too expensive to blindly swap out and WAY overpriced for what they are. I will try to find the re-build thread, but I think it was on a Prius forum as the Prius uses them to align the HID headlights.
Once you remove the cover, you will see three gold colored springs. When the sensors fail, it is typically because one of those springs has corroded to death. There is also a resistance check, but I don't know those values off hand.
Once you remove the cover, you will see three gold colored springs. When the sensors fail, it is typically because one of those springs has corroded to death. There is also a resistance check, but I don't know those values off hand.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
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From: TN
I mean the auto leveling feature in the GX. Normally it will go up or go down when you drive but it should be go back to standard height of the N position when you stop or park. For example, my truck standard N height from the center of wheel hub to the lip is 54cm but when I drove around and back to home it became 55cm and did not back to 54cm even I restart the engine it still 55cm. The only way to make it back to standard height is to manually rise it to H and again lower it to N. So is it has bad sensors or its height control reservoir becomes bad? Thanks.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
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From: TN
auto-kneeling when you leave vehicle after parking it? i believe it does this to make rear gate lower to load in stuff. mine used to do this all the time, but after a tire blow-out and a whole bunch of fixing including the air pump for air ride, the auto-kneeling on my 2006 happens only on occasion. oddly, my local dealer is not even sure of the feature, thus cant tell me if its normal or not.
do you have any docs that describes this feature?
do you have any docs that describes this feature?
Last edited by kidelnino; Aug 4, 2014 at 04:02 AM.
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Rookie
Joined: Apr 2014
Posts: 53
Likes: 2
From: Virginia
Mine does the auto kneel thing, but not all the time. I have no idea how or why. It doesn't go down to the lowest position though. I just figured it was correcting back to N after load adjusting during the ride. That said, it does it sometimes even when I don't have anything in the back or rear passengers.
I seem to recall there was a check valve somewhere that I think is computer controlled. That may be having issues. I may be way off though. I think mann777 posted about it.
I seem to recall there was a check valve somewhere that I think is computer controlled. That may be having issues. I may be way off though. I think mann777 posted about it.
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Lead Lap
Joined: Feb 2014
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From: NC
So it's just the normal height adjustment working once the weight of you and your passengers are off the vehicle then. Ok, no worries.
Some cars will raise/lower themselves to make it easier to get in & out when you put them in park. And lower themselves at highway speeds for aerodynamic purposes. The GX does not have this feature.
Chip H.
Some cars will raise/lower themselves to make it easier to get in & out when you put them in park. And lower themselves at highway speeds for aerodynamic purposes. The GX does not have this feature.
Chip H.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
Likes: 0
From: TN
So it's just the normal height adjustment working once the weight of you and your passengers are off the vehicle then. Ok, no worries.
Some cars will raise/lower themselves to make it easier to get in & out when you put them in park. And lower themselves at highway speeds for aerodynamic purposes. The GX does not have this feature.
Chip H.
Some cars will raise/lower themselves to make it easier to get in & out when you put them in park. And lower themselves at highway speeds for aerodynamic purposes. The GX does not have this feature.
Chip H.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
Likes: 0
From: TN
. I read somewhere that it should back to standard height when we park so the air bleeding sound we used to hear is a part of the operation.
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 14
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From: TN
I just read this post https://www.clublexus.com/forums/gx-...or-ride-8.html today that many people seem to have poor ride but also cannot find any solutions.
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