First LR3 Issue - Suspension
#1
First LR3 Issue - Suspension
Hi All
I've come up against my first real issue with my '06 LR3 HSE. I've had it for 13 months and it's covered 95000 miles, 15000 in the last year.
I've been proactive staying on top of issues. The front suspension starting sagging overnight and appeared that the airbags were leaking. Not wanting to cause a bigger issue, my mechanic replaced both on the front. However, this now appears to have lead to a bigger issue. When the height rises, it will not lower on the rear, throwing up an error on the scanner that there is a signal plausibility fault, and that the vehicle will not vent. Mechanic is working through various things but this has really left him stumped.
Has anyone come up against this? Any suggestions as to what we should be looking for and checking? Height adjustable suspension is a big bonus for us with the family and constantly loading and unloading the troops and helps on some of the roads we use where the additional height is welcomed.
Any insight is greatly welcomed at this stage!
Thanks
I've come up against my first real issue with my '06 LR3 HSE. I've had it for 13 months and it's covered 95000 miles, 15000 in the last year.
I've been proactive staying on top of issues. The front suspension starting sagging overnight and appeared that the airbags were leaking. Not wanting to cause a bigger issue, my mechanic replaced both on the front. However, this now appears to have lead to a bigger issue. When the height rises, it will not lower on the rear, throwing up an error on the scanner that there is a signal plausibility fault, and that the vehicle will not vent. Mechanic is working through various things but this has really left him stumped.
Has anyone come up against this? Any suggestions as to what we should be looking for and checking? Height adjustable suspension is a big bonus for us with the family and constantly loading and unloading the troops and helps on some of the roads we use where the additional height is welcomed.
Any insight is greatly welcomed at this stage!
Thanks
#3
Hey, thanks for the response. I believe it has been. Mechanic is an ex LR master technician but next time we speak, I'll ask him the question! If I had the space and garage myself, I'd probably drag it back home, take it apart myself and destroy it further! Luckily for me and the LR I don't!
He's speaking to another indy speicialist so hopefully between them they can crack it.
He's speaking to another indy speicialist so hopefully between them they can crack it.
#6
OK, I will be the lone voice in the woods.
First; Good for you for changing both sides, these things hate it when one side is new and the other has 100,000 + miles of wear.
I have changed fronts on one, rears on another, and front and rears on a third, and have never needed to re-calibrate the ride height (or get an alignment).
Not saying don't do it, Not saying that it is a bad idea (it is a good idea). It is that I just never had to do it, that's all.
BUT, most likely the problem is: maybe the ride height sensor got moved; or a wire was pushed the wrong way making the Rover unhappy.
The exhaust valve issue may be related to a hot compressor. Double check relays and the temp of the compressor 2-3 minutes after start up (high temp can affect other parts besides the actual pump on the compressor)
Not lowering on the rear may be the rear distribution valve near the left rear wheel. Also what is the galley pressure when you try to lower the car back down?
What was the exact EAS code your mechanic saw?
It could help us help you.
Jeff
I have changed fronts on one, rears on another, and front and rears on a third, and have never needed to re-calibrate the ride height (or get an alignment).
Not saying don't do it, Not saying that it is a bad idea (it is a good idea). It is that I just never had to do it, that's all.
BUT, most likely the problem is: maybe the ride height sensor got moved; or a wire was pushed the wrong way making the Rover unhappy.
The exhaust valve issue may be related to a hot compressor. Double check relays and the temp of the compressor 2-3 minutes after start up (high temp can affect other parts besides the actual pump on the compressor)
Not lowering on the rear may be the rear distribution valve near the left rear wheel. Also what is the galley pressure when you try to lower the car back down?
What was the exact EAS code your mechanic saw?
It could help us help you.
Jeff
#7
Those are good points, Jeff.
On my '05, I changed one of the fronts and it had no issues with it at all.....but I did (about 15k miles later) wind up changing the other side, too.
If you ignore the fact that the shocks were changed at all, I'd be looking at the calibration for that behavior, and it could be due to the reasons you cite. Another thing, if your mechanic can manage to drive it, he may see a Cross Articulation Fault above 45'ish MPH. If that happens, we will KNOW that it's a calibration issue.
On my '05, I changed one of the fronts and it had no issues with it at all.....but I did (about 15k miles later) wind up changing the other side, too.
If you ignore the fact that the shocks were changed at all, I'd be looking at the calibration for that behavior, and it could be due to the reasons you cite. Another thing, if your mechanic can manage to drive it, he may see a Cross Articulation Fault above 45'ish MPH. If that happens, we will KNOW that it's a calibration issue.
#10
Amazing insight. Really appreciate you sharing your experiences. I'm in it for the long run with this truck. Absolutely adore it so it's not going to get the better of me and looking at upgrades and replacements in stages.
I'll speak with the mechanic again and feedback some of this. He had mentioned it was blowing a fuse, so I'll get more on that too. He's also looking at the EAS module as a possible cause.
@houm_wa It was the front shocks that were replaced, so if the sensor bracket was bent, surely it would have to be a rear one to affect the rear not lowering? Front is dropping fine, so it currently looks like it's in drag mode with the rear raised and the front dropped!
I'll speak with the mechanic again and feedback some of this. He had mentioned it was blowing a fuse, so I'll get more on that too. He's also looking at the EAS module as a possible cause.
@houm_wa It was the front shocks that were replaced, so if the sensor bracket was bent, surely it would have to be a rear one to affect the rear not lowering? Front is dropping fine, so it currently looks like it's in drag mode with the rear raised and the front dropped!