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GM Genuine Parts Ignition Knock (Detonation) Sensor
OE
Pack of 1

GM Genuine Parts Ignition Knock (Detonation) Sensor

GM Part #25201065

ACDelco Part #25201065

MSRP$24.90*

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.

  • 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

Pack of 1

About this product

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.

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  • 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

Connector GenderFemale
Wiring Harness IncludedYes
Terminal TypeBlade
Mounting Hardware IncludedNo
Mounting TypeBolted
Connector ShapeRectangular
Terminal Quantity2
Length2.17 in / 55.12 mm
Wire Harness Length3.96 in / 100.58 mm
ClassificationOE
Terminal GenderMale
Connector Quantity1

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

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

ModelBody StyleTrimYear(s)
CruzeL, LS2011, 2012, 2013, 2014, 2015
Cruze LimitedL, LS2016
SonicHatchbackLS, LT, LTZ2012, 2013, 2014, 2015, 2016, 2017, 2018
SonicSedanLS, LT, LTZ2012, 2013, 2014, 2015, 2016, 2017, 2018

Frequently Asked Questions

Yes. With a faulty sensor, there is a chance that higher emissions are being produced from the engine because the engine is running hot.

Yes. Knock is caused by pre-ignition or detonation. If left uncorrected, it can cause possible damage to the motor.