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Heater on 1990 chevy blowing cold air - Cars & Trucks

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

hankfan18436
  • 62 Answers

SOURCE: 2000 Chevy Silverado 4X4 - Heater isn't blowing hot air

No your thermostat is stuck open which will not hurt the engine. but needs to be replaced, the thermostat is what allows the engine get up to operating temp. before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. so the heater never gets hot. I hope that helps you out.

Posted on Nov 24, 2008

dgjtex
  • 405 Answers

SOURCE: Heater wont work in my 1990 Chevy Truck

Several things can cause this (1) low coolant (2) bad coolant valve to heater core.(3) bad damper in duct.

Posted on Dec 27, 2008

  • 651 Answers

SOURCE: heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Posted on Jan 04, 2009

  • 5 Answers

SOURCE: 1996 chevy s10 heater not blowing hot air

heater core or leak on cooling system

Posted on Jan 06, 2009

  • 3 Answers

SOURCE: blowing cold air

I had the same problem that I just fix by flushing the heater core out with a hose.   take the two hoses off the fire wall and put the water to it and let flush.  my heater is putting out 150 dg. F  of hot air.   I'm so excited!  i will stay warm now.

Posted on Feb 27, 2009

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