Ignition Knock (Detonation) Sensor-VIN: U, Eng Code: LQ4 213-3521

Part Number: 213-3521

Features:

  • Sends signals to the engine control module (ECM) to adjust timing
  • Helps prevent damage to the engine caused by pre-ignition
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Description:

ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle's original components. These sensors create a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air/fuel mixture. These original equipment ignition knock sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Tips

  • Use approved octane fuel for y
our vehicle.
  • Have vehicle serviced if 'Check Engine' light illuminates.

FAQ

  • Can a bad sensor cause the vehicle to run hot?
  • Yes. With a faulty sensor, there is a chance that higher emissions are being produced from the engine because the engine is running hot.
  • Can engine knock damage an engine?
  • Yes. Knock is caused by pre-ignition or detonation. If left uncorrected, it can cause possible damage to the motor.

Troubleshooting

Downloads
Warranty
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