Horrible engine rattle at idle. What the heck? - Drive Accord Honda Forums | radio-pro.ru
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post #1 of 9 Old 03-13-2011, 12:26 PM Thread Starter
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Horrible engine rattle at idle. What the heck?

I searched, but couldn't find anyone with an issue similar to this one.

My 2010 Accord EX I4 5AT just started making a horrible rattling noise at idle while in gear. I just noticed it for the first time last night while sitting at a stoplight with the windows down. From inside the car, it's hardly noticeable, but from the outside, it's very loud.

I'll post a sound clip below, and if anyone has any ideas as to what it might be, please let me know. The dealership is closed today and the soonest I can get there is Tuesday, so I hope nothing blows before then lol.

The first part of the video is the sound while in Drive, followed by the sound in Neutral. It's still loud in Neutral, but it's hella loud in Drive. WTF? FWIW, the engine is fully warmed-up in the clip, and had been running for well over an hour.

The oil level is fine. The trans isn't slipping or anything. Trans fluid is fine. No CEL. The only thing odd that I've noticed the last few days is that the car feels a bit more sluggish than usual (my UltraGauge is showing slightly higher throttle percentages than normal for my driving style). Maybe it's the VTC actuator...

It's disturbing to me that a car with less than 12k miles would have a problem like this. That's almost unheard of. And it's not like I've abused it or neglected it. In fact, I just had it serviced a few months ago. And if flooring it once or twice per tank of gas is considered abuse, I give up haha.

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post #2 of 9 Old 03-13-2011, 12:46 PM

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I've noticed my coupe had a similar sound as well... and every couple of minutes i'll hear a "click"...

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post #3 of 9 Old 03-13-2011, 01:40 PM
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Have you done anything to the head, even spark plugs? Sounds like a horrible valve tap! Noticed you said its a lot worse in drive so maybe its something like a syncromesh issue?
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post #4 of 9 Old 03-13-2011, 01:42 PM
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This might help:

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post #5 of 9 Old 03-13-2011, 04:12 PM

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Originally Posted by Biggjimmy7 View Post
This might help:

My car is brand new... i don't think it's any of those..
I recall my new civic had that annoying sound too, but not as loud as the OP's.
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post #6 of 9 Old 03-13-2011, 04:13 PM
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Just take it into the dealer since you are well within warranty.

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post #7 of 9 Old 03-14-2011, 04:28 PM
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I think there's a TSB for this issue. Something to do with the cam.

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post #8 of 9 Old 03-15-2011, 06:16 PM
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OP so what was the issue?

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post #9 of 9 Old 09-04-2011, 05:10 AM
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I'm having this same issue on my 02 accord if anyone know what this is let me know
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