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DiscoWeb Bulletin Board » Range Rover - Technical Discussions » Archive through February 02, 2004 » Want to get a 96 RR HSE, Is the Suspension EAS working properly « Previous Next »

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Rodrigo Honores (Maximo1)
New Member
Username: Maximo1

Post Number: 1
Registered: 12-2003
Posted on Thursday, December 11, 2003 - 10:34 am:   Edit Post Delete Post Print Post

The seller told me, that if you let the car for 2 or 3 hours the suspension get completely down. Is that normal?, when you start the engine it get up again. Is this the normal funtion of the EAS? or the system has an air leak. Thanks.
 

Alan Bates (Alanb)
Senior Member
Username: Alanb

Post Number: 368
Registered: 07-2002
Posted on Thursday, December 11, 2003 - 11:05 am:   Edit Post Delete Post Print Post

It is not normal, the EAS should not go completely down in 2 to 3 hours. There is a leak in the system, could be airbag, valve block, air line, etc. On level ground, an RR with a properly functioning EAS should remain in the same position for days or even longer.
 

Mike M (Rangeroverhp)
Member
Username: Rangeroverhp

Post Number: 95
Registered: 09-2003
Posted on Thursday, December 11, 2003 - 11:32 am:   Edit Post Delete Post Print Post

Not normal.
Alan is right.
 

Rodrigo Honores (Maximo1)
New Member
Username: Maximo1

Post Number: 2
Registered: 12-2003
Posted on Thursday, December 11, 2003 - 11:55 am:   Edit Post Delete Post Print Post

Ok understood I will check the car again this time looking for leaks in the airbags and air lines. And I will tell the problem to the seller.
Another question the car has 126k miles is it to much for the 4.6 l engine. Thanks for the advice
 

Rodrigo Honores (Maximo1)
New Member
Username: Maximo1

Post Number: 3
Registered: 12-2003
Posted on Thursday, December 11, 2003 - 12:05 pm:   Edit Post Delete Post Print Post

If there is an air leak in the system?, this failure will triggers the check lamps, or is posible that the car runs without a warning light on having this problem ?.
 

Alan Bates (Alanb)
Senior Member
Username: Alanb

Post Number: 370
Registered: 07-2002
Posted on Thursday, December 11, 2003 - 12:11 pm:   Edit Post Delete Post Print Post

Ask the seller for any maintanence records. If it was not maintained properly, you will play catch up and it will cost you alot. Do not buy a Rover that was not properly maintained unless you plan on spending alot of money. Check this website out if you haven't already:

http://www.rangerovers.net

Sounds like the EAS has a slow leak somewhere, this will not usually trigger an EAS fault.


 

Rob Davison (Nosivad_bor)
Dweb Lounge Member
Username: Nosivad_bor

Post Number: 1329
Registered: 02-2003
Posted on Thursday, December 11, 2003 - 12:31 pm:   Edit Post Delete Post Print Post

check for cracks and dry rot on the bottom of the air bag (springs) look on top and bottom this is the most common spot to leak.

keep in mind if the Air suspension does go out for ~ $500-600USD you can go back to traditional coil spring.

the engine can go for miles and miles if maintained properly. be cautios and ask for service records. Look for oil leaks. there is so much more to say.. especailly concerned that you are living in chile. Seems like it would be harder to find parts there than the USA.


Rob
 

Rodrigo Honores (Maximo1)
New Member
Username: Maximo1

Post Number: 4
Registered: 12-2003
Posted on Thursday, December 11, 2003 - 04:29 pm:   Edit Post Delete Post Print Post

Thanks for the advises. Rodrigo.
 

james (Check38)
New Member
Username: Check38

Post Number: 15
Registered: 10-2003
Posted on Wednesday, December 17, 2003 - 10:10 pm:   Edit Post Delete Post Print Post

My truck does the same thing. As soon as I turn the car off, it goes down very slowly. I thought that was normal. How much longer do I have before they go completely?
 

