Disco 4 Engine System Failure Warning - beware!

**stig0000** · 4th May 2011, 06:24 AM

Originally Posted by roamer

Maybe the fault was the computer,hence reset cures problem.

Cheers Ken

hes right,

some times, internal software throws things out if it matches a perfect condition blah blah blah,

**Redback** · 4th May 2011, 07:30 AM

So this is only the 3.0lt having this problem

Baz.

**drivesafe** · 4th May 2011, 08:15 AM

Originally Posted by Redback

So this is only the 3.0lt having this problem

Yep and so far, as far as I can workout, it’s not a mechanical failure but more a software issue.

**Scouse** · 4th May 2011, 09:50 AM

Originally Posted by Redback

So this is only the 3.0lt having this problem

Baz.

You should be safe

.

**Redback** · 4th May 2011, 10:22 AM

Originally Posted by Scouse

You should be safe

.

ssssshhhhh

christop · 4th May 2011, 06:27 PM

Being thinking further about my fault message.
I was towing in cruise (S) up a long rise. The auto failed to change down when it began to labour - 1800 rpm down to about 1400 i reckon.
I then shifted into manual mode 5th and then 4th. Car didn't like that, as warning appears.
IMO the computer then registers a problem..... my concern is the auto didn't change down a gear initially.
Interestingly i reckon it failed to change once previously on my trip.
Unfortunately due to the torque this engine has and the smoothness of trans you don't notice the vehicles behaviour under narmal.
A mate said also that jeep recommends not to tow in cruise in his new cherokee so...
LRA didn't have any answers apart from an unknown fault with a code.
They did look after me though. Cr

**gghaggis** · 4th May 2011, 06:43 PM

It is recommended that you don't tow (significant) loads using cruise control for good reason. The CC is quite aggressive and can easily exceed the EGT envelope set by the engine management.

Cheers

Gordon

christop · 4th May 2011, 07:19 PM

Ta Gordon
It does all make some sense, and basically i am happy to drive in a different manner. I would however be interested to know why the auto doesn't (or didn't) change down in this scenario?

Chris

**drivesafe** · 4th May 2011, 08:04 PM

Hi Gordon, have you heard of anyone actually damaging anything or is it as has been the case with all of these scenarios that I’ve heard of, that there is no damage, just an operational programming error, or what ever?

**gghaggis** · 5th May 2011, 10:27 AM

Originally Posted by drivesafe

Hi Gordon, have you heard of anyone actually damaging anything or is it as has been the case with all of these scenarios that I’ve heard of, that there is no damage, just an operational programming error, or what ever?

In most cases it seems to be a software issue, triggering the "Engine Systems Failure", which reduces power until a hard reset is performed. Virtually all cases involve towing + cruise control, or towing and consistent hard acceleration.

I've heard of one case where there was turbo damage, but it's not clear if this resulted solely from a specific instance of towing and CC.

Cheers,

Gordon

Thread: Disco 4 Engine System Failure Warning - beware!

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