Cars of Crackers: HFM?!

January 10

DIY able? it doesn't need to be timed apparently?

1,227 · January 10

Have you filled up with fuel anywhere recently that you haven't used before?

Might be worth checking if fuel is contaminated.

Hopefully it can be done cheaper 😐

1,227 · January 10

https://www.ashwoodjagparts.co.uk/product-page/high-pressure-fuel-pump-jaguar-xj-3-0-diesel-2010-15-bosch-reman-jde38562

7,323 · January 10

58 minutes ago, Cento16v said:

Have you filled up with fuel anywhere recently that you haven't used before?

Might be worth checking if fuel is contaminated.

Hopefully it can be done cheaper 😐

No, nothing out of the ordinary.

Thanks for the link to the reman pump. I have a feeling the garage might have given me a Fuck Off Price so I'll ring around a few places on Monday.

It'll get repaired and live on. Sometimes we get bitten.

1,227 · January 10

It seems a lot for a hpfp replacement, maybe they don't want the work like you said.

7,323 · January 10

8 minutes ago, Cento16v said:

It seems a lot for a hpfp replacement, maybe they don't want the work like you said.

Agreed. There's a couple of other garages locally that deal with JLR stuff, so might be better placed to give me an estimate.

It's still a low-miles and full-history car, so it's worth getting sorted I think.

59,235 · January 10

Could you not get your friendly local @Talbot to have a look at it? He knows his way around a Peugeot diesel engine...

19,787 · January 10

For the quote given I would have expected injectors as well. I wonder if it has been misfuelled in the past / ran low on diesel for prolonged periods? It's not common on XF's but not unheard of either. But it can happen on any diesel.

1,227 · January 10

No history of misfuelling, it would have been put on the restricted warranty register if it had.

It was under Jaguar Extended Warranty from being 3 until it was 10, then onto equivalent cover after that, and they won't cover it if it has been misfuelled and the full Jaguar rectification process hasn't been carried out.

It's only had premium diesel through it for the last four years at least.

22,533 · January 10

3 hours ago, Crackers said:

I have news, and it is Not Good™️.

High pressure fuel pump is lunched. Estimate is between £2000 and £2500. If it's filled the injectors with swarf and killed them, then that'll be another stack on top.

Going to lock myself in a darkened room for a bit while I figure out how to approach this, I think.

The high pressure fuel pump on my c5 died in the Alsace in France on holiday back in 2011. It was 800euro- rac paid for the hotel and new ferry crossing home. Had it happened in the uk I would not have bothered getting it done.

I would sell the jag for parts at this stage .

7,323 · January 10

15 minutes ago, richardmorris said:

I would sell the jag for parts at this stage .

...and make an instant £4000 loss.

As wince-inducing as it is to get it repaired, it's the only sensible option. Other than being a non-runner, there's nothing else this car needs right now.

22,533 · January 10

5 minutes ago, Crackers said:

...and make an instant £4000 loss.

As wince-inducing as it is to get it repaired, it's the only sensible option. Other than being a non-runner, there's nothing else this car needs right now.

Sorry, I didn’t recall the original cost.

11,128 · January 10

The fuel filter needs to be carefully examined for any trace of metallic swarf.

If none is found, then hopefully it shouldn’t have contaminated the injectors and a replacement with one of those refurb units linked to above shouldn’t be too spiteful.

If sparkly bits are found, then it will unfortunately become significantly more expensive.

28,893 · January 10

On 05/01/2025 at 12:43, Crackers said:

Managed to buy a bloody car!

Dibs please, I very nearly bought one of these as a ford direct.

Shame about the Jag, but worth just getting it sorted.

19,787 · January 10

22 minutes ago, Crackers said:

...and make an instant £4000 loss.

As wince-inducing as it is to get it repaired, it's the only sensible option. Other than being a non-runner, there's nothing else this car needs right now.

You are right. If it were mine i'd bite the bullet and get it repaired - it owes you too much.

3,223 · January 10

There must be loads of knackered engines for these; could one be acquired to cannibalise the fuel injection system?

