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Old 06-24-2014, 06:25 PM   #1
keepbreakindown
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Water on ignition coil - cylinder 6

So last week my CEL went on with a misfire in cylinder 3. The #3 ignition coil boot was covered with a white residue. Just to make sure it was the culprit I swapped it with the ignition coil #2. The misfire followed to cylinder #2 so I got a new ignition coil.

All was fine till a few days ago. Same loss of power, but now the misfire was in cylinder 6. I checked the ignition coil and found water in the cylinder. I dried everything off, swapped #6 with #5 and drove around. It was fine for a few minutes but then the misfire followed to cylinder 5. When I checked cylinder #6 for any water there was some drops on the ignition coil boot. There's no mixture of coolant/oil.

Before I purchase another ignition coil, does anybody know where the water would be coming from? The other cylinders were dry. Does it sound like a larger issue that would be eating up ignition coils?

Thanks for any help
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Old 06-24-2014, 07:11 PM   #2
WDE46
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Maybe the drains for your cabin air filter housing are not working properly.

You mention white crust on the first one though and that strongly suggests coolant, though IDK how it would get to that location.
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Old 06-25-2014, 10:36 AM   #3
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This is a weird one.

Maybe leaking windshield wiper fluid?
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Old 06-25-2014, 11:26 AM   #4
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Sounds like a head gasket to me. Anyone?
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Old 06-25-2014, 01:34 PM   #5
keepbreakindown
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I thought about wiper fluid, too, but after I dried it out and took it for a quick drive I didn't use the wipers and there wasn't any rain to get in the air filter. When I rechecked the cylinder there was a little bit of water so it had to come from inside somewhere. I was thinking head gasket, too....but then I quickly ignored that thought. I'm not ready to accept that yet. Other sites were saying water around the ignition coil can be common and to use dielectric grease around the boot to fight it.

Thanks for the suggestions!
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Old 06-25-2014, 01:54 PM   #6
WDE46
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Water in the ignition coil wouldn't be caused by a bad head gasket. I really can't see how that would happen unless the gasket blew and the spark plug was loose.

I can't tell if you have your vocab wrong here. Are you saying there is water inside the cylinder, as in the sleeve that the piston slides up and down in, or are you using that as a term for the tube like area that the coil and spark plug are in? In which case, that's the head.
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Old 06-25-2014, 03:41 PM   #7
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Sorry, yeah I mean the head.
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Old 06-25-2014, 03:44 PM   #8
WDE46
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Okay, so did you check your cabin air filter draining? If you take a garden hose and spray that down with the hood closed does water end up all over your engine?
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