MAYASAF Iridium Spark Plug and Ignition Coil Kit - 5 Pairs DW01659 UF303 Compatible for Chevy Colorado Trailblazer 2004-2006, GMC Canyon Envoy, Buick Rainier, Isuzu, Oldsmobile, Saab - Improve Engine Performance & Fuel Efficiency for Smooth Driving

Product Description

MAYASAF is an auto parts manufacturer and seller in the US that offers a wide range of replacement auto parts. We strive for excellence and believe high quality and a great reputation are crucial to our business. All of the auto-parts we offered are manufactured using the latest international equipment and state-of-the-art technology to meet OEM standards so you can replace your aging, worn out, or failed equipment with a direct fit solution. Whether you are putting the car up on blocks to do it yourself or looking to save money by bringing your own parts to your local mechanic, choosing MAYASAF will add life to your vehicle. Exact Fitment OE Supplier Manufactured Premium Quality Material Easy Installation 2003-2005 for Isuzu Ascender 2008 for Isuzu Ascender 2006 for Isuzu i-280/ i-350 2007-2008 for Isuzu i-290/i-370 2002-2004 for Oldsmobile Bravada 2005 for Saab 9-7x FITMENT APPLICATIONS: 2004-2005 for Buick Rainier 2004-2006 for Chevy Colorado 2002-2005 for Chevy Trailblazer 2002-2005 for Chevy Trailblazer EXT 2004-2006 for GMC Canyon 2002-2005 for GMC Envoy/Envoy XL 2004-2005 for GMC Envoy XUV 2006 for Hummer H3 How to Safely Change Your Spark Plugs and Ignition Coils? 1, Pop hood, and disconnect battery. Remove any intakes, covers, etc. until can see the ignition coils. 2,Going one cylinder at a time, unclip the coil from the wiring harness and remove any securing bolts.Pull up on the coil until it pops out. 3, Use spark plug socket to remove the old plug. 4, After checking the new plug’s gap, start hand-threading it back into place. 5,Once you’re absolutely sure you haven’t cross-threaded it, use your torque wrench to secure it. 6,Take the new coil, connects to the spark plug, and securely re-install it. 7,Screw the retaining bolt back in, once again starting by hand and finishing with the torque wrench. 8,Re-install any intakes, covers, etc. you’ve removed and re-connect the battery. When to Change Spark Plugs and Ignition Coils ? Engine misfire or backfireSlow accelerationPoor fuel economyTrouble startingMake less power or deliver it less consistently Generally, cars need new plugs every 30,000 miles or so, though some plugs can hold on for longer. Ignition coils, though, don’t have a recommended mileage or age. Some last for the lifetime of the car while others conk out after 60,000 miles.