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

GM Genuine Parts Ignition Knock (Detonation) Sensor

GM Part #96253545

ACDelco Part #96253545

MSRP$179.66*

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

Terminal TypeBlade
Wiring Harness IncludedYes
Connector ShapeRectangular
Mounting Hardware IncludedNo
Mounting TypeBolted
Terminal Quantity3
Length1.69 in / 43 mm
ClassificationOE
Connector Quantity1
Terminal GenderMale
Connector GenderFemale
Wire Harness Length9.65 in / 245 mm

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)
AveoHatchbackBase, LS, LT2004, 2005, 2006, 2007, 2008
AveoSedanBase, LS, LT2004, 2005, 2006, 2007, 2008
Aveo5LS2007, 2008
Epica2004, 2005, 2006
OptraHatchbackBase, LS, LT2004, 2005, 2006, 2007

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.