What would cause a 2009 Chevy Impala heater to operate only when moving?

Karl Cordova
20

Asked by Karl Nov 29, 2013 at 03:00 PM about the 2009 Chevrolet Impala LT

Question type: Maintenance & Repair

2009 Chevy Impala will not blow heat while in Park or standing still, but will blow heat
once car starts moving.

5 Answers

dandyoun
78,475

If damper doors in duct work are vacuum actuated I would suspect a vacuum leak. As you drive the vacuum increases enough to operate the damper doors and you start feeling the heat. Just a thought.

2 out of 2 people think this is helpful.
Js08016
35,535

Could be a bad blower motor. If it doesn't run you'll have air flow being pushed through the vents when you're moving but nothing when standing still. HTH. -Jim

Karl Cordova
20

Does the blower motor have it's own fuse? Start with the simple things.

2 out of 2 people think this is helpful.
dandyoun
78,475

Oh ok. Your blower is not working. Sorry jumped the gun a little. Yes you should be able to locate a fuse for the blower motor.

1 out of 1 people think this is helpful.
PeterMiller
0

Karl, Easy fix. You need to add more coolant. Done! Peter

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