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I was lucky because I was just pulling onto my street when I had two cylinder misfires occur. Code reader said Cylinder 1 and 4 and I also go the random misfire code. I also got the ECT2 circuit too high code as well. When i checked my coolant after it cooled down the tube in my overflow had fallen off into the reservoir and under the radiator cap it was no long up to the brim. When I added coolant I say I was down about 100 mL. Still I think I had an overheat situation. I'm in Halifax Canada so it doesn't get too hot here but we just got into the warmer summer days. Anyhow, I strip apart my engine because the Hybrid has 8 coils and 8 plugs and the back four are pretty hard to get at without stripping everything apart. Ignition coils in the back for Cylinder 1 and 2 broke apart when I tried to remove them. I will have to get one of those ignition coil extractor pliers for future use.
How much grease if any are you guys putting on your ignition coils?
Two years ago when I replaced all 8 Honda ignition coils. I put a very small amount of anti-seize on the plugs (they came out easy twice now since owning the car). I believe I used a tiny amount of dielectric grease on the ceramic portion of the plugs. Not a lot.
My question... I know I will be back in here in two years to replace these ignition coils. If they are only 20 bucks (amazon) then I don't mind replacing them on a regular basis to extend the life of the vehicle. What I was thinking of doing is putting the Orange Silicone Brake Grease (rated for -60C to 2000C and doesn't melt around the red boot of the connector. It won't sink down into the engine because the plugs are there. The stuff does not melt or boil according to the spec sheet. I think it would be fine to put a dab of it down in there around the red part of the boot. Can I get your thoughts on this? These are not my original Honda Ignition coils. I replaced the Honda OEM ones just two years ago with Amazon ignition coils (search HARUMA UF374). Honda wants $263 dollars per coil where these were just $20 dollars. I had a broken bolt in my engine case. The one that sits directly behind the timing chain. I feel this might be part of my overheating issue in this area of the engine. I am waiting on "Easy Outs" to remove the broken portion of the bolt. Picks that I used to fish out the remaining stuck boots of the ignition coils. Took a while. You have to get the boot to turn around with the pics and then they are easier to fish out. Overall look of my engine as it stands while i'm waiting for my parts. At this point I still had 12 V connected so I could verify with a test light that I was getting proper voltages to all ignitition coils and ECT2 sensor.
The car has 370,000 km's on it. I replaced all 8 sparks plugs twice already this will be the third time. I am going to be using new Ruthenium spark plugs. They supposedly have lower heat output which I think could be better for engine and my stuck coil issue.