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2005 Chevy Impala HEATER CORE OR BLOWER MOTOR RESISTOR

Tiny
PRICAN83
  • MEMBER
  • 2005 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
MY CAR WHEN YOU TURN THE HEATER ON IT BLOWS COLD AIR WHEN THE HEATERS ON. THEN IT OVER HEATS. WHEM=N IT STARTS TO COOL DOWN THEN THE CAR STARTS BLOWING HOT AIR. WHAt do you think IT COULD BE? WE WERE TOLD IT WAS THE HEATER CORE OR THE BLOWER MOTOR RESISTOR.
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Tuesday, March 16th, 2010 AT 9:02 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Replace the thermostat if its the blower motor resistor I don't think it'd blow anything and also the heater if its clogged up-its not gonna come on and off
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Sunday, October 21st, 2018 AT 6:28 PM
Tiny
PRICAN83
  • MEMBER
  • 2 POSTS
Do you think that it could be the coolant sensor?
Do think it could be the water pump?
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Sunday, October 21st, 2018 AT 6:28 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The coolant temperature sensor if its defective will not turn on the electric radiator fan if that's what you have and cause the egnine to overheat same as the water pump.

Check the thermostat
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Sunday, October 21st, 2018 AT 6:28 PM

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