Ignition Coil Pack of 6 for Chevy Trailblazer Colorado Buick Rainier GMC Canyon Envoy Hummer H3 Isuzu Olds Saab L4-2.8L L5-3.5L L6-4.2L FITMENT: Sold in 6 packs. Please confirm the specific year and model of your car, then check complete fitment information carefully in more detail below. OE STANDARD: All the ignition coils are built to achieve or exceed OE specifications, subject to strict quality control testing. LONGER DURABILITY: High heat resistant compound for our ignition coil on plug boot to withstanding heat stress for longer durability. EASY TO INSTLL: These ignition coil packs are designed for quick and easy installation, drop right into the factory location. WARRANTY: Two-Year warranty offered with no hassle or questions asked. Meets or exceeds OEM specification Excellent mechanical stability and corrosion protection Direct fit application Lower fuel consumption and reduced exhaust emissions for your vehicle Ensures reliable voltage for smooth engine performance 2004-2005 Buick Rainier Ignition Coil L6 4.2L 2004-2006 Chevy Colorado Ignition Coil L5 3.5L 2004-2006 Chevy Colorado Ignition Coil L4 2.8L 2002-2005 Chevy Trailblazer Ignition Coil L6 4.2L 2004-2006 GMC Canyon Ignition Coil L5 3.5L 2004-2006 GMC Canyon Ignition Coil L4 2.8L 2002-2005 GMC Envoy Ignition Coil L6 4.2L 2006 Hummer H3 Ignition Coil L5 3.5L 2003-2008 Isuzu Ascender Ignition Coil L6 4.2L 2006 Isuzu i-280 Ignition Coil 2007-2008 Isuzu i-290 Ignition Coil 2006 Isuzu i-350 Ignition Coil Wells 2007-2008 Isuzu i-370 Ignition Coil 2002-2004 Olds Bravada Ignition Coil L6 4.2L 2005 Saab 9-7X Ignition Coil L6 4.2L Step 1 -Remove the fuel rails by simply unbolting the two bolts on the top, then gently pulling it up. Step 2 -Remove the bolts/connectors from the ignition coil in a numerical order. Step 3 -Repeat this step for each coil. Step 4 -Best to replace the entire coil pack as opposed to just one coil in order to avoid malfunctions in the future. The coils should snap into place. Step 5 -The coil bolts should be precisely tightened to 50 inch pounds. Step 6 -Using the palm of your hand, snap the fuel rail back into place and tighten the bolts around it. Have trouble to start the engine of your vehicle? Feel poor power when you drive the car? Faulty ignition coils affected fuel Economy? Vehicle Stalling, Engine Misfiring frequently? The engine light code in the combination meter will turn on? <span class="a-text-bold">Built At or Above Spec - </span>Been designed with precision, manufactured to the strictest OE standards or above, and subjected to rigorous safety and performance tests. <span class="a-text-bold">Efficiency, Reliability, and Savings - </span>Wide coverage across makes and models, quick and easy installation the first time for technicians, and product reliability and longevity for consumers. <span class="a-text-bold">First Time Fit - </span>No component leaves our factories without meeting the strictest standards and rigorous safety and performance tests.