20" rim D4 on Border Track, SA

The lower cover might be filled with sand or dirt so require a clean-out.

Which wheel did you change? Was it passenger side rear? Perhaps you accidentally placed the jack on the compressor cover and damaged it.

The compressor is close to the chassis rail and people have damaged it during jacking.

Scott

Breaker Breaker!

Graeme are you the supplier of Llams?
I noticed you commented in an earlier reply the Llams that you produce? Cheers.

Sent from my iPhone using Forum Runner

Yes I build the kits which can be purchased either from resellers/workshops such as Davis Performance or directly from me. Please PM me if further details are required.

Quote:

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Originally Posted by LRD414

The compressor is close to the chassis rail and people have damaged it during jacking.

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The most likely cause and possibly the reason the warning changed from amber to red when subsequently trying to adjust height.

Quote:

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Originally Posted by Graeme

The most likely cause and possibly the reason the warning changed from amber to red when subsequently trying to adjust height.

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It's either that or an escalation of the wrong diameter driving situation.

Gary said this earlier (emphasis mine):

Quote:

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Originally Posted by DIS4

.... that trigger the initial warning, such as ABS, DSC, Parking in yellow.
I got suspension light in red after I left border track and drove on highway
..... warned me the maximum speed to 50k, suspension lower as well.

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And maybe this point suggests nothing wrong with compressor:

Quote:

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Originally Posted by DIS4

Normal raise the height is very smooth.

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But on the other hand if it's louder ?

Quote:

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Originally Posted by DIS4

The noise is louder than I went to the border track

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Hard to know without more info and an inspection.

Cheers,
Scott

Quote:

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Originally Posted by LRD414

It's either that or an escalation of the wrong diameter driving situation.

Gary said this earlier (emphasis mine):


And maybe this point suggests nothing wrong with compressor:


But on the other hand if it's louder ?


Hard to know without more info and an inspection.

Cheers,
Scott

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Scott, the off-road height raised and compressor start pumping, the noise is ok. However, the compressor continue to work without touch the height selection. I ha a quick look the cover and wire connected and No sign of physical damage, will inspect more under cover. FYI, the wheel changed is on the right front driver side, shouldn't cause the damage on jacking. Will it possible the leak from suspension ? It might make compressor working so often without touch the height control.

Cheers,

Gary

took off the cover, no apprent damage. however, compressor vibration so loud and become so noticeable. I never felt that much noise, but it is better now when I cleared the mud and tight up nuts. I will see after test drive.

Cheers

Quote:

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Originally Posted by DIS4

took off the cover, no apprent damage. however, compressor vibration so loud and become so noticeable. I never felt that much noise, but it is better now when I cleared the mud and tight up nuts. I will see after test drive.

Cheers

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The air compresser on mine is pretty quiet,what i would do is compare the noise of yours to another D4.

Doing this will give you a good idea if the noise of yours is normal.

Quote:

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Originally Posted by DIS4

took off the cover, no apprent damage. however, compressor vibration so loud and become so noticeable. I never felt that much noise, but it is better now when I cleared the mud and tight up nuts. I will see after test drive.

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The compressor will typically run for a couple of minutes after a height change. You should only be concerned if it's still running constantly after say 5 minutes.

Regarding noise, it is much louder with the cover off because it has a sound deadening liner inside the cover. Your comment about mud is interesting and may be the cause of excessive or extra noise, especially if it was built up around the feet of the compressor.

Not sure which nuts you tightened but that could have been a noise source too.

Do you have any more dash errors or lights, assuming you now have all wheels the same diameter?

Changing the right side front wheel should have zero effect on the suspension or compressor.

Scott