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Out of curiosity's sake, where are the spark plugs on the 2.2L ECOTEC I-4? I know there has to be spark plugs on it or else the engine wouldn't run, and GM's new engine without spark plugs isn't out yet, but my dad keeps saying that he doesn't see anything that even vaguely resembles a spark plug.



Are they covered by the black covers on top of the engine?
 

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Those four black plastic objects are your coil packs. Each spark plug has it's own coil pack (which is new for the 2007+ 2.2 Ecotecs, where the older ones shared a coil pack for every two spark plugs) Unscrew the little bolt next to each one and then just lift them up and you will see the spark plug. The good thing about having coil-on-plug is that you never have to get or worry about spark plug wires for it.

Just a note, that top part being aluminum (I think it is anyway) never unscrew those bolts or anything else for that matter while the engine is the slightest bit hot. It looks to be a soft metal and might mess up the threads.
 

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Thank you for this thread! I needed a gut busting laugh. :D
 

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Discussion Starter · #4 ·
Those four black plastic objects are your coil packs. Each spark plug has it's own coil pack (which is new for the 2007+ 2.2 Ecotecs, where the older ones shared a coil pack for every two spark plugs) Unscrew the little bolt next to each one and then just lift them up and you will see the spark plug. The good thing about having coil-on-plug is that you never have to get or worry about spark plug wires for it.

Just a note, that top part being aluminum (I think it is anyway) never unscrew those bolts or anything else for that matter while the engine is the slightest bit hot. It looks to be a soft metal and might mess up the threads.
Yeah, that's what I thought. Thanks!
 

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Those four black plastic objects are your coil packs. Each spark plug has it's own coil pack (which is new for the 2007+ 2.2 Ecotecs, where the older ones shared a coil pack for every two spark plugs) Unscrew the little bolt next to each one and then just lift them up and you will see the spark plug. The good thing about having coil-on-plug is that you never have to get or worry about spark plug wires for it.

Just a note, that top part being aluminum (I think it is anyway) never unscrew those bolts or anything else for that matter while the engine is the slightest bit hot. It looks to be a soft metal and might mess up the threads.
That top part is aluminium but that isn't what the spark plugs are threaded into. They are threaded into the big hunk of aluminium (head) that is underneath :D But you are definitely correct to not touch them hot - this is never good. Plus it's a pain to handle them when you get them out, hot potato hot potato!:lmao:

And Rudolf Diesel made an engine without spark plugs many many years ago :D



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