2004 Impala heater

Tiny
DENNIS SPENCER
  • MEMBER
  • 2004 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • MANUAL
  • 85,000 MILES
2004 chevy impala heater will not heat up. Can this be a thermostst and if so where is it located?
Wednesday, December 29th, 2010 AT 12:29 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
If both heater hoses comming from the heater core are hot, the blend door is NOT moving, if the inlet hose is hot but outlet is cold, the heater core needs flushing, or replacement. If both hoses are cold, check antifreeze level and thermostat, also rarley but known to happen is the impeller blades on the water pump disolve over time and may not be pumping enough.
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Monday, February 21st, 2011 AT 7:58 PM

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