36,849 · January 10

4 hours ago, Crackers said:

High pressure fuel pump is lunched. Estimate is between £2000 and £2500. If it's filled the injectors with swarf and killed them, then that'll be another stack on top.

Presumably Bosch CP4? TADIS at this age. Some on here say it's very rare but I've seen a few including another family member.

3 years and a few weeks ago my wife's 2010 A4 2.0TDI did that, 3 days before Christmas day.

Problem is that the sparkly bits go through the return line on the injectors as they become blocked and the pressure is too high. Likewise return valve on the rail.

Minimum you need hpfp, injectors, return valve and fuel rail pressure sensor. Rail, pipes, filters, tank, any low pressure pumps (steel sticks to the magnet) need all need tremendous flushing. Main dealers replace them all.

Get any of those sparkly bits back into the pump or injectors if not utterly flushed then game over again.

Some have found some of the sparkly bits are so mushed finely (remember 2700+ bar of pressure inside that pump), it can get through even the best fuel filters. Honestly not sure how true that is.

The cheapest option I reckoned was a complete second hand engine with everything on it. About £1k for the A4 at the time. Then labour of which replacing both of the low pressure pumps, filters and bloody good tank flush.

So what did I do? At 210k miles with 205k of them between my parents and myself...

I was out and binned it. Bye, immaculate otherwise, old faithful.🫡🫡🫡🫡 👋👋👋👋

Seemed an utter waste considering how pristine the car was and everything functioned fine. Plus I'd recently spent £1.2k on four Michelin Crossclimates, cambelt, suspension work and a few other bits of refreshing.

I did get £1.5k salvage which helped make the decision easier. An additional £2k in parts and labour just didn't make sense.

Replaced 3yrs and 4 days ago with ...

A naturally aspirated petrol Civic. Cost far too much for what it was because of COVID inflated prices. It's been a solid reliable car as you might expect. Just boring.

Sorry. 😞

36,849 · January 10

1 hour ago, Crackers said:

...and make an instant £4000 loss.

As wince-inducing as it is to get it repaired, it's the only sensible option. Other than being a non-runner, there's nothing else this car needs right now.

Again similar as our A4. Literally was good to go apart from that.

However a working engine is very important for a car to be useful and this is an extremely major expensive fault. That glitter would have gone somewhere and next inline is the rail & injectors with zero filteration in-between.

Biggest off-put for me on having mine fix was the fact that you're replacing it with another CP4. Unless you're going brand new (mega expensive) or a fully trustworthy rebuilt pump (hard to know nowadays) then this can happen again. Maybe in a hundred thousand miles, maybe a few hundred miles.

If there is any swarf left in the system then it can be game over again with all that money you've put in gone into the bin.

Be careful to non fall into the sunk cost fallacy. These types of cars you need to be really brutal when you decide to twist or stick. £2k-4k repair costs with maybe £500 scrap would buy a lot of replacement car.
https://thedecisionlab.com/biases/the-sunk-cost-fallacy

7,323 · January 10

7 minutes ago, SiC said:

Be careful to non fall into the sunk cost fallacy. These types of cars you need to be really brutal when you decide to twist or stick. £2k-4k repair costs with maybe £500 scrap would buy a lot of replacement car.
https://thedecisionlab.com/biases/the-sunk-cost-fallacy

Oh I'm well aware. In the worst case, I think it's about even between repair or scrap. In the best case, repair saves me about £2000 over scrap. Of course it could fuck up immediately again, but the plan would be to repair it and sell it onwards as I'm quite enjoying this Fiesta I've bought and don't need 2 cars.

13,638 · January 10

53 minutes ago, Crackers said:

and don't need 2 cars.

U wot M9? 😀

January 11

13 hours ago, NorthernMonkey said:

The fuel filter needs to be carefully examined for any trace of metallic swarf.

If none is found, then hopefully it shouldn’t have contaminated the injectors and a replacement with one of those refurb units linked to above shouldn’t be too spiteful.

If sparkly bits are found, then it will unfortunately become significantly more expensive.

