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 MANUALSCHEVROLET2005OPTRA (CANADA) L4-2.0LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETRANSMISSION SPEED SENSORSERVICE AND REPAIRINPUT SPEED SENSOR REPLACEMENT
2005 Chevrolet Optra (CANADA) L4-2.0L
Input Speed Sensor Replacement
2005 Chevrolet Optra (CANADA) L4-2.0LSECTION Input Speed Sensor Replacement
Input Speed Sensor Replacement
Removal Procedure
Caution:
Refer to Battery Disconnect Caution Battery Disconnect Caution.
1. Disconnect the negative battery cable.
2. Disconnect the input shaft speed (ISS) sensor electrical connector.
3. Remove the ISS sensor retaining bolt.
4. Remove the ISS sensor from the transaxle.
Installation Procedure
Important:
Lubricate the O-ring with ISU DEXRON III.
1. Install a new O-ring on the ISS sensor.
Notice:
Refer to Fastener Notice Fastener Notice.
2. Install the ISS sensor and retaining bolt into the transaxle case.
Tighten the ISS sensor retaining bolt to 5.4 Nm (48 lb in).
3. Connect the ISS sensor electrical connector.
4. Connect the negative battery cable.
RENDER: 1.0x
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.