looking at 2006 RRS with suspension fault - Land Rover Forums : Land Rover and Range Rover Forum
 
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post #1 of 4 (permalink) Old 07-07-2019, 05:40 PM Thread Starter
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looking at 2006 RRS with suspension fault

hey all you rangies,

i've been a discoverer for over 10 years, but my wife is more interested in a range rover to dink around it.
there's a 2006 RRS for around $4k near me, that is slammed down with a suspension fault.

assuming the whole system isn't worth repairing, and people still doing coil spring conversions with these?
is troubleshooting as simple as electrical -> compressor -> lines -> bags?
are parts still expensive as crap (for the air)?

cheers

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
2001 Disco 2 SE - SOLD
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post #2 of 4 (permalink) Old 07-08-2019, 10:43 AM
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The 2006 RRS had an air compressor with a weak intake valve spring. The spring wouldn't keep the valve closed and allowed air to escape which caused the compressor to not produce enough pressure. Then the system would say "well, we didn't get the right pressure in the allotted time, let's go to slammed mode". I had this problem with mine and replaced the compressor with one from ebay for like $250. I think my replacement was off a 2008. Looks like you can get them on ebay starting at $170 now. Before going down that route, pull the suspension fault code and if it's the "pressure wasn't reached in time" fault. If it was, it's probably the compressor... or a big system leak somewhere. Replacing the compressor is totally doable your garage. If you have a Disco, you know how to work on LRs.

The bags seem to be pretty reliable AFAIK. A leaky bag would make one corner low and the compressor would run all the time to keep it up. It'd show up as one corner sagging after it sits for a bit. You can get replacement bags for $430 on the front and $307 on the back each from Atlantic British. (They're on sale now) I'd replace the air shocks before converting to springs because the air ride is just so darn comfortable and capable in offroad height. It also has "Extended mode" for if it detects that it's high-centered on something. It'll push an extra few inches to try and get out of it. Really sweet system.

If it has the ACE system, inspect the sway bars and look for pop-can sized "thing" in the middle. This is the ACE "thing" that uses high pressure hydraulic fluid to resist cornering and keep the Range level. Works great. Check those can-looking things for leaks / weeps. Mine are starting to weep a bit and that's common for this age. If they are leaking badly, that can cause a suspension fault, but it'd show up as ACE in the dash. You don't want a Range with really leaky ACE swaybars. They're stupid-expensive. If they are weeping, keep an eye on them and keep the fluid topped up because the system can be trashed by running low.

Another good thing to know is that these Ranges lose their friggin mind if the battery is bad or if they sit for a long time without charging. Low voltage will cause a suspension fault because the computer doesn't get info from the height sensors. When this happens you usually see transmission, HDC, and suspension faults as well. Sometimes you see ACE faults too, but that seems to only happen around 10v.

My RRS is a monster offroad. It's got triple locking diffs and amazing traction control. It's an absolute blast to own!

----
2014 Range Rover Sport HSE
2006 Range Rover Sport Supercharged
2004 Discovery SE7
2003 Discovery S7 (sold)

What do you call a Land Rover that doesn't leak? Empty.
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post #3 of 4 (permalink) Old 07-08-2019, 12:19 PM Thread Starter
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Thank you SO much for that answer. That’s kind of what I was thinking. I just went to see the truck this morning, and the compressor runs for a few seconds and then shuts off. Seems like it’s not running long enough to leak out anywhere. It turns on when it’s supposed to; after closing door or when invoked.

Also oddly the alarm is going bonkers. It was complaining about the hood being open so I popped the plug off the latch and shorted with a paper clip, and got it running to test drive. Any experience with that?

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
2001 Disco 2 SE - SOLD
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post #4 of 4 (permalink) Old 07-15-2019, 08:30 AM
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I see you bought it! Congrats! Time to bring this guy back to life!

No - I've had no experiences with a bad hood open sensor. Maybe check if the hood is making full contact with the switch to depress the plunger. Can you manually hold it down and make it happy? If not, and shorting it works, looks like you need a new switch.

----
2014 Range Rover Sport HSE
2006 Range Rover Sport Supercharged
2004 Discovery SE7
2003 Discovery S7 (sold)

What do you call a Land Rover that doesn't leak? Empty.
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