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HOMESERVICE MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 32 (ENGINE CONTROLS/FUEL - 1.4L (LUV) - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSKNOCK SENSOR REPLACEMENT
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol

Knock Sensor Replacement

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Knock Sensor Replacement
WARNING: This page is about a different car, the 2018 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
GM2191811Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
1 Knock Sensor Bolt
CAUTION:

Refer to Fastener Caution .

Procedure

  1. Disconnect the electrical connector.
  2. DO NOT mistake the knock sensor electrical connector with the generator electrical connector.

Tighten 
20 N.m (15 lb ft)
2 Knock Sensor
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.