Hi guys!
I have a 2001 VX100 1HD-FT diesel with 300,000 miles on it.
I've owned it for two years and love the comforts over the HJ61 it replaced.
But the AHC is acting up!
I don't want to go conventional, I want to keep the AHC.
AFAIK everything except height sensors are original, and I know the globes must be shot, but before replacing them, I'd like your input.
The truck has been getting higher and higher and harder and harder.
And the height control button does absolutely nothing besides making the green light go up or down a few seconds, no change in ride height. It used to work, but intermittently.
I have Techstream and hooked it up and ran a fault diagnostic, no codes...
So I went to AHC live got this screen shot:
Height FR: 73.8mm (~2 9/10")
Height FL: -72.8mm (~-2 7/8")
Height RR: -7,7mm (~-3/10")
Notice the difference in value on the front axle, that's 146.6mm or 5 3/4"! Shoudn't it be about the same?
No pressure readings....
So I used the active test and levelling solenoids to lower the car:
Height FR: -66.6mm (~-2 5/8")
Height FL: -102.8mm (~-4")
Height RR: -54.8mm (~-2 1/8")
Difference FR: 140.4mm (~5 1/2")
Difference FL: 30mm (~1 3/16")
Difference RR: 47,1mm (~1 7/8")
Notice the difference, everything carried out on a perfectly level shop floor, and I don't believe there was a difference of 4" between front left and right...
Notice again no pressure readings..
All realyas etc. checked in active test and I heard them click.
Then I turned the ignition off, and on again, and the truck came up a bit:
Height FR: -1.6mm (~0")
Height FL: -93.6mm (~-3 5/8")
Height RR: -45.2mm (~-1 3/4")
So something seems odd, I redid the tests and checked height from floor to the fender lip:
(Sorry for not doing in ", but 50mm ~2")
FR seems to be almost the same between techstream and a fender lip measurement, the rear is off by ~10%, but RL is WAY off and doesn't change with the car, so that must be bad...
I got pressure readings this time: front: 8.0 Mpa-g and rear is 7.3Mpa-g, so bad too!
How would you guys approach this?
I have a 2001 VX100 1HD-FT diesel with 300,000 miles on it.
I've owned it for two years and love the comforts over the HJ61 it replaced.
But the AHC is acting up!
I don't want to go conventional, I want to keep the AHC.
AFAIK everything except height sensors are original, and I know the globes must be shot, but before replacing them, I'd like your input.
The truck has been getting higher and higher and harder and harder.
And the height control button does absolutely nothing besides making the green light go up or down a few seconds, no change in ride height. It used to work, but intermittently.
I have Techstream and hooked it up and ran a fault diagnostic, no codes...
So I went to AHC live got this screen shot:
Height FR: 73.8mm (~2 9/10")
Height FL: -72.8mm (~-2 7/8")
Height RR: -7,7mm (~-3/10")
Notice the difference in value on the front axle, that's 146.6mm or 5 3/4"! Shoudn't it be about the same?
No pressure readings....
So I used the active test and levelling solenoids to lower the car:
Height FR: -66.6mm (~-2 5/8")
Height FL: -102.8mm (~-4")
Height RR: -54.8mm (~-2 1/8")
Difference FR: 140.4mm (~5 1/2")
Difference FL: 30mm (~1 3/16")
Difference RR: 47,1mm (~1 7/8")
Notice the difference, everything carried out on a perfectly level shop floor, and I don't believe there was a difference of 4" between front left and right...
Notice again no pressure readings..
All realyas etc. checked in active test and I heard them click.
Then I turned the ignition off, and on again, and the truck came up a bit:
Height FR: -1.6mm (~0")
Height FL: -93.6mm (~-3 5/8")
Height RR: -45.2mm (~-1 3/4")
So something seems odd, I redid the tests and checked height from floor to the fender lip:
(Sorry for not doing in ", but 50mm ~2")
FR seems to be almost the same between techstream and a fender lip measurement, the rear is off by ~10%, but RL is WAY off and doesn't change with the car, so that must be bad...
I got pressure readings this time: front: 8.0 Mpa-g and rear is 7.3Mpa-g, so bad too!
How would you guys approach this?