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Thread: XJ6 X300 temperature guage

  1. #1
    Junior Member
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    XJ6 X300 temperature guage

    I have just purchased the car. On my first long drive (engine fully warm) I noticed the temperature guage would suddenly drop from normal to cold then gradually move back up to normal then drop again. Any ideas what could be going on here?

  2. #2
    Senior Member Jimbov8's Avatar
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    Welcome to the forum Scott. Check the connector and associated wiring from the sensor back to the ECU first. Also check the engine ground points.
    Jim.
    2012 XKR Black pack, Speed Pack, Aero pack, Rat pack. Past:-87'XJS 3.6L, 93'XJ40 3.2L gold, 95'XJ6 4.0L sport, 00'XJ8 3.2L sport, 2005 XK8 4.2L coupe, 2009 XK 5.0L Portfolio in that order and enjoyed all of 'em.

    I do not offer advice, I only say what I would do with the set of circumstances presented. Your choice always.

  3. #3
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    Thanks. Good advice to check the simple things first!

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