Isuzu D-max fuel filter issues again.

[jhorr30]

Not had any more fuel filter problems.
Pickup is going in on Friday for the 24k service which will probably cost as much as a small countries national debt.
Turns out that it should have had 2 upgrades done at its pdi in June 2012.
It has been in at the supplying dealer and the new dealer at least a dozen times since November 2012. The most recent dealer has upgraded the software on the engine and gearbox at least 3x and has been checking engine oil levels and changing it if it's too full every 1000miles for the last 6000 miles.
Not in the least happy.
Spoils what I think is a bloody good product.
This is Isuzu/ the dealers last chance.
We have changed 2 other 4x4 pickups in the last 6 months. Both haven't been Isuzu.

 

[iolair]

I've been told to watch out for increasing oil level issue as well - already been changed once as too high. On filter issue Isuzu say raise costs with dealer and dealer says matter for Isuzu UK. Feel that just being bounced about in hope that will go away and less than happy with overall customer support. Also don't see why Isuzu recommend should only use one fuel supplier. D max supposed to be a workhorse and should be capable of running on any diesel fuel if up to spec. Would have to think seriously before consider this make again. Shame as like you feel otherwise good product.

 

[Suffolk Serf]

I'm glad that I've ordered a Hilux!

 

[Blue.]

I've been told to watch out for increasing oil level issue as well - already been changed once as too high. On filter issue Isuzu say raise costs with dealer and dealer says matter for Isuzu UK. Feel that just being bounced about in hope that will go away and less than happy with overall customer support. Also don't see why Isuzu recommend should only use one fuel supplier. D max supposed to be a workhorse and should be capable of running on any diesel fuel if up to spec. Would have to think seriously before consider this make again. Shame as like you feel otherwise good product.

Put a new filter on mine at about 13.5k miles it cost £13,not worth going into the dealers took me less than 5 mins to fit.

 

[Mursal]

Yes, oil level seems to increase due to diesel from the injectors. As long as the engine doesn't start running on the fumes, all will be well. Quite a serious issue, that Izuzu seem to be playing down, by there attitude to rectifying the problem.

 

[BigOllie]

We have done 32000 in our farms 13 plate Isuzu had a fuel pressure light come up, changed the filter and has been fine for last 9000 miles

 

[Mursal]

Unfortunately there seems to be a problem with fuel leaking into the engine sump on a bad patch of engines.
The oil level rises on the dipstick

The fuel pressure light is only due to dirty fuel filter unrelated to the leak, as far as I know

 

[jhorr30]

The dealer told me the problem was short journeys clogging up the dpf filter on the exhaust and it regenerating the filter too often.
I do a few journeys of 10 miles or so but most of them are on country roads or dual carriageways.
Didn't have the fuel in engine oil problem when I first had it. Had to top up the engine oil just before the 12000 mile service. Now it gets too full before it's done 1000 miles.
If Isuzu would replace the vehicle I would happily pay the payments for the full duration of my present agreement but starting from month one again.
I have been patient and quite restrained with the problems up to now, but I can see that changing soon.

 

[Ley253]

well. you do seem to be a forgiving lot! When I worked for Leyland, if we had sent vehicles out with recurring problems like this, we would have been besieged by angry owners,and the national press. And, every one of those owners would have had a replacement vehicle to use.
Fuel getting in the sump? Thats an oil change, at dealers cost, just draining a bit out will result in a fuel lubricated engine! Seems They have learnt nothing from all the recalls the 3.1 engine caused. Were I to own such junk, it would be back at the dealers, it clearly is not of "mercantable quality"

 

[Lincsman]

well. you do seem to be a forgiving lot! When I worked for Leyland, if we had sent vehicles out with recurring problems like this, we would have been besieged by angry owners,and the national press. And, every one of those owners would have had a replacement vehicle to use.
Fuel getting in the sump? Thats an oil change, at dealers cost, just draining a bit out will result in a fuel lubricated engine! Seems They have learnt nothing from all the recalls the 3.1 engine caused. Were I to own such junk, it would be back at the dealers, it clearly is not of "mercantable quality"

3.0 the 3.1 were fine (old school fuel system)

 

[stroller]

My DMax is going back tomorrow for the second time due to oil level rising. Dealers claims that there is a 'fix' for it, he said that the last time.