I recall that the filter was before the HP pump and therefore for any metal bits to be in it they would have gone through the pump, the injectors, leaked off and gone back to the tank, through the LP pump and the lines to the filter?

While the presence of metal here would indicate a failure I would be hesitant to use the lack of metal to confirm that everything else was fine.

If it were me I would take the pump off, strip it down and see what it was like to determine the exact cause of failure, if any swarf has entered the system then new injectors will almost certainly be required and getting swarf out of the rest of the system, the lines, tank etc. is absolutely critical.

A friend of mine had an X-Type diesel and had a HP fuel pump failure and the garage changed the pump and injectors and cleaned the lines but didn't do it right and a few weeks later it all had to be done again under warranty because metal swarf was still in the system.

1,615 · January 11

Wasn't the Jag still under the extended warranty thing? Either way shit situation all around

7,323 · January 11

3 hours ago, straightSix said:

Wasn't the Jag still under the extended warranty thing? Either way shit situation all around

Not any more.

Should have kept that up, shouldn't I.

Twat.

7,323 · January 11

6 hours ago, Homersimpson said:

I recall that the filter was before the HP pump and therefore for any metal bits to be in it they would have gone through the pump, the injectors, leaked off and gone back to the tank, through the LP pump and the lines to the filter?

While the presence of metal here would indicate a failure I would be hesitant to use the lack of metal to confirm that everything else was fine.

If it were me I would take the pump off, strip it down and see what it was like to determine the exact cause of failure, if any swarf has entered the system then new injectors will almost certainly be required and getting swarf out of the rest of the system, the lines, tank etc. is absolutely critical.

A friend of mine had an X-Type diesel and had a HP fuel pump failure and the garage changed the pump and injectors and cleaned the lines but didn't do it right and a few weeks later it all had to be done again under warranty because metal swarf was still in the system.

The main filter is pre-HP pump, yes. Not sure if there is another mesh filter on the output side of the HP pump which could be inspected for swarf, I can't see one on a parts diagram.

The more research I do, the more it looks like I'm about to make a £6k loss. Good.

36,849 · January 11

If you look in my pictures above, you can see the pressure control valve that I removed. I believe that's on the output side of the pump.

This is the XF diesel pump and has the same thing. Two pumps unlike mine because of more fuel to pump being a V6 Vs I4.

Under there is where to inspect for swarf. I imagine the garage has already looked there though and given the diagnosis.

36,849 · January 11

I see a lot of £4k and less 2010+ Jag XF 3.0 diesels with 70k-120k miles on the clock at dealers on Autotrader. No idea what you're in on this but I can't help but think you'd struggle to get your money back once going in deep repairing this. Especially if the repair fails again shortly after for various reasons as mentioned before.

Even though it doesn't feel like it, this is pretty much the biggest in terms of failures these age diesels can have. While the injection parts aren't exactly big looking items, it's all extremely expensive precision parts and collectively is pretty much the most expensive parts on it. So while the rest of all the big stuff maybe fine, you're definitely at the point of whether it's economically viable or not.

I know how you're feeling and the dilemma you have. It's exactly what I had with my A4. Yes over twice the mileage but that was a £4k car too around 3yrs ago during COVID.

January 11

If it were mine and I wanted to fix it I might consider buying one of the many XFs you see for sale with a knackered engine due to crank failure and either swap this engine into it or swap all the fuel system from the other one to this.

If I was planning to sell it anyway I would just cut my losses and sell it as it is.

18,819 · January 11

On 10/01/2025 at 19:48, wuvvum said:

Could you not get your friendly local @Talbot to put an xud in it? He knows his way around a Peugeot diesel engine...

17,063 · January 12

On 10/01/2025 at 19:48, wuvvum said:

Could you not get your friendly local @Talbot to have a look at it? He knows his way around a Peugeot diesel engine...

Not in this weather. Access to this pump look pretty rough, and I don't have any inside space.

Basically, stuff that!

5,148 · January 12

Havent checked which engine but looks a good service history - £650

https://www.facebook.com/share/1XP8GJYLiG/

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