2011 XFR - suspected dead engine
Discussion
ali_XFR said:
Engine out of the car and they've found the timing chain has stretched. Valve damage is worst on cylinder 2 but the warranty co are talking to Jag to determine best course of action. Finally got a courtesy car after moaning to Jaguar on twitter about the atrocious lack of service and general can't be arsed attitude from the dealership. They've assigned someone on their end to coordinate between them, the warranty folk and the dealers.
A word of warning from my experience - if the warranty company suddenly decide that its not a warranty issue - maybe it was low on oil or not serviced properly for example - then you will be liable for a daily hire charge for the loan car. And they charge a very high rate. I learned the hard way that once the dealer has your money for a second hand Jag then no one gives a stuff about you. Its a shame as my XJR is coming up for replacement but I wont be getting another Jag.
That is concerning!
Aren't chain tensioners supposed to adjust to slight stretching?..in which case the tensioner that was at fault.
Not sure when/if tensioners are supposed to be inspected/replaced?
I don't think the chains themselves are supposed to need renewing until a ridiculous amount of mileage
Aren't chain tensioners supposed to adjust to slight stretching?..in which case the tensioner that was at fault.
Not sure when/if tensioners are supposed to be inspected/replaced?
I don't think the chains themselves are supposed to need renewing until a ridiculous amount of mileage
i did stumble across a few posts relating to tensioner problems for both 4.0 and 5.0 engines.
From what i can see, generally if the tensioner is 'iffy' on a 5.0 the warning sign is the chain starts to rattle on startup before oil pressure rises.
Is this a weak spot for XFRs or a rare case? Having a 2011 XFR with 32k on clock i have to ask.
From what i can see, generally if the tensioner is 'iffy' on a 5.0 the warning sign is the chain starts to rattle on startup before oil pressure rises.
Is this a weak spot for XFRs or a rare case? Having a 2011 XFR with 32k on clock i have to ask.
Simpo Two said:
verynicechap said:
i did stumble across a few posts relating to tensioner problems for both 4.0 and 5.0 engines.
I find it incredible that they can pack a car with state of the art computers, software and blue LEDs - but f
k up a spring and a bit of metal.I too will be interested to hear what went wrong, there's a long history of problems on the 4.0 engine, but this is the first I've heard of people suggesting there's a problem on the 5.0 engine. They were also saying that it was an issue with the chain rather than with the tensioner.
Simpo Two said:
verynicechap said:
i did stumble across a few posts relating to tensioner problems for both 4.0 and 5.0 engines.
I find it incredible that they can pack a car with state of the art computers, software and blue LEDs - but fk up a spring and a bit of metal.Also watching thread with interest after recently purchasing a 2012 XFR, 31k miles. I bought a bit more car for my money from a respected indy vs approved but I don't have the approved warranty. I was happy enough to do this with a few grand in the slush fund combined with the generally very good reputation from a reliability POV but a lunched engine puts the heebeejeebeez up me if this is anything but a very rare occurrence.
Jaroon said:
Also watching thread with interest after recently purchasing a 2012 XFR, 31k miles. I bought a bit more car for my money from a respected indy vs approved but I don't have the approved warranty. I was happy enough to do this with a few grand in the slush fund combined with the generally very good reputation from a reliability POV but a lunched engine puts the heebeejeebeez up me if this is anything but a very rare occurrence.
For goodness sake. It's one engine. We have no history of it and how well it's been treated. There's also no cause of the failure. Until then enjoy your XFR, and once a cause emerges then make sure you avoid that cause, whatever it may be. The 5.0 is a robust engine. They better be I've 2 5.0 S/C engined cars now! 
Seriously though, these engines have always been bullet proof, even the 4.0 litre only suffered from the early tensioners and the nykasi for a few year up to 2000
Since 2000 or so onward all the versions of these engines have been pretty well indestructible, which is why I've not worried about having two of them.
If yours has let go it's going to be something unique to your particular engine, not an endemic issue.
Seriously though, these engines have always been bullet proof, even the 4.0 litre only suffered from the early tensioners and the nykasi for a few year up to 2000
Since 2000 or so onward all the versions of these engines have been pretty well indestructible, which is why I've not worried about having two of them.
