10 June 2017 - Spark plug change-out

Replaced all of the plugs today.  I marked each of the plugs being removed to know which cylinder they were removed from...

 Pieces/Parts required for this job

•  magnetic swivel spark plug socket(Gear Wrench 80546)
• 16 spark plugs - part number LZFR5C-11
• die-electric grease
• spark plug gap gauge
• torque wrench

The plugs should be gapped to .043"

The die-electric grease is for the plug boots.

The torque for the plugs is on each box of the spark plug



First off, disconnect batter ground...

I usually wait about 30 minutes after disconneting power(its just what I do when working on industrial electronics).

If you know the hemi 5.7 firing order then you can keep up with what pieces/parts you are removing...

Heres an image of the firing order

It doesn't matter which side of the engine you start....

Each side is easily accessible...

The driver side cylinder one coil pack is somewhat of a pain...what I did to get to the fasterners;  I unbolted the air box(there is only one fastener holding that in place), disconnect the airbox to manifold hose and remove the air box assembly.  BTW there is a small hose that connects from the air box to the intake manifold, I disconnected mine at the airbox.

So basically, just disconnect the coil pack electrical connector, press down on the coil pack while loosening/removing the fasterners, carefully pull on the coil pack and out it comes.

I did this for each cylinder and marked each coil pack so I knew where it was installed...



...During the plug change...

I discovered that three cylinders have one of the two plugs with fouled threads.  I will contact the dealership and see what they can do...

Replacement plug picked up from local Auto store...

Original plug removed to show part number