Member Since: 04 Sep 2017
Location: Cannock, Staffordshire
Posts: 2
Hi all. New to the forum so bear with me.
I've have a similar problem and have a DIsco 3 for about 6months now. It's an 08 plate too and I keep getting an intermittent fault.
When the car reaches around 50mph or high revs a park brake fault (HDC park brake fault) appears and the suspension lowers and the car goes into limp mode.
In limp mode the car over revs and has no power at low speed and the fault is corrected by switching the car off and then on again.
I've had the error messages wiped and there is only a light bulb error message appear but all light and bulbs are working.
No details were given on the error message as the code reader was a generic one not specific to Land Rovers.
I've changed the fuel filter as I thought it might be the fuel supply and this hasn't corrected the problem. I don't really want to go to the expense of changing the fuel pump if it's not that.
Can any one help and what was the fault of the above thread. Andy
4th Sep 2017 4:53 pm
jetmech
Member Since: 22 Feb 2016
Location: Suffolk
Posts: 269
Hello Andy
This fault is not fixed yet!
You will need to know the actual codes, although, as I am finding, it still might not be clear what the exact problem is! Good luck Simon.
2008MY Dicovery 3 TDV6 SE Manual
4th Sep 2017 5:25 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
jetmech wrote:
Thanks guys. I was thinking that my fuel pressure was a bit low at 2000rpm.
Dutch, just reset and went for a drive this was the log.
Click image to enlarge
Looks like the red one is faulty!
Jippie!
IID Tool rocks!!
4th Sep 2017 8:08 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
Click image to enlarge
The scrambly lines is what you are looking for.
You see it the best when standing still. You might want to Zoom into the Graphic.
Mine looked like this:
Click image to enlarge
You cannot find this fault without logging!
If you read the sensors Values as Numbers, the values may seem totaly normal.
4th Sep 2017 8:37 pm
jetmech
Member Since: 22 Feb 2016
Location: Suffolk
Posts: 269
Had another play today.
The test gauge that I purchased is pretty low quality and the scale is too high for accurate readings, but the needle doesn't even lift off the stop, let alone approach the first number, which is 10psi. I will try a different gauge tomorrow. But also the pump only drawing 3.3 Amps at fuse 1. Which according to Robbies excellent guide is probably a bit low.Simon.
2008MY Dicovery 3 TDV6 SE Manual
6th Sep 2017 4:10 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
Did you replace your front Left Height sensor?
6th Sep 2017 4:57 pm
jetmech
Member Since: 22 Feb 2016
Location: Suffolk
Posts: 269
Not yet. But I would expect the lift pump to work despite any other faults. Especially as it stands, with the faults cleared and the vehicle stationary.Simon.
2008MY Dicovery 3 TDV6 SE Manual
6th Sep 2017 5:03 pm
jetmech
Member Since: 22 Feb 2016
Location: Suffolk
Posts: 269
I have now checked the fuel pressure at the schrader valve with a working gauge. I am getting 6.5 psi with the engine off but with the engine at idle the needle fluctuates wildly between 1.5 and 7 psi.
I think I am going to replace the lift pump first.Simon.
2008MY Dicovery 3 TDV6 SE Manual
7th Sep 2017 10:30 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13612
came across this and didn't know if it may be of use to u
aplogies , please ignore me as u meant the LP pump
7th Sep 2017 10:38 am
AndyDisco3
Member Since: 04 Sep 2017
Location: Cannock, Staffordshire
Posts: 2
Thanks....to note I now have a new error message which brings a message on the dash display that now is permanently on....the message details to slow down or vehicle will lower. I'm no expert but is this indicating more towards suspension sensors? I really need to get an error message reader.....any advice?
7th Sep 2017 12:43 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
jetmech wrote:
Not yet. But I would expect the lift pump to work despite any other faults. Especially as it stands, with the faults cleared and the vehicle stationary.
As long as the faulty sensor gives faulty Values your car will think something is terribly wrong and disregulate all other things. I would Fix this first.
7th Sep 2017 2:13 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
jetmech wrote:
I have now checked the fuel pressure at the schrader valve with a working gauge. I am getting 6.5 psi with the engine off but with the engine at idle the needle fluctuates wildly between 1.5 and 7 psi.
I think I am going to replace the lift pump first.
Why don´t you replace the sensor first? It costs next to nothing.
7th Sep 2017 2:16 pm
Mole734
Member Since: 12 Aug 2016
Location: Derbyshire
Posts: 161
The 'Slow down or car will lower' message is shown when you are in off road mode and exceed 30mph
7th Sep 2017 2:16 pm
jetmech
Member Since: 22 Feb 2016
Location: Suffolk
Posts: 269
Dutchrockboy wrote:
Why don´t you replace the sensor first? It costs next to nothing.
To my mind it doesn't look much worse than the others. It starts and finishes in a straight line. With the car stationary and no faults displayed I can't see it being a reason for the poor performance of the lift pump.
The road outside my house is not very smooth, which might account for the graph readings.
I appreciate your advise though.Simon.
2008MY Dicovery 3 TDV6 SE Manual
7th Sep 2017 4:41 pm
Dutchrockboy
Member Since: 16 Apr 2014
Location: Germany
Posts: 85
The effect is a vicious cycle.
The Defectiv signal causes the Computer to think something is "way wrong", thus sinking the car.
Every time you restart the car the compressorpump has to perform 100%. Cooling down is hardly possible.
This is stressing you old compressor.
The circle goes further, after you restart 3 times, the old compressor cant cope, and you get the "not raising fast enough" Fault.
After you restart further the compressor might overheat, turning off, giving even more Faults.
A new compressor might be able to compensate this for a while, but IMHO it is not the cause and not the right sollution.
Wenn everything is normal, the compressor only has to pump some adjustments. So it is only used for say, 20% and can cool down in between. So an old compressor will do for a long time. I have driven 40000km with my old compressor after i put in a new sensor having no compressor problems at all. It has don 225.000 km so far.
Wenn standing still, It must be a straight line.
From your Post, to me It does not look like a straight line to me.
But Maybe the picture just isnt detailed enough and maybe it is a straight line...
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