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 MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 795 (HVAC SYSTEM)CONTROL SYSTEMEVAPORATOR TEMPERATURE SENSOR INSPECTION
2004 Oldsmobile Bravada RWD
Evaporator Temperature Sensor Inspection
2004 Oldsmobile Bravada RWDSECTION Evaporator Temperature Sensor Inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Inspect the evaporator temperature sensor when it is installed to the A/C unit.
- Set the fan speed MAX HI.
- Set the temperature control at MAX COLD.
- Set the RECIRCULATE mode.
- Turn the A/C switch off.
- Close all doors and windows.
- Wait for 5 min.
- Disconnect the evaporator temperature sensor connector.
- Measure the temperature at the blower inlet.
- Measure the resistance between the evaporator temperature sensor terminals.
- If the resistance is not as shown in the graph, replace the evaporator temperature sensor.
RENDER: 1.0x
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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.