1986 series 3 jaguar xj6 sovreign 4.2

1986 JAGUAR XJ6
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CHRISNZ
  • MEMBER
  • 1 POST
after a short run , engine is hot and water is evacuated from header tank overflow leaving it dry.
can you help.
thanks
Feb 26, 2007 at 10:29 AM
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JAMES W.
  • ASE Certified Mechanic
  • 2,394 POSTS
  • ASE Certified Mechanic
First suspect would be the thermostat.
I is the fan running, check relay or fuse.
With engine warm, and coolant tank full, do you see bubbles coming up in the tank? If yes, it could be a head gasket. If this problem has been going on for quite some time, possibly plugged radiator.
Oct 12, 2008 at 10:56 PM
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