Alan Bates (Alanb)
Senior Member
Username: Alanb

Post Number: 385
Registered: 07-2002
Posted on Wednesday, December 17, 2003 - 10:33 pm:   Edit Post Delete Post Print Post

Hate to tell you this, but you have a slow leak somewhere. Check your airbags for leaks by spraying some soapy water on them and look for air bubbles. Or bring it in to an LR dealer and have the entire system checked for leaks. Hopefully its just an airbag and you can replace them yourself easily and cheaply. rangerovers.net has some good info on how to do it. You can drive on a slow leak for quite a while, the air compressor might run more often due to the leak, but sooner or later you will have to find out where the leak is and fix it. Your EAS nightmare has begun, good luck.
 

james (Check38)
New Member
Username: Check38

Post Number: 17
Registered: 10-2003
Posted on Thursday, December 18, 2003 - 01:34 pm:   Edit Post Delete Post Print Post

I just got back from the dealer. They told me no leaks or fault codes are popping up. They told me the EAS is working the way it should. It's a 95 4.0. Also they said a misfire code is coming up. They told me to change the plugs and wires. I'm not running on all 8. Any thoughts on all that????? BTW The truck runs perfectly. (Or at least I think)
 

Alan Bates (Alanb)
Senior Member
Username: Alanb

Post Number: 390
Registered: 07-2002
Posted on Thursday, December 18, 2003 - 04:48 pm:   Edit Post Delete Post Print Post

James,

How far does your truck drop overnight? Does it drop to the bumpstops?. The EAS will try to level itself even after you shut it off and if you are not on level ground it will let air out of the system till it levels out, that is normal. What is not normal is if you are on your bumpstops when you are parked on level ground. When I finally got my EAS working correctly in my previous 95 4.0se, it would sit at the same height for days, but in really cold weather the car would drop a little.
 

james (Check38)
New Member
Username: Check38

Post Number: 19
Registered: 10-2003
Posted on Thursday, December 18, 2003 - 06:16 pm:   Edit Post Delete Post Print Post

Thanks Alan, that makes alot of sense now. It doesnt drop much at all. And it only does it sometimes (i guess when it's trying to level out)
 

J E Robison Service Co (Robisonservice)
Member
Username: Robisonservice

Post Number: 118
Registered: 10-2002
Posted on Monday, December 29, 2003 - 09:17 pm:   Edit Post Delete Post Print Post

As with many things on Rovers there are degrees of "rightness." A new Rover should not have any leaks. It should sit at height for days and not budge. As the air bags age they begin to develop small cracks, and air loss begins to occur.

When you are driving the compressor constantly replenishes the air tank, which in turn keeps the air bags topped off, so you don't notice the leaks.

When you shut the truck off it will level itself until it loses a certain amount of air in the tank, at which point it will stop trying to level and sink to the ground if all the air is lost. It does this to preserve a supply of air in the tank.

The tank will still be full of air, so it will pop back up when re-started.

The behaviour above is normal, but it's less than ideal. At some point you become unhappy with the degree to which your truck settles. Maybe it went from sagging after being parked over the weekend to being flat overnight, or even going flat during the workday. In any case, the corrective action is usually new airbags, and sometimes a new valve body (the valves are in constant action and they too begin to lose their perfect seal)

Or you can convert to springs.

Most high mile Rovers have some degree of leakage. People's tolerance varies, often as a function of their budget.
 

Chris W. (Dcwhybrew)
Member
Username: Dcwhybrew

Post Number: 123
Registered: 05-2003
Posted on Wednesday, December 31, 2003 - 12:53 am:   Edit Post Delete Post Print Post

John, I have had a similar problem. Our 4.6 HSE sat for a week and when we returned home the suspension was flat. Well, no big deal I thought...however when I started the truck up I got an EAS fault. Any ideas here? ours is a 97 with 84k miles.
 

J E Robison Service Co (Robisonservice)
Member
Username: Robisonservice

Post Number: 126
Registered: 10-2002
Posted on Wednesday, December 31, 2003 - 03:38 pm:   Edit Post Delete Post Print Post

When you get an EAS fault message on startup when the truck sank to the bump stops the usual reason is that the height sensors were pushed beyond their usual limits of travel.

