Question about Jaguar XJ8

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Jaguar XJ8 v8 4.0 cooling system

Please advise where I can locate the cooling system map for my Jaguar, I have become so frustrated with it that I have repaired most of the troubles with great success although I am running a little hot although my sensors are not telling me this it doesnt take a rocket scientist to feel the extreame heat coming from my eng. I would appreciate any help thank you Crystal

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  • Jaguar Master
  • 1,140 Answers

The most common problems with the aj26/27 engine cooling system problems 1 thermostat 2 waterpump 3 blocked radiator the cooling temp indicator on the dash defaults to norm unless ther is a serious overheat perhaps its ok as it is if no one has changed any hoses and put in the wrong way then check 1 first then 2 then 3 is the cooling fan coming in al lthe time?thermostat is favorite

Posted on Sep 10, 2017

  • FARROKH
    FARROKH Nov 29, 2017

    great answere

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 135 Answers

SOURCE: what causes the radiator fan

the relay is under theleft side of the front wing i think its green with 5 wires     

Posted on Jan 22, 2009

  • 1 Answer

SOURCE: overheating

yes change out thermostat first easy job 20 mins. that took care of my overheating problem.$15.oo part

Posted on May 27, 2009

  • 523 Answers

SOURCE: My 2001 Jaguar XJ8 seems to run rather hot;

I am not familiar with the light your speaking of (I am assuming a warning light for engine heat?) if she's running warm the thermostate may be failing or stuck in a partially closed/open position.

If the light is an Engine Check light then yes is may be as simple as a faulty fuel cap not holding presure within the tank. You'll note some cars when you open the cap there is a small "huff" of air as the cap is removed.
I hope this may have helped,
Tom

Posted on Sep 18, 2009

alicantecoli
  • 22484 Answers

SOURCE: 1999 Jaguar XJ8 Clock light

take dash apart and renew the bulbs

Posted on Jan 12, 2010

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1 Answer

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In the trunk (aka Luggage Compartment in England) life the panel to expose the spare tire. Fuse box should be on right side, near bumper. Take off top. Should be fuse 11. 10AMP accessory fuse. Check to confirm with diagram on lid. https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/339d1239001496-cigarette-lighter-fuse-1999-xj8-l-fuse-locations.jpg

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1999 Jaguar XJ8 Clock light


take dash apart and renew the bulbs

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Very noisy squeky fron suspension on jaguar xj8


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Where is fuel pump located


INSIDE THE FUEL TANK

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1 Answer

1998 jaguar xj8 overheating.


The early XJ8s were designed to operate as you describe, only kicking the fans in with the AC which is fine when the cars warming up (in fact it helps the car warm up faster & use less fuel), however, Jaguar realised in some climates this was causing overheating, later ones (99my on) operate constantly with the ignition on at slow speed & speed up if it detects it needs to.

This is a complex 2 relay system with alot of wiring that goes into the ECU & cant easily be retrofitted to your one.

I`d advise you to take the car to a good auto electrician & ask him to fit a manual switch on the dash with a relay to the fans so you can turn it on manually when its warmed up (if he can fit a slow speed relay with a resistor as well as a full power one, all the better, as you dont want to over cool either).

I`d also advise you to get the thermostat changed every year & the water pump to be upgraded to the current spec one, as these are both known issues that occur & also cause overheating.

Best of luck!

Aug 30, 2008 | 2006 Jaguar XJ8

1 Answer

Further instruction to your answer XJ8 Jaguar gearbox fault.


Hello,

I was experience in automotive mechanics, However if you need more consultation to some other expert, you can rate me "thanks for trying" so that your problems will be visible to some expert here:

else: consult the service center of your jaguar.

melnavz

Jul 13, 2008 | 1998 Jaguar XJ8L

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