2006 Chevy Impala Only warm air when accelarating

Tiny
JIM MORRIS
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 67,000 MILES
My son has the Implala and when he has the heater on if will blow out warm/hot air when accelarating but when idoling it will blow out cold air.
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Wednesday, December 30th, 2009 AT 7:44 PM

1 Reply

Tiny
TAKECHARGESARGE
  • MEMBER
Hi Jim,

Sounds like the heater core may be clogged. Check the warmth/lack of warmth of the heater inlet and outlet hoses close to the firewall connections. If the core is clogged, the outlet will be much cooler than the inlet. If it is clogged, have it backflushed to knock the debris out of the core tubes. If it is not clogged, try installing a 195 degree thermostat.

TakeChargeSarge
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Saturday, January 2nd, 2010 AT 9:58 PM

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