In some cases you can reset it with the Testbook, but more often a new sensor is needed.

 

Chris W. (Dcwhybrew)
Member
Username: Dcwhybrew

Post Number: 124
Registered: 05-2003
Posted on Wednesday, December 31, 2003 - 05:55 pm:   Edit Post Delete Post Print Post

John, thanks for your help...one follow up question though. Is it possible for these sensors to reinflate themselves? I ask because the suspension reinflated and we took it for a short drive. I did notice that the passenger side appeared to be slightly higher than the driver side. However when I went out to the car an hour later and started it, I didn't get the EAS fault. That's why I was asking if it's possible that the sensors could correct themselves?

Thanks again!!
 

J E Robison Service Co (Robisonservice)
Member
Username: Robisonservice

Post Number: 127
Registered: 10-2002
Posted on Wednesday, December 31, 2003 - 10:49 pm:   Edit Post Delete Post Print Post

The sensors do not inflate. The air bags inflate. The sensors are electrical devices hooked to the suspension in each of the four corners to provide height feedback to the computer that runs the suspension.

When one of them does not send a valid signal you get that message.

In Classic Rovers when this happened you sank to the bump stops - you were all done. Newer Rovers are a bit smarter. They can calculate the position of any one corner from the other three readings, so the suspension can survive one sensor failure. But when two go out, you go flat.

So with one sensosr giving a bad reading your truck pumped up anyway, and when it was up to height the message went away because the sensor started working again.

Don't tempt fate by repeating this for months. Get it fixed before you have to get it towed.
 

Chris W. (Dcwhybrew)
Member
Username: Dcwhybrew

Post Number: 125
Registered: 05-2003
Posted on Thursday, January 01, 2004 - 04:58 pm:   Edit Post Delete Post Print Post

HA! You're right sensors don't inflate...my fault. My brain was moving faster than my typing. I meant to ask if it were possible for the sensors to correct themselves...HA HA. Sorry.

Anyway, thanks for answering my question!!
 

Andrew Parker (P38memate)
New Member
Username: P38memate

Post Number: 17
Registered: 12-2003
Posted on Sunday, January 04, 2004 - 11:00 pm:   Edit Post Delete Post Print Post

Here is a trick I have learned. If your P38 is on the bump stop for some reason. The EAS will trigger an EAS fault which is to help the Dealer diagnose the problem. If the leak isn't bad the system will pump up and your all set, but here is the trick. If you jack up the frame so the suspension is not on the bump stops you can avoid the fault message. This might prove usefull if you get a flashing set of EAS lamps on the dash. I've had this happen and was able to turn off the engine jack up the frame and restart the engine. Once I shut the door she flashed and pumped up to normal height with out any error. Granted this was the one rear passenger side which had an o-ring pair that were tired and not sealing well in freezing high desert night time tempuratures.

There is one other thing to consider when we have a leaking EAS system. The air that is compressed into the tank goes through the dryer. When the EAS system lowers a corner it sends the air back throught the dryer to carry any moisture out through the muffler on the valve block. So, if you continue to run a leaking EAS system you are short changing the systms ability to regenerate the dryer. If the EAS is left like this you will start saturating the dryer and water drops will start to accumulate in the EAS system. Bad voodoo for the vlaves and the whole system in general.
 

Jorge D. Hinojos (Jorge_d_hinojos)
New Member
Username: Jorge_d_hinojos

Post Number: 25
Registered: 10-2003
Posted on Tuesday, January 27, 2004 - 08:46 pm:   Edit Post Delete Post Print Post

Andrew,

I am having this problem right now on my 96 RR (4.0). the hint here is the cold temperatures....my wife started driving the RR and suddenly it trew the code and the rig when to the lowest level. being away from a dealership, I am trying to narrow down the problem before I go for the diagnose. can you explain a bit more the process of jacking up the RR to try to reset the system..if I understood correctly?

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