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96 Caddy Deville: What temp does it overheat

Tiny
BIRDLADY710
  • MEMBER
  • 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 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 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
  • MECHANIC
  • 75,992 POSTS
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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