no spark from the coil, or the icm, or plugs are shot or plug wires, no fuel,no shark no start
The 2004 Trailblazer does not have plug wires. It has a coil pack per cylinder that connects direct to the spark plugs.
( .054 inch ) according to www.motorcraft.com
Yes , its EDIS ( Electronic Distributorless Ignition System ) so it should have spark plug wires ( I believe in 2000 the 4.6 L went to Coil On Plug - C.O.P. )
No.
Remove the spark plug wires from the spark plugs, use an extension for your Allen wrench, and use a spark plug socket to remove the spark plug.
mike
Spark Plugs, Spark Plug wires, PCV Valve
Only on the 4.2 liter V6 engine , the 4.6 liter and 5.4 liter are Coil On Plug ( C.O.P. ) ignition
Disconnect the battery, remove the spark plug wires and boots, and remove the old spark plugs. Toss out the old spark plugs, put in the new spark plugs, replace the spark plug wires and boots, and connect the battery.
The spark plug gap is .054"
The spark plug gap is .054"