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.
Air Cleaner - Thermostatic: Description
Fresh air or heated air is made available to engine by ducting which directs air into air cleaner assembly. Air temperature is controlled by temperature-sensitive vacuum system that operates duct valve.
Vacuum-operated duct may select cool air from outside through pick-up tube, or warm air from exhaust manifold shroud. System consists of shroud, air cleaner assembly with vacuum motor, duct and valve assembly, temperature sensor and cold-weather modulator (if equipped). See Figure .
NO RELATED
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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.