2007 Impala 3.5 no heat

DAN010486

MEMBER
2007 CHEVROLET ASTRO
3.5L
6 CYL
2WD
AUTOMATIC
70,000 MILES

Hello I have a 2007 Impala with the 3.5. The other day my heat was going in and out and now it has completely gone out I have no heat at all but the cars temp will stay normal and not overheat. Both radiator hoses are hot and both heater hoses are hot as well I'm at a loss

11 Replies

HMAC300

MECHANIC
48,601 POSTS

Try pulling the hvac fuse inside car it may reset the actuator otherwise the actuator may be bad which you would need to check for power there. There are two one for lh and rh. Rh pictured. If no power scan for codes.

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Saturday, January 9th, 2016 AT 4:10 PM

DAN010486

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8 POSTS

You were correct it was the rh air actuator. Thank you so much

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Saturday, January 9th, 2016 AT 4:50 PM

DAN010486

MEMBER
8 POSTS

Hello HMAC300. Ok I'm not getting full heat. When I installed the new actuator I had to manually adjust the door or the actuator would slide on l I don't know if the door is fully opening or what. Do I need to reprogram the actuator or reset it or what? Thank you

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Monday, January 11th, 2016 AT 5:09 PM

DAN010486

MEMBER
8 POSTS

Forgot to add this is a single zone so there is only 1 actuator

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Monday, January 11th, 2016 AT 5:13 PM

HMAC300

MECHANIC
48,601 POSTS

Check to see if door is broken it may not be working right, take the actuator off to do this.

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Tuesday, January 12th, 2016 AT 6:11 AM

DAN010486

MEMBER
8 POSTS

When the actuator is off the door turns with some force so it doesn't seem like it's broken. I've read some places you need to re calibrate the new actuator with the tech 2

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Tuesday, January 12th, 2016 AT 1:26 PM

HMAC300