How to check the fuel level sending unit?

To check the fuel level sensor, start by removing the fuel tank and the fuel pump module. Then, connect the probes of an ohmmeter to the two fuel level sensor terminals of the fuel pump module electrical connector. Position the float in the down (empty) position and note the reading on the ohmmeter. Next, move the float up to the full position while watching the meter. If the fuel level sensor resistance does not change smoothly as the float travels from empty to full, it is recommended to replace the fuel level sensor assembly. For removal, disconnect the fuel level sensor electrical connector from the module cover and remove the sensor retaining clip. Pinch the tabs together and slide the fuel level sensor off the module, noting the routing of the wiring for installation. To install, simply reverse the removal steps.

Genuine Chevrolet Trailblazer Fuel Level Sensor

Gas Gauge Sensor

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6 Fuel Level Sensors found

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Chevrolet Trailblazer Fuel Tank Meter/Pump SENSOR KIT
Part Number: 19177712
- Other Name: Sensor Kit,Fuel Level ; Sensor Kit, Fuel Tank Meter/Pump; Fuel Gauge Sending Unit, Level Sensor
- Replaces: 88966957
$69.06 MSRP: $164.44
You Save: $95.38 (59%)

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Fits the following Vehicles:
2005-2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Fuel Level Sensor Kit
Part Number: 19256264
- Other Name: Sensor Kit,Fuel Level; Fuel Gauge Sending Unit, Level Sensor
- Replaces: 19153635, 88966954, 19178477
$67.76 MSRP: $142.34
You Save: $74.58 (53%)

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Fits the following Vehicles:
2005-2009 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Fuel Level Sensor Kit
Part Number: 19206123
- Other Name: Sensor Kit,Fuel Level
- Replaces: 88965821
$83.68 MSRP: $199.24
You Save: $115.56 (59%)

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Fits the following Vehicles:
2002-2004 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Sensor Kit, Fuel Lvl
Part Number: 42720988
- Other Name: Fuel Gauge Sending Unit, Level Sensor
- Replaced by: 42783077
$31.16 MSRP: $55.91
You Save: $24.75 (45%)

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Fits the following Vehicles:
2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Sensor Kit, Fuel Lvl
Part Number: 42720989
- Other Name: Fuel Gauge Sending Unit, Level Sensor
$38.23 MSRP: $68.56
You Save: $30.33 (45%)

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More Info
Fits the following Vehicles:
2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.2L, 3 Cyl 1.3L
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View related parts
Chevrolet Trailblazer Fuel Tank Meter/Pump SENSOR KIT
Part Number: 19206121
- Other Name: Sensor Kit,Fuel Level ; Sensor Kit, Fuel Tank Meter/Pump
- Replaces: 88966951
More Info
Fits the following Vehicles:
2002-2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
Less Info

Chevrolet Trailblazer Fuel Level Sensor Parts Questions & Answers

Fuel Tank Meter/Pump SENSOR KIT
19177712
Q: How to check the fuel level sending unit?
A: To check the fuel level sensor, start by removing the Fuel Tank and the Fuel Pump module. Then, connect the probes of an ohmmeter to the two fuel level sensor terminals of the fuel pump module electrical connector. Position the float in the down (empty) position and note the reading on the ohmmeter. Next, move the float up to the full position while watching the meter. If the fuel level sensor resistance does not change smoothly as the float travels from empty to full, it is recommended to replace the fuel level sensor assembly. For removal, disconnect the fuel level sensor electrical connector from the module cover and remove the sensor retaining clip. Pinch the tabs together and slide the fuel level sensor off the module, noting the routing of the wiring for installation. To install, simply reverse the removal steps.