Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Controls: A/C
A/C compressor operates in this mode. Vacuum is not applied to air inlet door, allowing outside air into system. Heater water control valve is at no vacuum, allowing hot coolant to reach heater core. Vacuum is applied to floor/panel and panel/defrost door actuators. Airflow exits from panel vents. Temperature setting can be changed manually. Blower motor is on.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.