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 MANUALSCHEVROLET2018SONIC PREMIER, 4D SEDAN, AUTOMATIC TRANSREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION - 6T30 (MH9) OR 6T40 (MH8) - REPAIR INSTRUCTIONS - ON VEHICLEREPAIR INSTRUCTIONS - ON VEHICLEINPUT SPEED SENSOR REPLACEMENTINSTALLATION PROCEDURE
2018 Chevrolet Sonic Premier, 4D Sedan, Automatic Trans
Installation Procedure
2018 Chevrolet Sonic Premier, 4D Sedan, Automatic TransSECTION Installation Procedure
Install the 3 input speed sensor seals (1).
- Install the input speed sensor (3).
- Verify that the retaining tabs are locked completely.
- Install the input speed sensor bolt (2) M6 x 23 and tighten to 9 N.m (80 lb in).
- Install the control solenoid valve and transmission control module assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
- Perform the transmission adaptive values learn procedure. Refer to Transmission Adaptive Values Learn .
CAUTION:
Refer to Fastener Caution .
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.