SpacePig
New Member
Hi everyone
Before I go full mental on that and drive to my mechanic I would like to check a few things with you first.
My Car is an early P38 (95-96) V8 HSE, the four airbags has been changed alongside my noisy compressor 2 years ago. Last summer I also changed the small metallic ring on top of the Air Dryer and on top for the Front Right side Suspension due to leak. Since then I spay soapy water once every 3 month on these parts including the ones on the rear suspension and the outside of the EAS Pack to check any potential leak (Suspension itself are difficult for me to reach since I share a parking place and I cannot crawl below the car)
No my problem is after a few day or even a night the car is either on access mode or very low = I must have a leak.
However where I park the car the ground is not even and my rangie is always perfectly leveled when I park her(him?). Still due to the configuration of the floor the front right suspension is always higher then the left one.
Now I know that every 8hrs the car will drop of 0.25CM. So yesterday I did a quick check.
Note: I measure the height from the wheel arch to the first visible and easy to measure mark that is close to the center of the wheel (less than 2cm like here Screen Shot 2013-06-10 at 10.34.45 AM.png)
Sunday 2pm I had
FL 42.9cm
FR 45cm (uneven ground)
RL 43.9cm
RR 43.9cm
Sunday 8pm (6h) the same
Monday 7h30am
FL 39.9cm
FR 41.5cm
RL 40.8cm
RR 40.1cm
Which mean that I lost MORE than the 0.5cm I should normally have after 16hrs
FL 3.7cm
FR 3.5cm
RL 3.1cm
RR 3.8cm
All point to a leak however I found that Air Suspension Faults, Diagnosis and Repair
Lowering to Bump Stops when Parked:
The ECU is not very intelligent when it comes to figuring out what is happening when the vehicle is parked. If the ground is anything other than perfectly flat, it will try to lower all the wheels to the height of the lowest one, rapidly resulting in the vehicle ending up on the bump stops. This rather unintelligent strategy is particularly annoying off pavement, since the ground there is nearly always uneven. So don't park where there is a big rock or other obstacle under the body of vehicle! If you want to stop in such a spot temporarily, either leave the engine running, or inhibit the system's unintelligent operation by leaving a door or the tailgate open or removing fuse F17 on the BeCM fuse box. See precautions above about being careful where you park.
Still, I believe that the Height Sensor are original on my car, same of the Air Line, Same for the Air Dryer and valve block.
Is the compressor hot? Yes, but when I park the car the compressor stop (after 5 minutes) for a long while. I did not check this week end but last month I had the car running for more than 20mm and the compressor did not fire while keeping car leveled.
As you know my technical skills are limited and I would much appreciate if you could point me to stuff that I shall discuss with my garage and make sure that I will be in "control" of the expenses thanks to your advises.
Thanks!
Before I go full mental on that and drive to my mechanic I would like to check a few things with you first.
My Car is an early P38 (95-96) V8 HSE, the four airbags has been changed alongside my noisy compressor 2 years ago. Last summer I also changed the small metallic ring on top of the Air Dryer and on top for the Front Right side Suspension due to leak. Since then I spay soapy water once every 3 month on these parts including the ones on the rear suspension and the outside of the EAS Pack to check any potential leak (Suspension itself are difficult for me to reach since I share a parking place and I cannot crawl below the car)
No my problem is after a few day or even a night the car is either on access mode or very low = I must have a leak.
However where I park the car the ground is not even and my rangie is always perfectly leveled when I park her(him?). Still due to the configuration of the floor the front right suspension is always higher then the left one.
Now I know that every 8hrs the car will drop of 0.25CM. So yesterday I did a quick check.
Note: I measure the height from the wheel arch to the first visible and easy to measure mark that is close to the center of the wheel (less than 2cm like here Screen Shot 2013-06-10 at 10.34.45 AM.png)
Sunday 2pm I had
FL 42.9cm
FR 45cm (uneven ground)
RL 43.9cm
RR 43.9cm
Sunday 8pm (6h) the same
Monday 7h30am
FL 39.9cm
FR 41.5cm
RL 40.8cm
RR 40.1cm
Which mean that I lost MORE than the 0.5cm I should normally have after 16hrs
FL 3.7cm
FR 3.5cm
RL 3.1cm
RR 3.8cm
All point to a leak however I found that Air Suspension Faults, Diagnosis and Repair
Lowering to Bump Stops when Parked:
The ECU is not very intelligent when it comes to figuring out what is happening when the vehicle is parked. If the ground is anything other than perfectly flat, it will try to lower all the wheels to the height of the lowest one, rapidly resulting in the vehicle ending up on the bump stops. This rather unintelligent strategy is particularly annoying off pavement, since the ground there is nearly always uneven. So don't park where there is a big rock or other obstacle under the body of vehicle! If you want to stop in such a spot temporarily, either leave the engine running, or inhibit the system's unintelligent operation by leaving a door or the tailgate open or removing fuse F17 on the BeCM fuse box. See precautions above about being careful where you park.
Still, I believe that the Height Sensor are original on my car, same of the Air Line, Same for the Air Dryer and valve block.
Is the compressor hot? Yes, but when I park the car the compressor stop (after 5 minutes) for a long while. I did not check this week end but last month I had the car running for more than 20mm and the compressor did not fire while keeping car leveled.
As you know my technical skills are limited and I would much appreciate if you could point me to stuff that I shall discuss with my garage and make sure that I will be in "control" of the expenses thanks to your advises.
Thanks!