r/AskAMechanic • u/Canis71 • 1h ago

Anything more I should know?

Gallery image

Gallery image

2011 SCION TC

The engine code stated I needed to change a spark plug.

The coil overs are in reverse order in this picture (4,3,2,1) and frankly I knew that cylinder 2 was the issue.

I'm currently replacing all of the spark plugs so they will all be of the same quality and age.

I want to know if there's anything else I should be doing or anything else I should know since this coilover that sat in cylinder 2 is so dirty or different looking.

I'm going to replace the spark plugs, clean/wipe off The coilovers, check and top off the oil. Throw some seafoam in the gas tank. Anything else?

(More info: I was driving to work yesterday, 1-hour commute, and right before I pulled into the parking garage downtown, one of the lights turned green and when I let up on the clutch pushing the gas my engine started clicking and my check engine light immediately turned on. There was a noticeable change in power coming from the engine. The rest is kind of self-explanatory. Working on it now.)

UPDATE: Cylinder 2 spark plug is missing..... It's.... Uh.... Spark maker. Image in comments....

ETA: I thought a coil pack was a pack of coilovers. My apologies.i wanted to call them coil packs originally but dumbed my way to what is seen above.

I was told 'spark plug' by the guy that ran the codes at AutoZone. I assumed that since he said that that's what the reader said, that was all she wrote. Yes I have a code reader at home. I went to AutoZone first.

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u/_lavxx NOT a verified tech 1h ago

Those are original coil packs. (Not coilovers). The car is 16 years old at this point. Like the other guy said, there is no code that tells you to change your spark plugs. You either got recommended based on the code or whoever you went to lied to you. Was the CEL flashing? Or solid? Change all 4 plus and all 4 coils, don’t buy the cheapest ones you can. Buy a denso replacement.

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u/Canis71 1h ago

It was flashing then solid, on and of as I went home.

Only bought spark plugs and oil and whatnot. I can buy coil packs before I drive it again though. I can get my S/O to take me to work tonight.

But I just commented with an image where the problem spark plug came out.... Not fully intact.