Engine died at 70MPH, won't start - Page 2

Thanks FJT, I was wondering if gen 3 secondary tensioners would eventually start showing up as "destructable". I was still thinking of using 50K miles as a recommended replacement interval. Overkill, or prudent insurance?

I would say if the customer is planning on keeping the car, do the tensioners and probably the secondary chain too. However, this car had its own issues different from the average cat.
We will see.....we are a big dealer and I think total we have seen 5 tensioner failures and 3 4.2 engine failures. Pretty good going considering 4.2 has been out now 5 years.

Thanks for that, I can't get that sort of up to date information anywhere else. Sometimes I start to feel like Gilligan, stranded on "Independant's Island".

LOL. I help out the independant guys down here alot. One day they will be able to help me with something I am sure. We are all in the same game, just paid by a different company.

i miss a good old tear down like that..  still havent had a 4.2 tensioner failure up here. there running gggggreat

I wonder if again.....it is climate related?

keeps us employed lol

How can something like this be prevented?
 
Would synthetic oil be better than conventional?

Get a load of this ... Ford ESP, the extended warranty company, is denying the claim because they believe that selling dealer falsified the warranty paperwork and/or didn't process it properly.  And now everyone is pointing the finger at each other and the car is collecting dust.

sounds like a load all right.. ford is usually good with there ESP. i wud say it's the dealers fault.. id get on there ass.

Indeed. I would take the estimate to the selling dealer and tell them they are going to eat it. Not your fault. If dealer truly falsified documents or didn't file it, they are liable either way. Make sure you keep all paperwork adn only give selling dealer copies. 

keep us posted

Well, here's the latest. 
 
After draining the oil and dropping the oil pan the Jag dealer has determined the engine is beyond repair.  They've provided an estimate to replace it for $12,250 with a Jaguar reman engine.
 
The selling dealer is begging and pleading with Ford to accept the corrected paperwork and honor the claim.  They "swear" they will get it done.  I have little confidence they will.  The paperwork is pretty messed up and they've now given Ford 3 different mileage readings for the car which has only complicated it more.
 
So unfortunately I've got a call into my attorney to see if he can't straighten it out.
 
In the meantime the Jag dealer wants his lift back so I need to quickly decide if I want to pay them to partially put it back together and push it outside until this mess is straightened out or bite the bullet and have them start on it prior to determining how/who is paying for the repair.  I owed them an answer yesterday.

Too bad if they wantthe lift back. Have them just roll it outside. Do not pay anything at this time. Have them call the selling dealer and get authorization to do whatever needs to be done. Worst case they will have to pay and get reimbursed. It is not your responsability to pay. The selling dealer was in error. Worst case tell selling dealer to tow it back to there place and give you another car.

or get all your money back..  i wud tell them to eat it.

Well it looks like the situation may finally be resolved. 
 
A key person at the dealer came back from vacation, spoke with the people at Ford ESP, explained how he botched the original paperwork and got them to agree to accept the correct paperwork and put the warranty into effect.  Part of the process was that he needed to prove that the car was properly inspected prior to writing up the warranty contract and didn't have any pre-existing conditions which he was able to do.
 
Should be in their system today allowing the dealer to move forward with the repair.
 
Fingers crossed.

Good luck. Keep us posted.

Finally good to go.  Warranty issue was straightened out and Ford ESP approved the engine replacement.  They are going to drop a remanufactured engine in.  I should have the car back in a week and a half.

Nice. Those engines come out easy. Once the engine gets there it should take a day. Make sure they do an overnight road test prior to you picking it up. That way, any further issues will be fixed before you pick it up.

And we're done!  Just got the car back.  Seems like the dealer did a great job.  I was out of pocket only $100 for a new motor and water pump.
 
Despite the initial paperwork glitches the Ford ESP warranty covered everything.  The dealer was very pleased with their service and what they covered.

excellent .. i have always heard good things from the ford esp plan.. glad it turned out good. $100 good deal lol

glad to hear it all worked out.

I bought a 2004 XJ8 in the UK last week and suffered a similar problem after just one day's ownership.
Fortunately, I was stopped at a red traffic light when my engine 'failed'. It gave a strange sort of shudder and stopped responding to the throttle control - but the engine was still running. There was just suffiient response for me to 'limp' off the road onto the verge before is stopped responding altogether (but the engine was still running sweetly)!
The fault was diagnosed as a P1111, which I understand points to a 'throttle pot (potentiometer) failure'.
No more cable/linkage to the carburettor - it's all 'fly-by-wire', so I understand the pot acts a bit like a radio knob - press the accelerator pedal and the pot turns the speed up.
 
I am told by my local Jaguar dealership that they cannot change the pot alone; they'll have to change the whole throttle control box @ £747.30GBP [$1471.07]!

p1111 isnt for throttl pot... it's a readiness code..  and that price seems right..

Re: engine (throttle pot) failure.
Thanks; the other code listed was a P2135, so I suppose this is the correct throttle pot code?
Thanks as well for your advice re costing. The only problem now is sourcing a replacement! The dealership says they're on 'back-order' with their stores and they're having difficulty locating one through other dealerships. Any ideas re supply chain for official Jaguar parts in UK?
Roy