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?

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 Chevrolet Blazer MAP Sensor

Manifold Air Pressure Sensor

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10 MAP Sensors found

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Chevrolet Blazer Sensor,Map
Part Number: 12569240
$65.02 MSRP: $122.71
You Save: $57.69 (48%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 16254719, 16137039
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1994 Chevrolet Blazer | 1/2 TON | 6 Cyl 2.8L, 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 6.5L Diesel
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Chevrolet Blazer Sensor Assembly, Turbo Air Press
Part Number: 55493530
$9.50 MSRP: $15.72
You Save: $6.22 (40%)
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Product Specifications
- Other Name: Boost Sensor, Map Sensor, Pressure Sensor, Sensor
- Replaced by: 12694431
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L
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Chevrolet Blazer Sensor Assembly, Map
Part Number: 55573248
$30.02 MSRP: $56.65
You Save: $26.63 (48%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 12591290, 93192107
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | L 4 DOOR SUV, LT 4 DOOR SUV | 4 Cyl 2.5L
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Chevrolet Blazer Sensor Assembly, Manifold Differential Pressure
Part Number: 16231141
$31.90 MSRP: $102.62
You Save: $70.72 (69%)
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Product Specifications
- Other Name: SENSOR
- Replaces: 16054920, 16006834
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Blazer | 1/2 TON | 8 Cyl 5.7L
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Chevrolet Blazer Sensor,Map
Part Number: 17112715
$51.39 MSRP: $165.35
You Save: $113.96 (69%)
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Product Specifications
- Other Name: SENSOR, Computer Control Sensors; M.A.P. Sensor, Map Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer SENSOR ASM,MAP
Part Number: 19418808
$72.39 MSRP: $143.62
You Save: $71.23 (50%)
Ships in 1 Business Day
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Product Specifications
- Other Name: M.A.P. Sensor, Map Sensor, Valve Assembly
- Replaces: 16249939, 09359409, 12614973, 16187556, 9359409
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer SENSOR ASM,MAP
Part Number: 19418807
$74.35 MSRP: $147.51
You Save: $73.16 (50%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: M.A.P. Sensor, Map Sensor
- Replaces: 12614970, 16212460
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Blazer | 2 DOOR, 4 DOOR
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Chevrolet Blazer Sensor Assembly, Map
Part Number: 12650600
$26.45 MSRP: $49.90
You Save: $23.45 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: SENSOR, Computer Control Sensors; M.A.P. Sensor, Map Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer Sensor Assembly, Map
Part Number: 12711664
$26.04 MSRP: $46.70
You Save: $20.66 (45%)
ADD TO CART
Product Specifications
- Other Name: M.A.P. Sensor, Map Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer Sensor,Map
Part Number: 12569241
Product Specifications
- Other Name: SENSOR, Computer Control Sensors
- Replaces: 16009886, 16040609, 16254539
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | 1/2 TON | 8 Cyl 6.5L Diesel

Chevrolet Blazer MAP Sensor

The MAP Sensor in Chevrolet Blazer cars is a crucial unit that calculates the positive air pressure that enters the intake manifold to generate timely signals to the ECU for the proportionalal fuel mixture. That is why in fuel-injected engines, the MAP Sensor helps in deriving the estimated air density and calculating the right proportion of the air-to-fuel mixture for combustion. Naturally aspirated engines will work well with either a MAP or a MAF sensor; however, forced induction will work with both. MAP Sensor also aids in the diagnostic system which is present in vehicle; it helps in controlling the fuel delivery, the ignition period, and other necessary functioning in the engine.

Each OEM Chevrolet Blazer MAP 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.

Chevrolet Blazer MAP Sensor Parts Questions & Experts Answers

SENSOR ASM,MAP
19418807
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?
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.