Where is the Bump Stop?
Instructor
Joined: Apr 2006
Posts: 1,213
Likes: 67
From: EARTH
Gents....There is three reason a GX for bottoming
1. Overloaded.
2. Pneumatic Cylinder Weak ( Solenoid Assy )
3 Shock Absorber ( worn out)
The Sensors when it does not read the values of the height, it cannot interpret the signals to the ECM ( here the Height control is not faulty)becoz the Accumalator solenoid Valve has malfunctioned & it cannot signal to the ECM. Now coming to the bottoming, there are two ways to look. The Compressor is flat there by not building pressure to raise the required height. . The Suspension fluids pressure is low and thereby no gas is present. How to check .Bleed the air , thereby you get the suspension adjusted manually to the range required. Because if the N2 gas if it is in the fluid , it will bellow thereby telling you that there is malfunction within the Stab control assy accumulator housing. Here the N2 gas enters the suspension fluid which causes the fluid pressure to decrease, and that is reason you get the bottoming out.
hope you have understood the long procedure involved.
1. Overloaded.
2. Pneumatic Cylinder Weak ( Solenoid Assy )
3 Shock Absorber ( worn out)
The Sensors when it does not read the values of the height, it cannot interpret the signals to the ECM ( here the Height control is not faulty)becoz the Accumalator solenoid Valve has malfunctioned & it cannot signal to the ECM. Now coming to the bottoming, there are two ways to look. The Compressor is flat there by not building pressure to raise the required height. . The Suspension fluids pressure is low and thereby no gas is present. How to check .Bleed the air , thereby you get the suspension adjusted manually to the range required. Because if the N2 gas if it is in the fluid , it will bellow thereby telling you that there is malfunction within the Stab control assy accumulator housing. Here the N2 gas enters the suspension fluid which causes the fluid pressure to decrease, and that is reason you get the bottoming out.
hope you have understood the long procedure involved.
Thread Starter
Racer
Joined: Oct 2008
Posts: 1,314
Likes: 6
From: VA
Gents....There is three reason a GX for bottoming
1. Overloaded.
2. Pneumatic Cylinder Weak ( Solenoid Assy )
3 Shock Absorber ( worn out)
The Sensors when it does not read the values of the height, it cannot interpret the signals to the ECM ( here the Height control is not faulty)becoz the Accumalator solenoid Valve has malfunctioned & it cannot signal to the ECM. Now coming to the bottoming, there are two ways to look. The Compressor is flat there by not building pressure to raise the required height. . The Suspension fluids pressure is low and thereby no gas is present. How to check .Bleed the air , thereby you get the suspension adjusted manually to the range required. Because if the N2 gas if it is in the fluid , it will bellow thereby telling you that there is malfunction within the Stab control assy accumulator housing. Here the N2 gas enters the suspension fluid which causes the fluid pressure to decrease, and that is reason you get the bottoming out.
hope you have understood the long procedure involved.
1. Overloaded.
2. Pneumatic Cylinder Weak ( Solenoid Assy )
3 Shock Absorber ( worn out)
The Sensors when it does not read the values of the height, it cannot interpret the signals to the ECM ( here the Height control is not faulty)becoz the Accumalator solenoid Valve has malfunctioned & it cannot signal to the ECM. Now coming to the bottoming, there are two ways to look. The Compressor is flat there by not building pressure to raise the required height. . The Suspension fluids pressure is low and thereby no gas is present. How to check .Bleed the air , thereby you get the suspension adjusted manually to the range required. Because if the N2 gas if it is in the fluid , it will bellow thereby telling you that there is malfunction within the Stab control assy accumulator housing. Here the N2 gas enters the suspension fluid which causes the fluid pressure to decrease, and that is reason you get the bottoming out.
hope you have understood the long procedure involved.
I think I can eliminate items #1 & 3. As always, thanks for sharing your wealth of knowledge,
Instructor
Joined: Nov 2009
Posts: 1,049
Likes: 105
From: BOSTON,MA
ROSCOGX470 There is another thread, with a posting in the start of December. On page 3, there is a picture of the ride height sensors and how to adjust with basic tools. Hopefully, I copied this link correctly:
https://www.clublexus.com/forums/gx-...version-2.html
https://www.clublexus.com/forums/gx-...version-2.html
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