How to replace spark plugs on Chevrolet Classic?

Engineering maintenance begins with cooling the vehicle to secure the Spark Plug threads as well as the Cylinder Head from damage. Start by taking the ignition coil housing off and clean water and debris from Spark Plug holes through compressed air application. Spark Plug sockets serve to eliminate the spark plugs before you check their condition. A Spark Plug gap gage should be used with wire type spares to adjust gaps to 1.14 millimeters (0.045 inches). The application of anti-seize compound onto spark plugs should be avoided because it can lead to over-torque and harm the Cylinder Head threads. First install the spark plugs with a Spark Plug socket before tightening them to 20 n.m (15 lb ft) and then reinstall the ignition coil housing.

OEM Chevrolet Classic Spark Plug

Ignition Spark Plug

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Chevrolet Classic Spark Plug Part Number: 12681663
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
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Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12598004, 12625058
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Chevrolet Classic | Base, LS | 4 Cyl 2.2 L GAS

Chevrolet Classic Spark Plug

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Chevrolet Classic Spark Plug Parts and Q&A

Spark Plug
12681663
Q: How to replace spark plugs on Chevrolet Classic?
A:
Engineering maintenance begins with cooling the vehicle to secure the Spark Plug threads as well as the Cylinder Head from damage. Start by taking the ignition coil housing off and clean water and debris from Spark Plug holes through compressed air application. Spark Plug sockets serve to eliminate the spark plugs before you check their condition. A Spark Plug gap gage should be used with wire type spares to adjust gaps to 1.14 millimeters (0.045 inches). The application of anti-seize compound onto spark plugs should be avoided because it can lead to over-torque and harm the Cylinder Head threads. First install the spark plugs with a Spark Plug socket before tightening them to 20 n.m (15 lb ft) and then reinstall the ignition coil housing.