Remove the air chamber labled Vortec 4200, two bolts on left side, and loosen the hoses on both sides. No cables!, remove bolts of each coil pack and plugs are below...
AC Delco Iridiums
remove and replace engine coolant temperature(ect)/chevy 2004 trailblazer
follow the plug wires they are on the heads
Seeing as your not that savvy.. take it to a 'lube shop let them change your oil
see "how too replace water pump on 2002 Trailblazer"
Where is the starter on a 2004 Chevy trailblazer.
The 2004 Chevy Trailblazer holds 7 quarts of oil.
If your Chevy trailblazer 2004 gauges are not working, check your fuel pump.
where is map sensor on 2004 trailblazer
Trailblazer enthusiasts will cover all the subjects including brake jobs at www.trailvoy.com
I need a diagram for the vacuum lines on a 2004 Chevy trailblazer
Visit www.trailvoy.com for a complete answer to the fan clutch change with pictures.