Air not blowing

Hello,

This sounds to me like this could be a problem with your blend door actuator. I have included a link for you to go to:

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

Please go through this guide and get back to us with what you able to find out, please.

Thanks,
Alex
2CarPros

Welcome to 2CarPros.

The mode door is responsible for directing air flow. If you are not getting air through the vents on the dash, that is my first suspect.

The mode door actuator is behind the glove box. If you are facing it, the component would be roughly at 9oclock. See picture 1

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Here are directions for testing the actuator. Pic 2 correlates with these directions. You will need to use a mult-meter to test this. I will provide a few links at the end of this thread showing how to use basic testing equipment.

FRONT MODE CONTROL MOTOR TEST
Front Mode Control Motor Test

NOTE: Before testing, check for HVAC DTCs See: Heating and Air Conditioning > Initial Inspection and Diagnostic Overview > How To Troubleshoot The Heating And A/C Systems.

1. Disconnect the 7P connector from the front mode control motor.

NOTICE
Incorrectly applying power and ground to the front mode control motor will damage it. Follow the instructions carefully.

2. Connect battery power to terminal No. 1 of the front mode control motor, and ground terminal No. 2; the front mode control motor should run smoothly, and stop at Vent. If it doesn't, reverse the connections; the front mode control motor should run smoothly, and stop at Defrost. When the front mode control motor stops running, disconnect battery power immediately.

pic 2

3. If the front mode control motor did not run in step 2, remove it, then check the front mode control linkage and doors for smooth movement.

- If the linkage and doors move smoothly, replace the front mode control motor See: Air Door Actuator / Motor, HVAC > Removal and Replacement > Front Mode Control Motor Replacement.
- If the linkage or doors sticks or binds, repair them as needed.
- If the front mode control motor runs smoothly, go to step 4.

4. Use a digital multimeter with an output of 1 mA or less at the 20 kOhms range. With the front mode control motor running as in step 2, check for continuity between terminals No. 3, No. 4, No. 5, and No. 6, and terminal No. 7 individually. There should be continuity for a moment at each terminal as the motor moves past the switch's terminal.

5. If there is no continuity for a moment at each terminal, replace the front mode control motor See: Air Door Actuator / Motor, HVAC > Removal and Replacement > Front Mode Control Motor Replacement.

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If you find the actuator is bad, here are directions for replacement.

FRONT MODE CONTROL MOTOR REPLACEMENT
Front Mode Control Motor Replacement

1. Remove the passenger's dashboard trim See: Dashboard / Instrument Panel > Removal and Replacement > Passenger's Dashboard Trim Removal/Installation and the glove box See: Glove Compartment > Removal and Replacement.

2. Remove the bolt, self-tapping screws, harness clip, and the passenger's heater duct (A).

NOTE: Removing the upper side screw, through the hole (B).

pic 3

3. Remove the self-tapping screw (A) from the upper side, then remove the self-tapping screws (B) from the lower side, then remove the front mode control motor (C).

pic 4

4. Install the motor in the reverse order of removal. Make sure the pin on the motor is properly engaged with the linkage. After installation, make sure the motor runs smoothly.

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Helpful Links

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

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Let me know if this helps or if you have other questions.

Take care,
Joe