Subaru Gurus Take A Listen
#16
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Join Date: Apr 2008
Location: Kahaluu, Oahu
Posts: 2,399
Car Info: 07 Sti
It wasn't engine knock. My passengers side rear cylinder wasn't firing. I had hand checked all my coil packs after I replaced my iacv, and the packs, and plugs all felt tight. However, while I was doing a compression test yesterday I noticed that coil pack wasn't on all the way. I pull the coil pack plug to find a tiny rock stuck in the plug. Removed it, reinstalled everything and she started right up no problems!
#23
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Join Date: Apr 2008
Location: Kahaluu, Oahu
Posts: 2,399
Car Info: 07 Sti
I unplug the coil packs and usually set them on my porch whenever I change plugs, I did it recently and that's the only way I could possibly think of how it got in there. What must have happened is initially it was making contact because my car ran fine after the plugs, but I don't think I was able to actually "click" it on, and it might have wiggled loose.
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