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I wouldn't say the front, it seems more like the top ,,,it has the characteristic sound of the "ticking diesel" which injectors are sometimes known for
Are many people having to repair the timing tensioners quite often?
Its not yet at 60 000 miles it seems quite early for that
In all the reading that I have done on this issue 60K is not too early. The reason I have done a lot of reading is because I have a ticking in my 2013 Range Rover but it is at the back of the engine, likely a tappet, and my Rover VIN is outside the the Rover "bad" vin range and it should have the newer up dated tensioners.
I used that ticking to get a substantial deal on the Rover when I bought it from a Toyota dealer who actually phoned a Jaguar Dealer technician to confirm the issue in 2011 - 2013 Rovers.
In my opinion, you want someone who has experience with this to look at it. RR and Jag forums have tons of threads on it...but unless you have an educated and informed opinion - based on actual world experiences - it is difficult to explain and ingest what the difference is between DOHC ticking sounds and sounds indicating risk for catastrophic failure due to the tensioners. The level of consistency in the noise is usually a good first troubleshooting step
In all the reading that I have done on this issue 60K is not too early. The reason I have done a lot of reading is because I have a ticking in my 2013 Range Rover but it is at the back of the engine, likely a tappet, and my Rover VIN is outside the the Rover "bad" vin range and it should have the newer up dated tensioners.
I used that ticking to get a substantial deal on the Rover when I bought it from a Toyota dealer who actually phoned a Jaguar Dealer technician to confirm the issue in 2011 - 2013 Rovers.
that's the scary part of owning these cars, ive been a budget enthusiast who has done very well on cars , and part of me wants to take a risk but the other part of me doesn't
It seems like a very big job as well, these tensioners
Originally Posted by dmchao
In my opinion, you want someone who has experience with this to look at it. RR and Jag forums have tons of threads on it...but unless you have an educated and informed opinion - based on actual world experiences - it is difficult to explain and ingest what the difference is between DOHC ticking sounds and sounds indicating risk for catastrophic failure due to the tensioners. The level of consistency in the noise is usually a good first troubleshooting step
ell if it means anything the noises to not match the rev's, meaning they seem to be at a steady tick, even while the revs go up
I had the saleman go in the car and give it some gas while I stayed out and listened closely
I actually have a video here I just don't know how to upload it
If the noise does not match the revs and stays steady then it is possibly not the tensioners.
Like you I am a budget enthusiast and am taking a slight risk, I believe, with the ticking in my engine. I do intend to take the offending cylinder head off some time
in the future to see if it is a tappet.
I have the luxury of being retired and can take my time on such projects.
Could you please provide a link to the posts about the failing tensioners? I thought that was only for much older models (read early to mid 2000s) and that the plastic ones are no longer used. I was also told by the head of my local Jaguar club that the tensioners are a non-issue in the x351 model. Are you sure this issue still applies?
I understood the engine to be pretty bullet proof if regular maintenance is performed and you don’t drive it hot (is water pump failure). That is a major reason I jumped at the chance to own an x351 that was heavily depreciated. Thanks.
It affects RR cars from about 2011 to 2013 using the 5.0 V8 engine. There is a range of VINs that has been published for RRs but I do not know wht the vin range is for Jaguar 5.0 V8s.
What happens is that the mechanism that pushes on the tensioner, one either side so two, wears a hole where it contacts the tensioner. Later tensioners were made of harder material to prevent the problem.
It affects RR cars from about 2011 to 2013 using the 5.0 V8 engine. There is a range of VINs that has been published for RRs but I do not know wht the vin range is for Jaguar 5.0 V8s.
What happens is that the mechanism that pushes on the tensioner, one either side so two, wears a hole where it contacts the tensioner. Later tensioners were made of harder material to prevent the problem.
Thanks for the link. I am going to look into this as I have a 2010 5L S/C XJL. Not sure whether it is in the affected range or not. Sounds expensive to replace. Has anyone reported back on the cost of repair if needed? Thanks
I had my tensioners and guides replaced during my 6 year maintenance under the extended warranty I purchased through Jaguar. I need to point out that the new tensioners are controlled by oil pressure, a spring, and on the new units a ratchet. The list prices are the "dealer list prices" the discounted pricing is that allowed by the warranty company that is a cost plus amount. The labor hours was 16.2 hours but figure anywhere from 15 to 20. Assurant paid the entire $3822.38 which is more than I paid for the 100k 6 year policy!
Does anyone know the engine code for these 5 liters? Id like to do some research on them to see what other makes and models they are in, and the overall reliability
The 07-09 xkr v8s were apparently pretty bulletproof , I like to hope these are as good or better but im not sure
*****,
The engine code of the JLR 5.0 is AJ133, or in the supercharged versions AJ133SC.
It is a completely different engine to the 4.2 in the 07-09 XKR.
You can get a copy of the Technical Training doc from my Dropbox here which tells you quite a lot about this engine: https://www.dropbox.com/s/8y4iax9hm2...%20V8.pdf?dl=0
I don’t think I have any of these tensioner noises yet, but sounds like only a matter of time.
Based on this information 1willy1, I would not buy the 2012 unless it had this done already or if you get the warranty and get it done within the coverage period. 2013 models are not going to be anywhere close to your “steal” price, so the 40000km warrantee is probably the best deal you’ll find.
Well I have been on the forums a long time and yes we are seeing more 5.0L timing tensioner problems but I don't think it's a given. Now back on the old 4.0L V-8 yes. But even then there were many driven without problems. They are kind of the silent evidence. There has been discussion about the long oil drain intervals too. I know Bigg Will went to 2K changes since he got his car. He now has started a thread on his 100K XFR. He drives it hard and maintains it well. No evidence of any timing tension problems.
Take a look because he has pictures of the internals so you can see what 100K looks like.
Well I have been on the forums a long time and yes we are seeing more 5.0L timing tensioner problems but I don't think it's a given. Now back on the old 4.0L V-8 yes. But even then there were many driven without problems. They are kind of the silent evidence. There has been discussion about the long oil drain intervals too. I know Bigg Will went to 2K changes since he got his car. He now has started a thread on his 100K XFR. He drives it hard and maintains it well. No evidence of any timing tension problems.
Take a look because he has pictures of the internals so you can see what 100K looks like.
Thanks for pointing out his thread. I’ll probably use his oil recommendation as I’ve been paying for the unicorn blood thus far. But I have owned all my cars to ~200,000 (with the engines still perfectly intact, this one is only at ~82000), so I will probably have to face the music on the tensioners sooner or later. I would love to prove that an original Jaguar engine can make it that far.
BTW, if Jaguar USA ever wants to sponsor a forever owner, I’d be happy to volunteer. I have one of the earliest X351s in America (shipped to the states in 2009).
02-21-2019, 01:06 PM
on either the front or the back! boooo.
