How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on Chevrolet Astro?

Try raising the car before you start replacing Bank 2 Sensor 1 of the HO2S. Take off the connector from the HO2S before you continue. Take out the HO2S using the J 39194-B Oxygen Sensor Wrench. If you think it might help, put a small amount of GM 5613695 anti-seize compound on the new oxygen sensor threads; this product contains liquid graphite and glass beads to help take it off later. Use the Oxygen Sensor Wrench (J 39194-B) to fit in the HO2S and turn it until it reaches 42 N.m (31 lb ft). When it's done, attach the HO2S harness connector and then lower the vehicle.

OEM Chevrolet Astro Oxygen Sensor

Oxygen O2 Sensor

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11 Oxygen Sensors found

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Chevrolet Astro Oxygen Sensor Part Number: 19178938
$63.56 MSRP: $129.10
You Save: $65.54 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25165314, 25161152, 25312185
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 19178918
$70.38 MSRP: $142.96
You Save: $72.58 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25163079, 25312200
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor, Driver Side Part Number: 12561777
$79.34 MSRP: $143.61
You Save: $64.27 (45%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2002 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 25176708
$55.59 MSRP: $112.89
You Save: $57.30 (51%)
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Product Specifications
- Other Name: Sensor Assembly, Oxygen; Sensor, Computer Control Sensors
- Replaces: 10096129
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 19178959
$62.85 MSRP: $127.64
You Save: $64.79 (51%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaces: 25165312, 25312179
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Astro | Base, CL, CS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor, Passenger Side Part Number: 12561776
$67.74 MSRP: $126.41
You Save: $58.67 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2002 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 19355310
$86.80 MSRP: $163.00
You Save: $76.20 (47%)
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Product Specifications
- Other Name: Sensor Assembly, Heated Oxygen; Sensor, Computer Control Sensors
- Replaces: 19178935, 25312194, 25161128
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor, Driver Side Part Number: 12589550
$62.08 MSRP: $112.36
You Save: $50.28 (45%)
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Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Sensor, Computer Control Sensors
- Position: Driver Side
- Replaces: 12570795
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 12558143
$36.01 MSRP: $112.36
You Save: $76.35 (68%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor Part Number: 19211437
$19.00 MSRP: $33.92
You Save: $14.92 (44%)
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Sensor, Emission Control Sensor(Vehicle Speed); Sensor, Emission Control Sensor(Oxygen)
- Replaces: 19178952, 25171573, 25166816, 25171574, 25162693, 25106073, 25107378, 25165118, 25171581, 25132068, 25165120, 25162600, 19178953, 19178943, 25133185, 25133076, 19178919, 25162753
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1991 Chevrolet Astro | Base, CL, CS, LT | 4 Cyl 2.5 L GAS, 6 Cyl 4.3 L GAS
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Chevrolet Astro Oxygen Sensor, Passenger Side Part Number: 12589549
$69.46 MSRP: $124.05
You Save: $54.59 (45%)
Product Specifications
- Other Name: Sensor Assembly-Heated Oxygen (Position 2); Sensor, Computer Control Sensors
- Position: Passenger Side
- Replaces: 12570794
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2005 Chevrolet Astro | Base, LS, LT | 6 Cyl 4.3 L GAS

Chevrolet Astro Oxygen Sensor

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The Oxygen Sensor in automobiles particularly Chevrolet Astro is essentially used to check the residual unburned oxygen in the exhaust gas that is very useful to determine the mixture of air and fuel as well as generic emissions. It produces a voltage signal proportional to the concentration of oxygen, therefore the engine control computer is in a position to change the pulse width of the fuel injector. This back feedback system makes the engine to run in a "closed loop" improving the efficiency of the catalytic converter. Chevrolet Astro cars might have zirconium dioxide oxygen sensors, both narrow-band and wideband sensors are possible. Narrow-band sensors deliver repeatedly shifting rich/lean signals, while wide-band sensors supply a wider air-fuel mixture range signals. These sensors can, however, reduce in their effectiveness over time because of contaminant which causes excess emissions and less fuel economy. A Chevrolet Astro's Oxygen Sensor should be checked and serviced as often as possible for the vehicle to operate optimally.

Chevrolet Astro Oxygen Sensor Parts Questions & Experts Answers

Oxygen Sensor, Passenger Side
12589549
Q: How to replace the Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 on Chevrolet Astro?
A:
Try raising the car before you start replacing Bank 2 Sensor 1 of the HO2S. Take off the connector from the HO2S before you continue. Take out the HO2S using the J 39194-B Oxygen Sensor Wrench. If you think it might help, put a small amount of GM 5613695 anti-seize compound on the new oxygen sensor threads; this product contains liquid graphite and glass beads to help take it off later. Use the Oxygen Sensor Wrench (J 39194-B) to fit in the HO2S and turn it until it reaches 42 N.m (31 lb ft). When it's done, attach the HO2S harness connector and then lower the vehicle.