DSC doubles as tyre deflation detector.

[SuperMono]

Managed to pick up two punctures, both L/H tyres have been penetrated by debris and are deflating. Interesting I didn't notice the decreasing pressure but did notice the increased intervention of the DSC on R/H bends. On relatively mild bends the DSC was going nuts, so I stopped and kicked the tyres, then stuck the pressure gauge on. Sure enough the L/H front was down about 8psi compares to the R/H front.
Pumped them back up, no more DSC chatter.

Now for the actual puncture repairs.

[connock]

Hi SuperMono

I have a similar story I had a LHR tyre go out of round , a bit egg shaped and yes the DSC allso went nuts on right turns as the weight was on the left side, got out ran my hand around the tyre to find the lump.

connock

[SuperMono]

Update on this.
Tyres were not puctured, mud had been forced between the tyre and rim while running at low pressures in the mud. So when the mud has gone hard I guess air has been let loose.
Good chance the safety bead has prevented complete deflation when I have dropped hard into a big rut.

Still working out my pressure settings for different conditions, this occured probably at around 18psi, maybe a bit low at the time for a 2.5tonne vehicle.

[CaverD3]

Had the same issue with mine at 22psi mud can easily be forced in.

[Mully]

Yeah Mono it's a bit of a pain when the grinding starts... I've got two corners that will do it every time. Slight touch on the brakes prior to corner entry to avoid... been playing with pressures to see the differences it might make and the two rears like to drop slowly over time.

Just putting new tyres on the rear (today) so hopefully might help fix the problem... and make the wheel bearing sound go away too. :)

Trying the Nexen Roadian HP out for something different.

Cheers... glad I am not alone. :)

[Celtoid]

I had a seriously crap period not long ago when I got three punctures in a week in my D4 SE's OEMs. First was unavoidable, as it was a large nail straight through the tread....I imagine it would have gone through any tyre. But it ****ed me off as I hadn't had a puncture in years....admittedly getting familiar with the D4's jack and tyre change procedure was good practice for what was about to come.

A few days later I got two punctures in as many days, when on forest trails. Rocks straight through the carcass between the tread blocks. Soon after I dumped the Wranglers for Scorpion ATRs.

Anyway, I digress....

The last puncture was only discovered when I was fully loaded and travelling at 100kph. I felt a slight wobble and a 'hollow' thump from the tyre when I ran over a 'cat's eye' middle-line reflector. I did not notice the DSC light come on at all. I pulled over and the tyre was very flat.....side walls had been shredded by the rims. I recon I was potentially moments from a blow-out. :mad:

[VladTepes]

Don't Discos have tyre pressure detectors ? jeez our Citroen has one !

[Celtoid]

Don't Discos have tyre pressure detectors ? jeez our Citroen has one !


Everybody knows you are only paying for the Green Oval, the chassis and the TC system....everything else is free.....what do you expect for nothing?

LOL....I nicked that line from mates who owned a smash repair, when I remarked how Spartan the Ferrari Testarossa was, that was sitting in their shop....

"Well Kev, you pay huge $ for the badge, engine and chassis, everything else comes for free". What do you expect for free? Besides, you wouldn't have heard a sound system over the roar of tyres and engine....

:)

[dangermousehouse]

I had a blow out (Silent Armour) on the nearside rear. We were on back roads and travelling at a fair rate of knots.

My missus turned to me and said that she had heard something (I'm a bit deaf) but I hadn't heard it. About a minute later I thought I'd driven over a mine. By the time I'd cruised to a halt the DSC light was on and the suspension had had a heart attack.

Wasn't anything left of the tyre apart from two rings around each bead. Number 2 son found the door trim about a couple of hundred metres back up the track, where presumably, the tyre had 'flicked' it off in its death throws.

I couldn't get the suspension to raise to get the scissor jack in (she was almost sat on the chassis rail). Not sure if that was operator error. I was just about to dig a hole for the jack, when a couple of touring families turned up. We hadn't seen a soul for about 8 hours, so we were really lucky for the help they gave.

Anyways, DSC for indicating tyre deflation??

Hmmm.......I think I'll get a tyre pressure monitor.

Interestingly, tyre guy at the next town reckoned running low pressures was only for the beach and shouldn't be done on the loose stuff. Tyres run hot and fail. Keep them at 38 to 40 psi he reckoned (which is what I was at, anyways).

[jonesfam]

Dangermouse
After 30years of driving gravel, rock roads I would recommend at least 5 psi lower than normal.
2 reasons, comfort & that allows the tyre to be a bit softer over rocks & gibbers. The y tyre may run a bit warmer but you would normally be doing a reduced speed anyway.
Just my opinion that a softer tyre allows less stone damage.
Jonesfam

[Mully]

Anyone know a way to turn off the monitoring? Wonder if the Faultmate will do it... even with new tyres and even pressures I still get 'the grind' on a couple of corners. Would love to turn this nonsense off it it was possible?

Might need to dig deeper because surely this can't be normal behavior except in the right conditions.

Cheers.

[connock]

Try rolling a tightly blown up balloon over gravel, it dosnt last long. Now try the same with a balloon at 1/2 to 3/4 of the first pressure used. Its pritty hard to get it to pop, same as the tires on your car. Speed also plays a big part. Like jonesfam said less air, and slow down ( try taking in some scenery )

connock

[CaverD3]

Agree, 38-40psi is above recommended for the vehicle. Old school thinking with LT construction tyres.
I have always found I get more punctures with higher pressures. I usually use 30psi on gravel.

[Graeme]

even with new tyres and even pressures I still get 'the grind' on a couple of corners.

Might need to dig deeper because surely this can't be normal behavior except in the right conditions.
The rear tyres are supposed to be at higher pressures than the front.

Perhaps there's a fault with the steering angle sensor that's making DSC think the vehicle is turning tighter than it really is.