Disco 4 Engine System Failure Warning - beware!

[PeterOZ]

Hi Andrew, and your correct, my gear is not approved but is on LRA’s recommended accessories list, as sent to all the dealers.

When LRA tested my gear, they told me it did not cause any problems and when I asked about it being officially approved I was told that this is never done with third party accessories.

Cheers for the heads up anyway Andrew.

BTW, there is a device that replaces a fuse in Toyotas, that causes the alternator voltage to increase by 0.6 to 0.7v and these must be removed before the Toyota goes in for a service or if it’s discovered, the warranty is voided.

So if you have any mates using this device, warn them.

Tis called a very sneaky diode

[PeterOZ]

A manufacturer cannot void the whole warranty. They have the right to refuse a warranty claim if the failure has been caused or contributed to by non approved accessories or modification. The claim that a diff failure is due to aftermarket shocks would not wash if there was a dispute and the owner pushed the issue, there is also an anti-competition isssue in that case.

Adding anything to your vehicle will run the risk of a warranty repair refusal and could cause you hassle with LR in the event of problems. If they claim it is something else causing it you may need to fight to get the claim approved.

So dofit Pirelli's in lieu of the manglers or they will void your warranty!


Oh to be a lawyer in such cases.

I'm beinjg facetious by the way.

[Tombie]

So dofit Pirelli's in lieu of the manglers or they will void your warranty!


Oh to be a lawyer in such cases.

I'm being facetious by the way.

Only if they are outside the dimensions specified

And yeah - I get the facetiousness

problem with hiring the lawyer is the bigger pockets of the other party...

[Graeme]

Not being critical,you shouldnt use cruise whilst towing a heavy load in hilly country.

No different to sticking the boot in to maintain speed or more boot to accelerate except when faulty ecm CC programming causes a should-not-occur logic error.

[Tombie]

Not being critical,you shouldnt use cruise whilst towing a heavy load in hilly country.You are putting alot of extra stress on the vehicle,it cant "see" the hill coming,so when the strain of the terrain comes on the ecu whips the engine harder to maintain the target speed.Sure use the cruise in flat country,when hills are around drive it.
Andrew

Sorry mate, have to completely disagree here...

The engines and driveline are more than capable of dealing with any driveable gradient, with correct shifting etc...

Once I'm out of town, the cruise goes on - and stays on...

[SBD4]

Have to agree with Graeme and Mike, if the conditions are not with in the parameters of cruise control then it should just disengage, not cause limp mode.

[BobD]

Well just to raise this again, I got the red triangle this weekend on my 2010 3.0 D4. Similar circumstances as outlined, towing on the Hume for around 90min and cruise cut out going up a hill. Limped into Mittagong and did a hard reset and some other stuff but the Engine System Failure warning remains. Disconnected the brake controler just to be sure and made it to Wondilly River Station without incident, coming home no problems till around Picton about 90min of driving again and I am struggling to make 80km/hr up a slight rise with the camper trailer on.

Parked the car up while I unpacked and then took it for a drive after around an hour and it was back to full power or very close to it. Have it booked into Graeme Cooper tomorrow for a once over. I can only hope that the PCM upgrade has not been done and it will be a simple fix. I will update with the findings.

Regards
Paul

Paul, if you don't get any joy check the plastic inlet manifolds. My 2010 3.0l did something similar and was OK for a while after clearing the fault but after a few days it would fault again immediately after clearing faults. It turned out to be a cracked inlet manifold (we think due to a broken T piece in the vacuum pipe on top of the engine, which meant there was no waste gate). It took my guys a long time to find the problem and it is not cheap to fix. I replaced both manifolds on mine in case the second one also failed soon.

[nelpd96]

Righto, the diagnosis was invalid data from ABS and internal module injector control performance. Both error codes were cleared and fuel pressure was checked along with a software update, new fuel filter and pump learn procedure. We will see how it all goes, interestingly there was another D4 there with the same symptoms as mine but had logged voltage issues rather than injectors like mine.

Regards
Paul

[jonrichkl]

Hi All,

I'm Conscious that this is an old thread now but I'll give it a go...

I've just experienced the same issue - Engine Systems Failure, red triangle and massive loss of power in my 2011 3.0l D4 with 90k on the clock.

Difference with my situation though is that although I had just switched cruise control on I wasn't towing and was coasting downhill I.e. Almost no load on engine.

The car limped home with no power for 15kms where I turned it off and on again and now all seems fine, power returned and drives normally although the red triangle remains and I suspect the shift patterns seem very slightly different.

I haven't done a hard reset but have done the lock unlock and ignition cycling recommended elsewhere on the forum. None has seemed to make any difference but as I said the car drives fine now.

All the garages, independent and dealer, are closed until the 3rd so will take it in then. Any recommendations for this type of check up in sydney? I use Graham Cooper, usually.

Also, any thoughts on why this would occur without towing like most other posters? Could it be more serious than just software?

Cheers

[SBD4]

You would need to post the fualt codes to have any hope of identifying the likely cause of the issue. Could be any of the reasons outlined in the thread so far.

Post up the codes if you have fault reader and we'll have a go at what it might be.

BTW when a fault like this is registered, the system will keep it in your face until it is properly reset or dealt with.