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Jaguar XJ-Series



  • euphoniumeuphonium Great Northwest, West of the Cascades.Posts: 3,425
    Visit the nearest Radio Shack.
  • euphoniumeuphonium Great Northwest, West of the Cascades.Posts: 3,425
    If you don't like rattles in the trunk area, why would you provide rattles under the hood by using inferior fuel? ;)
  • gregg_vwgregg_vw Posts: 2,437
    It won't "rattle" and it is not inferior fuel. Regular grade is lower octane and therefore takes less energy to ignite. On older cars which required higher octane, you would get knock (and possibly serious damage) with the pre-ignition of lower octane. Current engines adjust to the octane they are fed. Those that are set up to use premium obtain their hp and mpg ratings using it. Use a lower octane and you will likely have less hp and slightly less mpg. That is the main reason it makes little sense to use it. You see no savings, and you have less power (which protects the engine from pre-ignition).

    Supercharged engines are an exception, as the electronics may not be able to adequately adjust to an octane change under more extreme conditions.

    On the other hand, most cars that take regular fuel are not set up to gain hp from using premium. Using premium when your vehicle calls for regular may net you less mpg, rendering premium the "inferior" fuel in that case.
  • euphoniumeuphonium Great Northwest, West of the Cascades.Posts: 3,425
    95 Thunderbird 4.6 V8 111000 miles

    94 Lincoln Twn Car 4.6 141000 miles

    Each runs better and quieter using Mid Grade or 89 Octane. My source for fuel does not inclue Ethenal either.
  • gregg_vwgregg_vw Posts: 2,437
    They probably do. Early 90s engines weren't as efficient at adjusting to octane changes.

    You are fortunate BTW because here in WI it seems that all mid-grade gas has ethanol in it. Consequently, I avoid mid-grade.
  • bhill2bhill2 Posts: 1,778
    You are undoubtedly correct that the engine will not be damaged by using regular fuel. But as hofiii noted, Jaguar says that premium fuel is 'required' which, in my mind, means that if you use regular you deserve what you get. Like hofiii, I go with premium; it is a Jag after all.

    2009 BMW 335i, 2003 Corvette cnv, 2001 Jaguar XK cnv, 1985 MB 380SE (the best of the lot)

  • gregg_vwgregg_vw Posts: 2,437
    Agreed. Why would anyone want to put regular in it? It is just good to know that if you have to use it for some reason, based on lack of available premium, fueling up along the side of the road, etc., you can do it without harming your Jag.
  • m4d_cowm4d_cow Posts: 1,491
    Can anyone tell me how much should I spend on an 06 CPO XJR? A dealer's listing it for "special price" $31060. Great deal or theres room for negotiation?
    Any significant problems w/ this model year I should be aware of?
  • gregg_vwgregg_vw Posts: 2,437
    Room for negotiation, but at least its a realistic start. Newer XJs have very good reliability.
  • m4d_cowm4d_cow Posts: 1,491
    Thanks gregg, can you tell me how much lower should I bargain for? I'm a bit confused as even Edmunds site quote it for almost 40k...
  • euphoniumeuphonium Great Northwest, West of the Cascades.Posts: 3,425
    Where in the country is the economy that enables the best deal on used 05 XJ8 L's with less than 25k miles?

    There are two listed with same color, equipment, and miles. One in TX, the other in Southern CA. There is a $4,000 difference in the advertised price. The SC is $26,900 and the TX is $22,900. This is just one example of area differences.

    So, who is offering the best prices, where? Thank you for your input.
  • Texas cars direct, or now WILL NOT show you these reports, they claim they don't even exist!! I'VE SEEN THEM!!!! They take the dogs from the auction, and slick them up in their body shop and dump them- what you see is what you get- fresh paint and bondo.

    Having been through every inch of Texas Cars Directs entire operation in excruciating detail, (I mean EVERY inch) I can tell you emphatically that you are wrong and honestly, you either don't know what you're talking about or your simply trying to spread untruths.

    1) they don't have a body shop of any kind.
    2) I've seen the cars they buy immediately after coming back from auction, they are NOT "dogs."

    And no, I've never bought a car from them, so I'm not posting this to alleviate some cognitive dissonance. You're simply not telling the truth. Sorry.
  • On my 2001 XJ8 the upper bushings on both my front shock absorbers are falling apart and the bellows have fallen down. Are these bushings easy to change with out having to go to the dealer? How come I do not see bushings for front absorbers listed on any Jaguar parts sites? The only bushings listed are for rear shocks. Are there any other bushings located on the underside? I do not notice a difference in ride quality but at 10 to 25 mph one can hear the a dull rattling.
  • annovannov Posts: 2
    Hi Allojohn,

    I have the same problem with my Jaguar XJ 2001 trac not availalbe comes up, initially it was once in a blue moon but now it starts to come more often.
    It starts to happen now as well when i am driving, the engine goes in failsafe mode.
    When I restart the car a few times it solves the problem.

