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

30

Asked by 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.

7 Answers

104,455

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.
59,205

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

30

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

3 out of 3 people think this is helpful.
104,455

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.
10

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

1 out of 1 people think this is helpful.
40

Thermastat and do s flush of radiator

10

If heater or air doesn't come on. Is the blower bad. If fuse is good?

1 out of 1 people think this is helpful.

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