Question about 2005 Lexus GX470

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Lexus gx470 ahc fuses

What is the fuse # or label for the AHC fuse inside driver side?

Posted by Anonymous on

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Anonymous

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SOURCE: 2005 lexus lx470 ahc system

Caution on what to put in the LX470 automatic height adjustment system. Dealer said unless correct fluid is put in the system the seals may fail. Specifically warned against break fluid. Cost to repair is over $3,000. I bought a can of the fluid at the Lexus dealer for about $26. The can was approx. 1/2 gallon.



Posted on Jan 24, 2009

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mike looccm

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SOURCE: AHC System is Failing. Leak

here is a good write up on the AHC system and its funcitons, more than likely the hydro-pneumatic accumulator which i believe is mounted on the frame rail under the passenger rear door has failed and more than likely will need to be replaced. I don't believe they can be rebuilt.




http://www.activesuspensionsystems.com/lelx470susy.html

Posted on Aug 19, 2010

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This could be caused by several things: (1) Sensor is bad & ya they can and do go bad. (2) Your shocks may need to be replaced. (3)you would want to diagnose if you have a problem with your AHC.
Unfortunately, the only test I know of is to check if your globes are bad via the "Height Test".
I have no way of knowing whether the other components are bad or if my ride is standard / okay. I just have a gut feeling that it can be improved. At worse, you'll be extending the life of your AHC by reducing wear on it.
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Caution on what to put in the LX470 automatic height adjustment system. Dealer said unless correct fluid is put in the system the seals may fail. Specifically warned against break fluid. Cost to repair is over $3,000. I bought a can of the fluid at the Lexus dealer for about $26. The can was approx. 1/2 gallon.



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