It currently only does it once in a while but its right after you turn the starter but right before the engine catches and runs on its own. Kind of sounds like the gear on the starter maybe some of the teeth are worn or something, I don't know. Any ideas what could cause this or has this happened to anyone else. Once again its an 06 ex sedan with a manual tranny.

 

Sounds like maybe the starter solenoid is going bad. When they go bad the starter gear doesn't dis-engage or dis-engage quick enough.

 

Is replacing the starter soloniod easy to do yourself or have to take to a shop? Is the part expensive? sorta REALLY tight on money right now but need car fixed to get to work.

 

It's not really hard to replace. It's usually harder to actually get to and remove the starter assembly.

Your starter solenoid is #8: http://www.hondapartscheap.com/parts...otor-denso-18l

 

I have a similar issue in my new Si and have found the culprit to be the VTC Assembly. This seems to be a common issue with DOHC engines of all sizes. I found the video below of someone having the same issue that produced an identical noise to what I was experiencing. Hope this helps!

 

Mine has done this two or three times but only when cold... during warm weather it doesn't do it at all. Weird!

 

My 2013 Civic Si has done it since 1k miles or so... pretty sad they haven't fixed it even though there is a bulletin. I guess it is a trip to the dealer for me for some warranty work...Thanks for posting PainlessCandy!!! It has been delaying me getting the Kraftwerks Supercharger on...

 

Do you have the link for the bulletin? I have not seen one for the 2013 Si, but have seen many different bulletins for older DOHC engines.

From the research I have done, it seems this is a common problem to have with many DOHC engines in any size that is utilizing the VTC technology. In fact, I have found that almost every DOHC engine on the market (even from other manufacturers) uses similar technology now. Below is a quick video I found on how it works and what is inside (video is for a Toyota engine, but the part is nearly identical between manufacturers).


From what I understand, the pin inside locks the VTC in the fully retard position while the engine is turning over and is what causes the rattle when the cold, syrupy oil doesn't fill the cavities inside fast enough. It doesn't seem to be a big issue to most mechanics, or even the Honda techs, but I have seen reports that over time this problem will cause your timing chain to stretch, which would obviously destroy your engine. I am not sure what the fix for this is, but I will be back with more information when I get it fixed on my car.

 

If it is the VTC gear, it's only been and issue on 08+ accord at our dealer...so far. GL