How to replace spark plugs safely and effectively on 2005 Chevrolet Cobalt?

Engine replacement must take place when the system has cooled to avoid hurtful contact to aluminum cylinder heads. First access the ignition coil housing and then install a Spark Plug socket for removing the spark plugs while clearing all water and debris from the Spark Plug holes using compressed air. Check the spark plugs for potential problems during the inspection process. You should use a round wire type Spark Plug gap gage to gap the new plug and set it at 1.14 mm (0.045 in). When installing the spark plugs through a Spark Plug socket users should avoid applying anti-seize compound since it could lead to excessive torque that damages the Cylinder Head threads. Finish by putting back the ignition coil housing after properly tightening the spark plugs to 20 n.m (15 lb ft).

OEM 2005 Chevrolet Cobalt Spark Plug

Ignition Spark Plug

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2005 Chevrolet Cobalt Spark Plug Part Number: 12681661
$9.50 MSRP: $16.96
You Save: $7.46 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12607280
- Item Weight: 1.10 Pounds
- Item Dimensions: 6.9 x 3.9 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 4
- SKU: 12681661
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2005 Chevrolet Cobalt Submodels:
- Base, LS, LT, LTZ | 4 Cyl 2.2 L GAS
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2005 Chevrolet Cobalt Spark Plug Part Number: 12680075
$8.15 MSRP: $14.56
You Save: $6.41 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12610767, 12787099
- Item Weight: 0.70 Pounds
- Item Dimensions: 3.2 x 3.1 x 1.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 4
- SKU: 12680075
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Cobalt Submodels:
- SS | 4 Cyl 2.0 L GAS

2005 Chevrolet Cobalt Spark Plug

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2005 Chevrolet Cobalt Spark Plug Parts and Q&A

Q: How to replace spark plugs safely and effectively on 2005 Chevrolet Cobalt?
A: Engine replacement must take place when the system has cooled to avoid hurtful contact to aluminum cylinder heads. First access the ignition coil housing and then install a Spark Plug socket for removing the spark plugs while clearing all water and debris from the Spark Plug holes using compressed air. Check the spark plugs for potential problems during the inspection process. You should use a round wire type Spark Plug gap gage to gap the new plug and set it at 1.14 mm (0.045 in). When installing the spark plugs through a Spark Plug socket users should avoid applying anti-seize compound since it could lead to excessive torque that damages the Cylinder Head threads. Finish by putting back the ignition coil housing after properly tightening the spark plugs to 20 n.m (15 lb ft).