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Knock Knock....What's there???

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Old Dec 21, 2004
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Knock Knock....What's there???

So my 03 EX has what sounds like a really light knock when I rev the engine lightly. It happens when I rev it up to about 2K-2.5K and the revs come down. I hear the sound on the way down. It sounds like a really light knocking sound....like 3 or 4 knocks. It has been happening for awhile and my Honda store says they haven't heard it, but even my fiance who knows jack about engines has heard it. Is this something I need to be concerned about, or is it just a random annoyance?
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Old Dec 23, 2004
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Nobody has any ideas???
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Old Dec 23, 2004
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how many miles do you have on the car ?

It maybe time to have the valves adjusted.
if you hear knocking sounds it could be the valves.
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Old Dec 23, 2004
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I have around 25K-26K on it.
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Old Dec 23, 2004
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i had the same thing happening to my 03 ex. Just messin with it one day, i took off my short ram intake and it hasnt done it since. i dont know thats what fixed it or what, but that is one hell of a coincidence.
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Old Dec 23, 2004
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I think that somewhat normal, I have 43,000 on my 01 ex and i hear it. I don't think it's anything major, if it was youd know it. I would bet that if I stapped my car on the dyno it would still put power down like it was brand new. Any other opinions?
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Old Dec 23, 2004
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Just hit 40grand on the car. I also have the same prob. i was thinking that it was the valves also. Whats the price on adjustment for those ?
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