1998 Jaguar XJR car is running hot

Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1998 JAGUAR CHEROKEE
  • 125,000 MILES
1998 Jaguar XJR. My car is running hot only when driven not at idle. I have changed the thermostat, someone had put a 170 and drilled three holes in it, for what I don't know. I put the correct one in and it still ran hot. I checked the water pump and it was okay. I'm not sure were to turn from here. Please help!
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Tuesday, November 9th, 2010 AT 11:33 PM

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Tiny
2CARPROS-ARCHIVES
  • MEMBER
Check for a failed head gasket.
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Tuesday, November 9th, 2010 AT 11:35 PM

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