43 thousands of an inch
the vortec 4200 doesnt have an EGR system
First cylinder up front on the drivers side.
Under the motor cap that says 4200. Vortec it has a few bolts and a wire to the throttle body and a PVC for fuel so be careful it's easy it u make it hope it helps
The Air Intake Resonator box on a 2004 Chevy Trailblazer is located in the middle of the engine; It's marked with the "Vortec 4200" symbol on the top of it and is made of black ABS plastic.
replace water pump 2005 chevy trailblazer vortec 4200
According to www.VE85.com, the vortec 4200 inline 6 cyl engine is not designed for this directly. There may be a conversion for it, but it is not directly compatible and should not be attempted. This can damage the engine.
4200 Vortec Inline 6 cylinder engine #1 cylinder is at the front of the engine as you stand out front and look at it. Remove the resonator box on top of the motor to expose the coil packs. The spark plugs are under them.
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...
You must remove the plastic resonator box that says "Vortec 4200" on the top of the motor to see where they are. After you do that you will see 6 spots where you must unbolt the coil packs and lift them off the spark plugs. The spark plugs are down inside those holes. Use only AC Delco Iridium plugs. www.trailvoy.com
Classic symptoms of the Trailblazer Vortec 4200 Inline six cylinder engine with a dirty Throttle Body. www.trailvoy.com
The plugs run down the center of the engine under the coils. You can see the coils after you remove the resonator (Thing that says Vortec 4200)
It is on the intake air tube facing the firewall close to where the tube joins the Vortec 4200 resonator box. All the answers are at our enthusiasts website ........ www.trailvoy.com