How do you change plugs in a 2005 Chevy Trailblazer?

Answer 1

If it is the six cylinder version it's a little tough. I changed the plugs in a 2004 this weekend. Remove the air box on top of the engine, disconnect the band clamps that hold it to the hoses, remove the two little hoses (the one on the right and the one underneath on the left), once that is removed you can start on the plugs. There are 6 power packs in a straight line. I didn't unplug the power packs, I loosened the bolt holding down the power pack, the bolt won't come out it has a set so it doesn't fall somewhere ;o), raise up the power pack carefully with the gasket and there is the plug, you will need various sizes of extensions for your ratchet and plug socket, the plugs are down inside the hole, once the plug is removed be careful not to drop it back in, (they are hard to get a hold on ;O( ), repeat the process on all plugs one at a time, as you replace the plug be careful and make sure your plug boot goes back over the plug correctly, don't let any dirt or trash get in the holes while you have them open.