How to Replace a Heated Oxygen Sensor (HO2S) 2 on 2003 Chevrolet Monte Carlo?

Start the heated Oxygen Sensor (HO2S) 2 replacement by elevating and supporting the vehicle. Having low engine temperatures that fall below 48°c (120°F) makes the heated Oxygen Sensor hard to remove but using excessive force will harm the Exhaust Pipe threads. Begin by removing the ho2s 2 electrical connector after which you should install the heated Oxygen Sensor wrench (J 39194-B) to loosen the sensor. Apply special anti-seize compound gm p/n 12377953 or its equivalent to the ho2s 2 threads ahead of installation because this proprietary anti-seize compound made with graphite and glass beads helps simplify future sensor removal. Combine anti-seize compound gm p/n 12377953 with the ho2s 2 threads and then apply the heated Oxygen Sensor wrench (J 39194-B) to torque the sensor at 41 n.m (30 lb ft). Use an ho2s 2 electrical connector to finish the installation while lowering the vehicle.

OEM 2003 Chevrolet Monte Carlo Oxygen Sensor

Oxygen O2 Sensor

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2003 Chevrolet Monte Carlo Oxygen Sensor
Part Number: 19178747
$83.90 MSRP: $151.86
You Save: $67.96 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors
- Replaced by: 19355307
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.1 x 2.1 x 2.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19178747
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Chevrolet Monte Carlo Submodels:
- LS, LS Competition, LS Sport, LT, SS, SS 35th Anniversary Edition, SS Dale Earnhardt Signature Edition, SS High Sport, SS Pace Car | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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2003 Chevrolet Monte Carlo Oxygen Sensor
Part Number: 19178958
$64.36 MSRP: $130.72
You Save: $66.36 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor; Manifold
- Replaces: 25178022, 25312203, 25312211, 25164488
- Item Weight: 0.60 Pounds
- Item Dimensions: 8.0 x 2.1 x 2.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19178958
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Chevrolet Monte Carlo Submodels:
- LS, SS, SS 35th Anniversary Edition, SS Dale Earnhardt Signature Edition, SS High Sport, SS Pace Car, Z34 | 6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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2003 Chevrolet Monte Carlo Oxygen Sensor
Part Number: 12559850
$58.78 MSRP: $119.40
You Save: $60.62 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Front Oxygen Sensor
- Item Weight: 0.50 Pounds
- Item Dimensions: 8.4 x 3.3 x 3.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12559850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Chevrolet Monte Carlo Submodels:
- LS, LS Competition, LS Sport | 6 Cyl 3.4 L GAS

2003 Chevrolet Monte Carlo Oxygen Sensor

With a comprehensive array of OEM 2003 Chevrolet Monte Carlo Oxygen Sensor, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 Chevrolet Monte Carlo Oxygen Sensor are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2003 Chevrolet Monte Carlo Parts Questions & Experts Answers

Q: How to Replace a Heated Oxygen Sensor (HO2S) 2 on 2003 Chevrolet Monte Carlo?
A: Start the heated Oxygen Sensor (HO2S) 2 replacement by elevating and supporting the vehicle. Having low engine temperatures that fall below 48°c (120°F) makes the heated Oxygen Sensor hard to remove but using excessive force will harm the Exhaust Pipe threads. Begin by removing the ho2s 2 electrical connector after which you should install the heated Oxygen Sensor wrench (J 39194-B) to loosen the sensor. Apply special anti-seize compound gm p/n 12377953 or its equivalent to the ho2s 2 threads ahead of installation because this proprietary anti-seize compound made with graphite and glass beads helps simplify future sensor removal. Combine anti-seize compound gm p/n 12377953 with the ho2s 2 threads and then apply the heated Oxygen Sensor wrench (J 39194-B) to torque the sensor at 41 n.m (30 lb ft). Use an ho2s 2 electrical connector to finish the installation while lowering the vehicle.

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2002 Chevrolet Monte Carlo Oxygen Sensor 2004 Chevrolet Monte Carlo Oxygen Sensor