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my jag idling a bit high


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I have notice that when I went to Brighton I stopped at the lights and my car was idling a bit high just on the 1000 rev mark I turned it off and started it up again it was fine drove 70 feet down the road and back to idling high anyone have any suggestions

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Been with mine 35 years, haven't got the slightest idea when the anniversary is though.


Don't go in for that sort of stuff .


Did take her here for what I thought was her 25th, but got the year wrong, it was only 24 (but seemed longer).


This would be a good place for a meet, Aston Martin had theirs there







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Hi robert you didn't say if its diesel or petrol if it was OK and it just started fast idle  I would say its

developed a air-leak on the induction side somewhere.?????


Check all your pipes etc



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I have been out all afternoon on Grandparent duty,


I think the reason for the higher idling speed has been said.  A bit more fuel getting to the engine, and that says an injector.




PS.  I have been married now for almost 48 years.  My wife would say "I don't like it doing something funny like that.  Fix it or I will get a proper man in."

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Hi Robert here's something I found that could help.???


2005 Jaguar X-Type 2.0d - Jaguar diesel idling high, especially when driving -

My Jag  has a frustrating and dangerous problem.

The idle speed increases when the car is in motion, getting up to 1500 rpm - which when in 5th means acceleration
with no input from me!

With the cluth depressed it drops to about 1000, and when the car actually is stopped returns to the correct 800
(with occassional surging)

I have had the local garage hook it up to diagnostics but the car is clean with no codes at all.

I cleaned the EGR valve myself and that made no difference. I would say the problem is worsening.

Could this be a sensor?

Check your engine Oil level isn't above the high mark. If ok, I would check the turbo Oil seals arn't passing excessive Oil.

Unplugged the MAF last night - no change :

Does that not tell you something.It could be that the MAF is faulty or that the wiring to it or the plug is faulty all three
 common problems on this engine.Having a faulty non operative MAF will give exactly the problems you describe.


Then have a look at this????





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Thanks for all reply as I bought it from ford 8 took it back there they said it was a injector that was not working but they can't do any thing as it is a jaguar so I booked it in with jag so hopefully will be all sorted .... I have waited 7 years to finally say I own a jaguar and even with the problem I am having I still love the Car

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  • 1 month later...

I find that my x-type diesel idles about 1000rpm when cold but then settles and 750rpm.

When I first set off it will tick over at 1000rpm as I coast to a stop (clutch down) and then when I come to a complete stop it drops to 750rpm.

I find it odd that the idle would change between coasting at 2mph and then drop when the car fully stops.

Doesn't bother me really, just curious! Is it normal?

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