96 CADDY DEVILLE: WHAT TEMP DOES IT OVERHEAT

  • Tiny
  • birdlady710
  • 1996 Cadillac Deville
  • FWD
  • automatic
  • 118 miles

96 Caddy Deville: What temperature is the coolant when the car overheats? My car consistently runs at 231-235. If the car is running more than 45 minutes it can go into high 240's.

Monday, December 13th, 2010 AT 9:08 PM

2 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

That is too high. THe engine should stay between 195 and 210. I recommend having the thermostat replaced and flushing the cooling system. The factory thermostat opens fully at 195 degrees F.

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Monday, December 13th, 2010 AT 9:10 PM
  • Tiny
  • rasmataz
  • Member

If it goes beyond 220degs and not dropping at this temperature the cooling fan should be On-Check and test the thermostat and coolant temperature sensor-

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Monday, December 13th, 2010 AT 9:11 PM

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