When to change spark plugs on Chevy Trailblazer?
When to change spark plugs on Chevy Trailblazer?
If the engine IS NOT burning oil: You’ll be able to go almost 100,000 miles before its time to change the spark plugs in your TrailBlazer or Envoy. The spark plugs on your 4.2 Chevrolet TrailBlazer or GMC Envoy are made with platinum or iridium.
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 can I change the spark plug of a Chevy Trailblazer?
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.
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.
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.
Can you replace spark plugs in a Chevy Trailblazer?
A how-to video for replacing the spark plugs in a Chevy 4.2 I6 engine. Always use AC Delco 41-103s in this engine. Yes they cost more then the $1.99 Autolites at Walmart but using other plugs can wipe out the ignition coils. https://www.amazon.com/ACDelco-41-103… NOTE: The AC Delco 41-103s are pregapped from the factory.
