How to Replace Spark Plug Wires on a 1995 Pontiac Firebird

The Pontiac Firebird was introduced in 1967 and was an addition to the muscle car world for many years. The 1995 Pontiac Firebird was available with three engines: a 3.4-liter V-6, a 3.8-liter V-6 and a 5.7-liter V-8. The spark plug replacement procedures for all three engines is similar, with the number and location of the plugs differing among the three engines, as well as the spark plug gap specifications. All three engines have a different gap size that must be adhered to.

Instructions

1

Open the hood on the Firebird. Disconnect the negative battery cable from the battery using a ratchet and socket.

2

Remove a single spark plug wire from one of the spark plugs on the engine. Twist the spark plug boot and pull it free from the plug. Do not pull the spark plug wire directly, as you may damage the connector. Inspect the spark plug wire. If there are any tears or cracks in the wire, or it has a blackened look, replace the wire.

3

Remove the spark plug from the engine using a spark plug socket, ratchet and extension. Turn the spark plug counterclockwise to remove it from the cylinder head. Throw away the old spark plug. Set the gap on the new spark plug to .045 for the 3.4-liter engine, .060 for the 3.8-liter engine or .050 for the 5.7-liter engine. Disconnect the extension and spark plug socket from the ratchet.

4

Insert the new spark plug into the socket. Install the new plug into the cylinder head and turn until it is snug by hand to ensure proper threading.

5

Tighten the spark plug to 11 foot-pounds of torque using a half-inch-drive torque wrench, socket and extension. Apply a small amount of dielectric grease into the spark plug wire end. This will help protect the plug and wire. Install the spark plug wire onto the plug by pushing the wire boot onto the plug until it clicks and locks into place.

6

Repeat steps 2 through 5 to replace the rest of the spark plugs. Reconnect the negative battery cable and tighten it snug with a ratchet and socket.