2006 Chevy Malibu Heater

Tiny
NOVICE MECH2
  • MEMBER
  • 2006 CHEVROLET MALIBU
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 36,000 MILES
My heater only puts out warm air even though the engine is hot. Is this the thermostat or something else?
Monday, August 31st, 2009 AT 12:47 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,854 POSTS
I need you to check something. With the engine warmed up and the heater on high, feel both heater hoses under the hood. They should both be hot. Let me know what you find.

Joe

PS: If the car isn't overheating and it warms up normally, the t-stat should be fine.
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Sunday, September 6th, 2009 AT 11:25 PM
Tiny
CAPITALPYRO
  • MEMBER
  • 2 POSTS
I have the same problem. 2006 malibu with 3.5l. AC work great. All settings for air direction work. No heat coming out. Both heater hoses are very hot. Temp gauge in middle as it always has been.

One thing I noticesd is that I can remove the filler cap and there is no pressure. I AM NOT losing fluid and it is full. All fuses are good. Ideas or instructions? Thanks
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Monday, September 7th, 2009 AT 3:19 PM
Tiny
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  • MECHANIC
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I would start by checking the blender door. It is located near the heater core. If it doesn't open, no heat can enter the vehicle.
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Monday, September 7th, 2009 AT 3:25 PM
Tiny
CAPITALPYRO
  • MEMBER
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Any information as to how to access this on a 06 Maxx?
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Tuesday, September 8th, 2009 AT 6:56 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,854 POSTS
Check under the hood on the firewall. I believe the HVAC box is on the passanger side. Also, if you follow the heater hoses, they will lead to the heater core.
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Tuesday, September 8th, 2009 AT 7:55 AM

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