Lexus GX 2004-09 :: Rear Air Suspension Leaks Down
Aug 10, 2013
I have a 2004 GX470. Been a great car. Has 310k miles and very little in repair. My current problem is the rear air suspension leaks down. The problem is not 100% of the time but probably 80% when the car is left parked and off, over a few hours the air is released and the rear is sitting on the bumpers. My theory is it is not the air bags as if one leaked it would be doing this every time the car sits.
My hunch is it is either the component that releases the air is not sealing up every time after it releases the prescribed air when the car is parked. ( That sound it makes when you get out and it lowers the car a little each time) ... Or the sensor tells that component to let more air out and it does not tell it to stop.
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So my rear air suspension just went out, I'm assuming that my air bags have a leak or a hole because the air compressor shut its self off. I'm thinking of just getting rid of the air system completely and just putting on some good shocks and leveling it out.
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I have a 2007 GX 470 that I use to tow a boat ~3500 lbs. Typically, when I attach the boat to the trailer hitch, the rear end of my GX 470 will lower ~1.5", then the air suspension will activate and bring the rear end back up to a nearly level position. Lately, the air suspension has quit working.
I've taken it to my dealership, they've checked it out and told me that the system is working fine. When I brought it home and attached the boat, the air suspension is still not working. I've got an appointment on Monday to haul the boat up to the Lexus dealer and show them the problem. I can use the air suspension switch to raise the the rear end and the pump seems to work just fine.
I'm thinking that, although the "system" is working fine, somewhere there has to be a sensor or switch that tells the system to work - that isn't working.
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My rear air suspension keeps dropping. Sometimes my suspension goes down all the way when parked, but not all the time. When I start the car it goes back up. It's a 2003 GX470.
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Does this sound normal that sometimes the rear suspension with move/adjust itself after I turn off the car and then get out? One side appears to be slightly lower than the other as well, but both of the height adjusters underneath appear to be at the same level.
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I was driving along and all of a sudden it felt like the rear suspension was just not there it actually felt like it was bouncing on the frame. then it went away. I recently in the last year had the rear shocks changed with OEM shocks.....
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OK so I know that my rear suspension no longer operates the way it should...with 230K miles and owned since 03....time has taken its toll. So I was wondering if any parts list to repair the rear air suspension so that I can take it directly to my toyota dealer to install. I can tell that the air suspension is trashed simply because I would normally hear the car lower when I parked in the garage etc...now it doesn't do anything.
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I took my 2003 GX470 for service (not a Lexus dealer), which included rear brake pads. After picking up my car, I realized there was a serious malfunction with the rear air suspension, and my "car height" was no longer working. I took it back to the mechanic immediately - he stated that the rear air bag deflated when they put it up on the lift (which is normal). However, they couldn't get it to inflate again, so had to order a new one. I'm wondering if this is the mechanic's problem or mine (the car has 101,000 miles on it).
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I own a 2004 GX470 and am recently having issues with my rear airbag. The height control is inoperative and the bags will not fill completely and lift the rear.
I went under the car and found the bumpstops are a few centimeters off the rear axle.
What could cause the height control to not function? Could it be the height sensor, airbag, etc? I could hear the air compressor turn on so do not think that is an issue.
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Noticed this rear suspension noise on their RX330's. Every time I go up a slanted driveway (driving into a driveway at an angle, not head on), there is a clunking noise coming from the right rear of the car. The sounds it makes is almost as if I the spare tire is lose hitting on the right side of the car. This only happens if I am driving into a driveway coming from the right side, the sounds does not happen if I am entering my driveway from the left side.
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I've had the stiff ride issue with my 2005 gx470. Took it to three lexus dealers and finally the vehicle is fixed. Hats off to Lexus of Maplewood, St Paul, MN. Their shop foreman persisted and found after several days troubleshooting; a speed sensor was the culprit. My ride is much smoother over speed bumps without the need to cycle through the height adjustment.
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How to fix rear air suspension from dropping down to bump stops ...if I reset it every night it is fine but if not it will be down on bump stops by morning.
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I just had the rear air compressor suspension replaced, but when it activates it sounds pretty noisy. It doesn't sound normal. What the heck is going on?
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I am having a problem with my rear suspension. The indicator lights on the dash (for the rear suspension control) are working correctly as are the controls on the center console, however the rear of my vehicle is stuck in a high position.
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My left rear suspension will leak down to bump stops unless I turn off auto suspension leveler. I can set suspension at high level turn off and it will stay that way i had set that way for 2 weeks and no leak but if I turn on leveler it may stay or it may leak down usually just left side somebody had said that my air bags were leaking so I tested it out all last month and find it hard to believe the bags are leaking if it will stay inflated a week or 2.
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So I found an 03 gx one owner and only 56k Miles on it. Nice truck. I noticed right away that the rear suspension feels hard and bouncy. When I adjust the height it does work but seems to take a bit. In the Low setting feels like it is on the bump stops. Not sure where to start, sounds like the level sensors can be an issue, so I will have a look at them. Feels like it is just going to the top height to me thus making the ride really stiff. I climbed onto the rear bumper and tried to bounce the truck and it is like a rock. Like the bags are over inflated.
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I just purchased my daughter a used 2006 Prius and we found water in the rear right passenger floor board this morning. We have only had the car 3 days. There are on leaks that I could find inside the car. I looked in the tire well and water was there and also near the 12Volt battery also. The brownish/yellow sealant in the tire well that goes around the bottom is also in my 2010 Prius but I noticed that my daughters 2006 Prius the sealant or what I believe to be bodyflex is cracked. I am going to have a body person look and see if he agrees with me that this bodyflex is cracked.
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I am a second owner to a 2008 GX Blizzard Pearl that I love. Have had the truck 4 years.
Truck has 83k miles. Is it time to change the timing belt, water pump, etc? Has never been done.
Aircon issues. Freon leaks out. Leak seems to be behind firewall, but mechanics have not been able to locate the leak.
Hate the wheels on the truck now that the paint is blistering.
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I have a 1997 Lincoln towncar with the air suspension. After parked for overnight I found the car sagging in the rear so I thought a air bag went out so I thought I would take it in to get fixed but the next few nights nothing happen the car stayed level then the next night it went down then the next few nights it stays level.
I took it to the dealer and they told me they see nothing wrong and kept it over night and it did not go down. It is like a roll of the dice if it stays level or goes down. I sprayed the air bags and the lines to them with soap water to see if I could find any leaks but I did not see anything.
The compressor is buried so unless I know that is the problem I am not going to rip everything apart to not find a leak or is that where I should be starting. If the car is running everything stays level and no light is on. I do not want coils in the car I like the air suspension.
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After a long drive, I got up and out of the car and heard a creak/clang type of noise from the rear suspension. Sat back down in the front and rear seat and it makes the noise. Pushed on the rear of the car and the noise is not there. What gives. Yes I seem to discover a lot about my car in the last 5 months of leasership.
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For several months there has been a rumble from the rear like suspension is faulty but inspection of strut and other parts showed no obvious issues. 60,000 miles one owner.
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