 

[Cowabunga]

well. you do seem to be a forgiving lot! When I worked for Leyland, if we had sent vehicles out with recurring problems like this, we would have been besieged by angry owners,and the national press. And, every one of those owners would have had a replacement vehicle to use.
Fuel getting in the sump? Thats an oil change, at dealers cost, just draining a bit out will result in a fuel lubricated engine! Seems They have learnt nothing from all the recalls the 3.1 engine caused. Were I to own such junk, it would be back at the dealers, it clearly is not of "mercantable quality"

The 3.1 was excellent. It was the later 3.0 direct injection that had dodgy injectors that would fill the sump with fuel.
History seems to be repeating itself.

The reason this time would seem to be the way these engines force a regeneration by over fuelling the engine and altering the timing rather than having an extra injector lighting the DPF directly. The fuel isn't burnt in the cylinder and is meant to heat the DPF but it seems to run off the cylinder walls into the sump. Or the injectors leak like the old 3.0 Trooper engine?

 

[Mursal]

I thought it was injectors leaking in the head, because seemingly "the fix" is is to reduce fuel rail pressure and reseal.

 

[Ley253]

I worked for a used 4x4 dealer in Somerset, and we sold four (it was some time ago) 3.1 engined Isuzu vehicles, and every one had to have a new engine on warrenty!As I remember faults were poor running and coolant loss.
Mind you, they were only trying to keep up with Land Rover, who had just introduced the self dismantling TD5! Three of those threw the oil pump drive away, and one added the injector drive to the list! We had no trouble with the wiring loom though, vehicles were not old enough.

 

[milkloss]

If I had the fuel in the oil issue I would not drive the vehicle. Surely it is drastically reducing the life of the engine? I think a loan car should be provided until a repair is found. If they won't play ball rent one and send them the bill.

Blaming bad fuel from Grangemouth is just a bull sh&t tactic and you shouldn't swallow it in any way at all. Throw the truck back in their face and demand your money back as it is not fit for purpose.

When I had imprezas the dealer was a good gang and I knew the workshop boys pretty well. Went through 4 sets of shockers on one car! Don't think I would go near an IM car now.

 

[Cowabunga]

I worked for a used 4x4 dealer in Somerset, and we sold four (it was some time ago) 3.1 engined Isuzu vehicles, and every one had to have a new engine on warrenty!As I remember faults were poor running and coolant loss.
Mind you, they were only trying to keep up with Land Rover, who had just introduced the self dismantling TD5! Three of those threw the oil pump drive away, and one added the injector drive to the list! We had no trouble with the wiring loom though, vehicles were not old enough.

The 3.1 was/is an indirect injection engine that was long lived and trouble free. Introduced in May 1993, long long before the TD5.

It was the later 3.0 direct injection with camshaft driven oil-over-fuel unit-injectors that had serious issues.

 

[Cowabunga]

If I had the fuel in the oil issue I would not drive the vehicle. Surely it is drastically reducing the life of the engine? I think a loan car should be provided until a repair is found. If they won't play ball rent one and send them the bill.

You would think that fuel washing the cylinder walls would drastically reduce the life of the rings and cylinders if not the pistons themselves. Also the fuel-diluted sump oil must surely have a drastically reduced film strength, so would cause overall wear to increase quickly. I would not be happy.

 

[Davey]

These problems don't seem to be hurting their popularity round here as almost every new truck I see is a dmax

 

[Cowabunga]

These problems don't seem to be hurting their popularity round here as almost every new truck I see is a dmax

The spec is right and they're cheap. I had thought of one myself before the end of the tax year but I'll leave it until they settle down or maybe get another Ford. What I'd really like is a king cab version of the full time auto VW with a more workmanlike trim, but they only sell the hairdresser's version.

 

[cattow]

These problems don't seem to be hurting their popularity round here as almost every new truck I see is a dmax

B&B have sold a lot round here and no one is admitting to problems, hence I've got one on the next boat load