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Old 03-21-2013, 03:47 PM   #1
dudeinmo
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Part Identification?

Can someone please help me identify this part?
The connection in the hole between the plug coils.?

2004 2.3L Engine.




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Old 03-21-2013, 04:20 PM   #2
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I believe that's the cylinder head temp sensor
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Old 03-21-2013, 05:03 PM   #3
dudeinmo
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The reason im asking is. My wife and I where out and about and out of nowhere the engine started to knock. Took it to shop today and he was looking at it and the rubber piece that seals this hole with wire through it was up and pushed it back down and stopped the knocking. I was scratching my head trying figure that one out.

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Old 03-21-2013, 10:34 PM   #4
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i mean, if the spark plug wire isn't installed properly, it will make kind of a knock. running on 3 cylinders.
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Old 03-22-2013, 06:49 AM   #5
dudeinmo
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The spak plug was my first thought as well and i check all of those , but this item between the plugs is what the mechanic pushed back down. Its running fone now, but it has me curious of what this was. I didnt thing about asking him what it was, i was in shock that it was fixed that easy.

I appriciate everyones help and thoughts.

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Old 03-22-2013, 08:50 AM   #6
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Without the engine temp sensor, the ECU won't give the proper fuel mix. I would think it would go rich though, not lean enough to cause spark knock. If so, you might've been hearing gasoline popping in the catalytic converter.

You have coil on plug ignition, but you can change the coil boots. It's very easy, and boots are available at any parts store $5-8 each. I had to change mine at 80k due to a small miss. If you change your plugs, then be sure to always use anti-seize. We had someone on this forum who never used it, and wore out the threads on one spark plug. Anti-seize should be available in the same aisle as RTV. I prefer to get a bottle of it instead of the little tubes. It's more cost effective. If you get it from a hardware store instead of an auto parts store- be sure to get the nickel based high temp variety, not the copper based.
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Old 03-22-2013, 09:19 AM   #7
dudeinmo
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So to answer my original question - the part is the engine temp sensor?


I already have new coil overs on route just as an upgade before this all happened.

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