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Remove the air box on the top of the motor that says Vortec 4200. Remove the bolts for the affected coil pack and lift it off. Unclip the connector and replace.
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∙ 15y ago
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Coil pack or spark plug on 2004 Chevy Trailblazer?
spark plug
Where are the spark plug wires 2004 trailblazer?
The 2004 Trailblazer does not have plug wires. It has a coil pack per cylinder that connects direct to the spark plugs.
How do you change the coil pack on a 2004 Lincoln Navigator5.4L engine?
Very carefully.
Where are the spark plugs in a 2004 Chevy Trailblazer?
under the resonator air inlet box. on the valve cover youll see the coil packs. remove the single bolts. pull up the coil pack until the boot clears the valve cover. change plug. reinstall the coil pack and move on to the next. easy. can be done in 30 minutes.
Where is the coil pack on a 2005 Chevy Trailblazer?
The 2005 Chevy Trailblazer has Coil-On-Plug ignition coils so there are 6 "coil packs". Each one is mounted on top of the spark plug.
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How do you change the plugs on a 2004 chevy trailblazer?
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...
What is a coil pack on a car?
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Change coil pack 2002 Chevrolet trailblazer what is cylinder number 1?
On the 4.2 L I6 the very front of the engine is #1 and the last in the back is #6
Your 2004 Chevy trailblazer is stalling when the air conditioner is on?
I had the same problem then I installed a new coil pack....... Problem fixed :). U can find a coil pack for approx 100 and youtube it for instruction to install will save ya some $...... U can also youtube a way to find out which one is bad.
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Click the link.
How do you test a coil pack on 2002 trailblazer?
Pull each coil plug off one at a time while the engine is running... The coil pack that is bad will NOT have a difference in engine noise, but the ones that are good you will hear a slight decrease in engine noise when you unplug the coil and then plug it back up again... Hope this helps everyone!
