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.

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HOMESERVICE MANUALSCHRYSLER2004PT CRUISER TOURING, 2.4 B, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING)ENGINE SENSORS & SWITCHESINLET AIR TEMPERATURE SENSOR

2004 Chrysler PT Cruiser Touring, 2.4 B, Automatic

Inlet Air Temperature Sensor

2004 Chrysler PT Cruiser Touring, 2.4 B, AutomaticSECTION Inlet Air Temperature Sensor

WARNING: This page is about a different car, the 2002 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit identification and wiring diagram, see WIRING DIAGRAMS article. After each repair procedure has been completed, reconnect all components. Perform POWERTRAIN VERIFICATION TEST VER-2 under VERIFICATION TESTS to ensure system is functioning properly.

Turn ignition on. Using scan tool, read inlet air temperature. Turn ignition off. Within 5 minutes, remove IAT sensor. IAT sensor is located in air intake duct. See Figure . Using a temperature probe, measure air temperature inside IAT sensor opening. If air temperature is within 10°F of temperature displayed on scan tool, test is complete. If air temperature is not within 10°F of temperature displayed on scan tool, replace IAT sensor.

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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.