How often should I change the spark plug on my Chevy Trailblazer?

It is important to replace the spark plugs on your Chevrolet Trailblazer every 20,000 or 30,000 miles to maintain engine performance and fuel economy.

How to tighten spark plugs on Chevy Blazer?

Apply a tiny amount of anti-seize compound to the plug threads. Install new plugs into the number 1, 3 and 5 locations by reversing the removal procedure. Once installed, tighten the plugs just past finger-tight. Torque the spark plugs to 11 foot-pounds with the torque wrench. Lower the Blazer to the ground.

Where is the Veci label on a Chevy Trailblazer?

The VECI label is in the engine compartment on the top radiator support, firewall or near the strut towers. Install the spark plug by hand using the spark plug socket and ratchet extension. Then tighten the plug using the ratchet, but don’t over-tighten it.

How do you install spark plugs on a 4.2L engine?

Install the spark plug wire, making sure the wire boot snaps in place over the plug terminal. If you have a 4.2L engine model, install the ignition coil over the plug and tighten the coil mounting bolt; then plug the coil electrical connector. Remove and install the rest of the spark plugs following the same procedure.

How to replace spark plugs on a Chevy Trailblazer?

How to Replace Ignition Coil/Spark Plugs on Chevy Trailblazer! – YouTube How to Replace Ignition Coil/Spark Plugs on Chevy Trailblazer!

How often should I change the spark plug on my Chevy Trailblazer?