How to check and replace Camshaft Position Sensor,Coolant Temperature Sensor,Crankshaft Position Sensor,Intake Manifold Temperature Sensor,Knock Sensor,Oxygen Sensor,Vehicle Speed Sensor,Neutral Safety Switch,MAP Sensor and Throttle Position Sensor on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?

Various engine sensors and components have checking procedures,the engine coolant temperature (ECT) sensor is a thermistor that changes resistance with temperature, and a failure in the circuit can cause trouble codes. The resistance should be measured when cold and warm while ensuring reference voltage from PCM is around 5.0 volts for the verification. Manifold Absolute Pressure (MAP) Sensor monitors changes in intake manifold pressure then varies its voltage output accordingly. Look at the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. Intake Air Temperature (IAT) Sensor acts as a thermistor where you can measure its resistance at different temperatures to make sure it changes as expected. Also, use a scan tool to monitor the IAT sensor for performance. The oxygen sensor in exhaust detects oxygen content which you can check its millivolt signal while warming up your engine. Check whether the oxygen sensor heater has correct voltage or not. Vehicle Speed Sensor (VSS) provides speed data to PCM which can be checked for reference voltage. Depending on the type of engine, Camshaft Sensor and Crankshaft Sensor should be checked for resistance and proper signal output. Finally, Knock Sensors detect engine knock which should be checked for reference voltage and resistance. If any component fails these checks, replacement may be necessary.

Genuine GMC Sonoma Knock Sensor

Engine Knock Sensor

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9 Knock Sensors found

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GMC Sonoma Sensor,Knock
Part Number: 10456288
$44.79 MSRP: $93.01
You Save: $48.22 (52%)
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); ESC Sensor, Knock Sensor
- Replaces: 10456018
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1992 GMC Sonoma | PICKUP | 6 Cyl 4.3L
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GMC Sonoma Sensor,Knock
Part Number: 10456549
$35.57 MSRP: $114.39
You Save: $78.82 (69%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); ESC Sensor, Knock Sensor
- Replaces: 10456031
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991 GMC Sonoma | PICKUP | 6 Cyl 4.3L
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GMC Sonoma Sensor Assembly, Knock
Part Number: 21024981
$30.98 MSRP: $58.47
You Save: $27.49 (48%)
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Replaces: 21024729
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2004 GMC Sonoma | 4 DOOR, PICKUP, PICKUP EXTENDED CAB | 6 Cyl 4.3L
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GMC Sonoma Sensor,Knock
Part Number: 10456209
$13.59 MSRP: $25.64
You Save: $12.05 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2003 GMC Sonoma | PICKUP | 4 Cyl 2.2L, 4 Cyl 2.2L Flex
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GMC Sonoma Sensor,Knock
Part Number: 10456146
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); ESC Sensor, Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1995 GMC Sonoma | PICKUP | 6 Cyl 4.3L
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GMC Sonoma Sensor,Knock
Part Number: 10456287
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Control Module, ESC Sensor, Knock Sensor, Sensor
- Replaces: 10456017
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC Sonoma | PICKUP | 6 Cyl 2.8L
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GMC Sonoma Sensor,Knock
Part Number: 10456082
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); ESC Sensor, Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 GMC Sonoma | PICKUP | 6 Cyl 4.3L
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GMC Sonoma Sensor Assembly, Knock
Part Number: 10456218
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Sonoma | PICKUP | 6 Cyl 4.3L
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GMC Sonoma Sensor,Knock
Part Number: 10456075
Product Specifications
- Other Name: SENSOR, Distributor (also Knock Sensor); Knock Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC Sonoma | PICKUP | 6 Cyl 4.3L

GMC Sonoma Knock Sensor

Knock Sensor in GMC Sonoma is an essential feature that identifies engine knock, which may develop because of an improper ignition timing. This device sends signals to the powertrain control module (PCM) which allows it to advance the ignition timing in order to reduce an excessive detonation. Usually the knock sensor is piezoelectric, transforming mechanical oscillations into electrical signals in which high pressure peaks reflecting knocking are of interest. It was stated that, throughout the years of its production, especially the GMC Sonoma vehicles have employed, the top level of knock sensor technology in order to refine the performance of the engine, especially depending on the kind of fuel used, or the temperature. Typically, the system can change ignition timing for a single cylinder and control boost pressure so that the engine works properly and there is little chance of failure. This capability is very useful to keep the Sonoma at optimum performance during low octane fuel usage; this served as an example on the role of using knock sensor in today's spark ignition engines.

Each OEM GMC Sonoma Knock Sensor we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

GMC Sonoma Knock Sensor Parts Questions & Experts Answers

Sensor,Knock
10456209
Q: How to check and replace Camshaft Position Sensor,Coolant Temperature Sensor,Crankshaft Position Sensor,Intake Manifold Temperature Sensor,Knock Sensor,Oxygen Sensor,Vehicle Speed Sensor,Neutral Safety Switch,MAP Sensor and Throttle Position Sensor on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?
A: Various engine sensors and components have checking procedures,the engine coolant temperature (ECT) sensor is a thermistor that changes resistance with temperature, and a failure in the circuit can cause trouble codes. The resistance should be measured when cold and warm while ensuring reference voltage from PCM is around 5.0 volts for the verification. Manifold Absolute Pressure (MAP) Sensor monitors changes in intake manifold pressure then varies its voltage output accordingly. Look at the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. Intake Air Temperature (IAT) Sensor acts as a thermistor where you can measure its resistance at different temperatures to make sure it changes as expected. Also, use a scan tool to monitor the IAT sensor for performance. The oxygen sensor in exhaust detects oxygen content which you can check its millivolt signal while warming up your engine. Check whether the oxygen sensor heater has correct voltage or not. Vehicle Speed Sensor (VSS) provides speed data to PCM which can be checked for reference voltage. Depending on the type of engine, Camshaft Sensor and Crankshaft Sensor should be checked for resistance and proper signal output. Finally, Knock Sensors detect engine knock which should be checked for reference voltage and resistance. If any component fails these checks, replacement may be necessary.

Related GMC Sonoma Parts

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