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 MANUALSDODGE1991SHADOW L4-135 2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSOXYGEN SENSORSERVICE AND REPAIR
1991 Dodge Shadow L4-135 2.2L SOHC
Oxygen Sensor: Service and Repair
1991 Dodge Shadow L4-135 2.2L SOHCSECTION Service and Repair
1. Using tool No. C-4589, or equivalent, remove the oxygen sensor.
2. After removal, clean the threads in the exhaust using an 18 mm X 1.5 X 6E tap.
3. If reinstalling the same sensor, apply a suitable anti-seize compound (Loctite# 771-64 or equivalent) to the threads of the sensor. New sensors are packaged with an anti-seize compound already applied to the threads and no further application is needed.
4. When installing the sensor, torque to 20 lbs. ft. (27 N-m).
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.