    Can you tell me what the problem is?
  • annovannov Posts: 2
    Hi Jefk,

    I have the same problem with my Jaguar XJ 2001. Initially the 'trac not available' error came once in a blue moon when i started the car but no it's getting more frequent, even when i drive slow in traffic jams.
    Assuming that your problem is fixed, what eventually solved it?
  • denhamdenham Posts: 76
    Note: I have had this same problem and changed the Spark Plugs and for the last year
    have had no more problem. This problem just about drove me mad as it had new plugs
    and yet this being the problem. I would be driving and this light would come on and I would only hope in making it home and fear of going any distance.
  • rod1rod1 Posts: 1
    This is ongoing problem. Only 36 k.mi. last year,went to dealer,they said it needed a fuel pump, they obviously did not know what to do. I never saw a Jaguar service manager who knew less than I did about Jaguars.Dropped them found a good mechanic,he is trying I am trying to help him. Perfect example, day before xmas. My wife is at home depot. comes out car is dead. Did not call me,she waited, after almost two hours went back in car,it started. This has happened about 12 times in the last year. Mechanic has changed lots of relays thru out the car the last one was in the trunk. We thought we had it. Three weeks. It sits at our house. Mechanic is making calls every where, looking for an answer. Anyone have any ides? Thanks Rod
  • I feel your pain and agree.
  • allojohnallojohn Posts: 6
    Sorry for taking so long to reply, I haven't been here for a while. I fixed my problem by removing and sending the ABS unit to BBA remanufacturing in Taunton, MA. It cost about $150 and I have had no problem since. There is a known fault with the unit and these guys fix loads for all sorts of different cars. I found them on ebay would you believe. Check them out at or call (866) 573-2740
    Good luck!
  • bpeterbpeter Posts: 1
    I would like to read the reply to #1666 regarding potential xjs owners. How?
  • patpat Posts: 10,421
    I don't see a reply to it (other than yours now). Since that question was posted in 2003, I'm not sure a reply would be very helpful now anyway.

    Feel free to post your own questions, though!
  • eman5eman5 Posts: 110
    I've been looking at 06-07 VDPs. Their Carfax reports almost always mention service reports early on that say, cryptically, "Computer reprogrammed" or "Computer reset." What's up with that? Is that a specific issue, covered under warranty?

    Also, their A/C coolant gets recharged after a year?

    I've read that Jaguars are more reliable now. Is that true, or advertising? Dare I return, after swearing them off a decade ago?
  • denhamdenham Posts: 76
    I own my second Jag. and they have been more of a Sunday car and I have never had any major problems. One thing of importance is changing the brake fluid and is most often over looked. If it is a used Jag. I would find the owner, and if it were a Doctor or
    Lawyer I would back off or do some checking as few seem to have the time for proper upkeep .
  • k2usak2usa Posts: 5
    Yes, I got a recall notice ('04 xjr) just last month. So they are covering it even if outr of warranty (105,000 miles- NO problems!) I would confirm that the quality is much better. 04 and newer benifited from the multi billion investment of Ford. My dad was a Jag/MG dealer in the 70's so I know well the quality issues of the past. Not so any more, I fully expect 200K + before my next jag. :)
  • sjb68sjb68 Posts: 1
    I'm thinking about purchasing a 99 XJ8L with 70,000 miles on it. I took it for a test drive and noticed that sometimes the tranny would act like it was stuck in neutral then slam into gear when starting from a dead stop. The dealer had it checked and said that it was not a transmission problem because it was not throwing any codes out and said sometimes these things work themselves out or get worse. Any ideas?
  • When I try to run the diagnostics through the on-board VCM, it flashes "PAO FAIL". Anyone with a clue as to what this means? Thanks, Alan
  • madonnadjmadonnadj Posts: 11
    We have a 98 and it did something similar. We were stopped, placed in reverse and then going forward it seized up. Placed in reverse, nothing moved. Eventually, it 'released' if that is that correct word. Our mechanic came, drove it around and said it was fine to drive. Had no real idea except to say sometimes the anti-lock brakes seize up...on any car. Wasn't concerned. As we have a warranty, I want it to 'break' so that it can be fixed. No one except for me is concerned about being away from home in it!! Has shown no further indication that it is trying to do it again.
  • madonnadjmadonnadj Posts: 11
    At approximately every 20 miles, bells, chimes go off five times in increments of five. The book states that this is a secondary warning for air bags when the light on the dash does reflecting same warning fails. Jag dealer doesn't know what I am talking about. Anyone have this problem? If so, any info would be helpful.

  • marsha7marsha7 Posts: 3,703
    XJ8, I notice that the parking brake is no longer a hand brake...I love handbrakes ( my 88 Prelude & Legend had them)...when was the last year that the XJ8 had the hand brake???
  • gas6gas6 Posts: 3
    Had something similar on my 2004 xj8 it was very intermittent and was found to be a fault in the cancelation ring - this device transmits the electical power from the (fixed) car to the (rotating) steering wheel, and the wires tend to fail after much use. All fine now. hope this helps
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