Question about 2001 Jaguar XJ8

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Why does my Engine coolant low engine light come on when the coolant is full? My Jag is a 2001 XJ8

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The sensor swicth is just a switch could be grounded (short)

Posted on May 03, 2010

  • pittwater140 Sep 28, 2010

    Im replacing a coolant level switch at the moment. If you unplug the switch, bridge the two terminals in the plug you took off and the warning light doesn't come on after a restart, you know you have a faulty switch.

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Your thermostat may need replacement - they need changing every 2 years. Here is a link http://www.jagservice.net/jaguar_v8_secondary_tensioners.htm

Desmond

Posted on May 12, 2010

  • singletonjon May 14, 2010

    your thermastat has nothing too do with low coolant levels it keeps coolant in the engine until it reaches operating tempature if your coolant is low there is a leak either out or inside the engine if theres no leak and the light stays on the circuit could be grounded

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2000 Jaguar xj8 turn over won't start stability control fail light on.


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Also replace the plastic water pump and thermostat with alloy units.

Sorry for this bad news. I own a 2001 XJR and it is a fabulous car. It's still a Jaguar, though, and you're going to have to put a few thousand into it. Since these cars are selling for next to nothing on the used market ($12,000 for 80,000 miles), I consider preventive maintenance of $5,000 or so to be part of the investment in a world-class sedan.

Dec 31, 2008 | 2001 Jaguar XJ8

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If it does need tensioners, get the later metal type ones fitted.

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