Why does my temperature gauge keep getting high?

2000 CHEVROLET BLAZER
132,400 MILES
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FNAMAN
  • MEMBER
  • 1 POST
I've already changed the thermostat, did a radiator cleanse. When the heater is on high the temperature goes up even more. The heater has not been working for about a year now. So I know something is wrong cause the heater will blowout really hot air when temperature gauge starts to go.
Apr 4, 2012 at 9:22 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
What about your thermal clutch is that working like it should?
Apr 4, 2012 at 9:31 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
Thermal fan clutch iam talking about that.
Apr 4, 2012 at 9:32 PM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
Have you made shore there is no air in the system ?
Apr 4, 2012 at 10:30 PM
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