If yours has let go it's going to be something unique to your particular engine, not an endemic issue.
Shoegrip said:
fatboy b said:
So it might not be timing chain related.
I wonder if Jaguar will issue a recall?
I feel sorry for the OP, really, I do - but it's the first borked Gen III AJ-V8 I've ever heard of, and the engine is in widespread use in XFs, XKs, XJs, F-Types and numerous Range Rovers. Let's not get hysterical about it.
jamieduff1981 said:
I feel sorry for the OP, really, I do - but it's the first borked Gen III AJ-V8 I've ever heard of, and the engine is in widespread use in XFs, XKs, XJs, F-Types and numerous Range Rovers.
I feel sorry for the OP too and look forward to a successful resolution.It would be reasuring if a good technical explanation was made available.
jamieduff1981 said:
Only if this is deemed to be anything other than a freak incident, which could be predicted to affect numerous engines.
I feel sorry for the OP, really, I do - but it's the first borked Gen III AJ-V8 I've ever heard of, and the engine is in widespread use in XFs, XKs, XJs, F-Types and numerous Range Rovers. Let's not get hysterical about it.
Whoosh. I feel sorry for the OP, really, I do - but it's the first borked Gen III AJ-V8 I've ever heard of, and the engine is in widespread use in XFs, XKs, XJs, F-Types and numerous Range Rovers. Let's not get hysterical about it.
Unless of course you're double whoosh parroting!
There have been a couple of cases of lunched 5.0 S/C V8 engines in XKRs on jaguarforum.com which Jaguar themselves have attributed to incorrect spec of oil being used - I'm not totally clear on the details but could be oil-driven tensioners failing. The US Jaguar forum has one or two cases similar.
Not endemic by any means but I would make sure and use a Jaguar-approved oil if I had such a car, particularly if I still had original or approved-used warranty.
Not endemic by any means but I would make sure and use a Jaguar-approved oil if I had such a car, particularly if I still had original or approved-used warranty.
Woah didn't realise I'd sparked such debate. This weeks update is that the dealership and warranty co have been rifling through my car and found two print outs from a rolling road showing WHP of 466ish bhp and an estimate of flywheel BHP of 590ish bhp and are now convinced my engine has had a remap.
Except it hasn't. Not during my ownership.
Putting it on a rolling road does not invalidate the warranty. They are convinced the two print outs show a before and after bhp level and are evidence of it being remapped. I am absolutely apoplectic with rage. The dealership kindly waited til 4.55 to notify me of the warranty company's conclusion and I now have to wait til Monday morning before I can speak to someone. This is turning into an absolute nightmare.
Except it hasn't. Not during my ownership.
Putting it on a rolling road does not invalidate the warranty. They are convinced the two print outs show a before and after bhp level and are evidence of it being remapped. I am absolutely apoplectic with rage. The dealership kindly waited til 4.55 to notify me of the warranty company's conclusion and I now have to wait til Monday morning before I can speak to someone. This is turning into an absolute nightmare.
ali_XFR said:
Woah didn't realise I'd sparked such debate. This weeks update is that the dealership and warranty co have been rifling through my car and found two print outs from a rolling road showing WHP of 466ish bhp and an estimate of flywheel BHP of 590ish bhp and are now convinced my engine has had a remap.
Except it hasn't. Not during my ownership.
Putting it on a rolling road does not invalidate the warranty. They are convinced the two print outs show a before and after bhp level and are evidence of it being remapped. I am absolutely apoplectic with rage. The dealership kindly waited til 4.55 to notify me of the warranty company's conclusion and I now have to wait til Monday morning before I can speak to someone. This is turning into an absolute nightmare.
oh gawd no! Except it hasn't. Not during my ownership.
Putting it on a rolling road does not invalidate the warranty. They are convinced the two print outs show a before and after bhp level and are evidence of it being remapped. I am absolutely apoplectic with rage. The dealership kindly waited til 4.55 to notify me of the warranty company's conclusion and I now have to wait til Monday morning before I can speak to someone. This is turning into an absolute nightmare.
..Its a typical sort of output you'd expect on a DynoDynamics roller for a remapped XFR with exhaust, filters and pulley done. That is where they are coming from unfortunately.
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