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.
2005 Chrysler PT Cruiser Base, 2D Convertible, AutomaticFACTORY OEM SERVICE PROCEDURE
Removal - 1/1 Upstream
- Remove the air cleaner lid and makeup air hose.
- Remove the negative battery cable.
- Disconnect electrical connector from sensor.
- Remove sensor using an oxygen sensor special tool C-4907. See Fig 1.
| 1 - DOWN STREAM O2 SENSOR |
| 2 - UP STREAM O2 SENSOR |
Factory Service Tools
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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.