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
$53.87 MSRP: $164.44
You Save: $110.57 (68%)
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Product Specifications
- Other Name: Sensor Kit,Fuel Level ; Sensor Kit, Fuel Tank Meter/Pump; Fuel Gauge Sending Unit, Level Sensor
- Replaces: 88966957
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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
$49.63 MSRP: $142.34
You Save: $92.71 (66%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Kit,Fuel Level; Fuel Gauge Sending Unit, Level Sensor
- Replaces: 19153635, 88966954, 19178477
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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
$65.27 MSRP: $199.24
You Save: $133.97 (68%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Kit,Fuel Level
- Replaces: 88965821
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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
$31.16 MSRP: $55.91
You Save: $24.75 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Gauge Sending Unit, Level Sensor
- Replaced by: 42783077
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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
$38.23 MSRP: $68.56
You Save: $30.33 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Gauge Sending Unit, Level Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.2L, 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Fuel Tank Meter/Pump SENSOR KIT
Part Number: 19206121
Product Specifications
- Other Name: Sensor Kit,Fuel Level ; Sensor Kit, Fuel Tank Meter/Pump
- Replaces: 88966951
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L

Chevrolet Trailblazer Fuel Level Sensor Parts Questions & Experts 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.