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2011 Ford Focus
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Discussion Starter · #1 ·
Hi,

Changed plugs today and I was surprised to find clear water in spark plug wells 2 and 3 (did not appear to be coolant and not oil). I had no previous misfire and was just changing out of maintenance. I did this after driving in heavy rain last night and did also notice the rubber bulb (looks like a little boob) between the two was askew and not sealing. I placed back. The plugs and boots were also not corroded. The boob might be the problem but seems weird water would get there in the first place. I did just pick up the car from out of state.

Has anyone gotten water in the center wells and what was it? I think I'm ok, but want to know what to watch for.
Pic attached.

Thank you,

T.
 

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2013 Focus SE gray 5 spd hatch
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The previous owner may have washed off the top of the engine but since you drove thru heavy rain I'll bet some water splashed up from the underneath of the car and made it's way in the plug wells. Since the seal or boot wasn't in place the right way it would allow water to collect there. The boots are there for a reason.
What year and engine was this?
 

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2011 Ford Focus
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Discussion Starter · #5 ·
The previous owner may have washed off the top of the engine but since you drove thru heavy rain I'll bet some water splashed up from the underneath of the car and made it's way in the plug wells. Since the seal or boot wasn't in place the right way it would allow water to collect there. The boots are there for a reason.
What year and engine was this?
That makes sense. Just bought it so the previous owner was a dealer. It's a 2011. 2.0 duratec. It amazes me it was not misfiring.
 

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2013 Focus SE gray 5 spd hatch
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The water didn't enter the rubber part that actually slips on the plug so it did it's job by insulating it from moisture. If there was an imperfection in the rubber then it indeed probably would have misfired.
 

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2.5L '09 SE Coupe
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Rainwater won't make it up that far, unless you submerged the engine. The previous owner probably made the mistake of washing the engine off without going on a good hard drive afterwards. Just take it out on some backroads and get it nice and hot, should evaporate off. Oil in the spark plug wells is what you need to be watching out for.
 

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This Ford Transit has the 2.5L Duratec engine (very similar to 2.0L) but it has the same issue - leaked at the CHTS grommet - and you car probably has the same cause. The #2 and #3 spark plug wells are connected to the CHTS well.

Paul

 
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