rodgeevans Posted November 12, 2012 Share Posted November 12, 2012 (edited) After searching the forums and online i cannot find anything that matches my symptoms. On tick over the engine sounds fine. However when accelerating at around 2500-3000 rpm there is a knocking noise that occurs after this it is not present from what i can hear, i cannot tell if it is something loose, something knocking against something else, engine knock, standard spark knock or just flywheel chatter. i have removed the strut bar air box engine cover to see if this stopped it but no joy i have felt the fuel pressure reg for pulsing and cant say i noticed it pulsing and i have checked oil. I have fitted a plenum spacer vs stack mod ultra lightweight flywheel Exeddy clutch Up rev and always run on premium any suggestions am i worrying over nothing, do others have this with anything i have fitted. Edited November 15, 2012 by rodgeevans Quote Link to comment Share on other sites More sharing options...
glrnet Posted November 12, 2012 Share Posted November 12, 2012 Have you checked both fuel regulators? Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 12, 2012 Author Share Posted November 12, 2012 No only the one top drivers side of the plenum. But as i can only get the noise to occur whilst driving i dont know how to replicate it on the drive. I will search for the other fuel regulator, is it easy to get at. Quote Link to comment Share on other sites More sharing options...
S1 HNK Posted November 12, 2012 Share Posted November 12, 2012 (edited) As far as i'm aware the fuel regulators dont knock its more of a tick. Best thing to do is put a video up, it may help the guys in the know shed some light on it. Edited November 12, 2012 by S1 HNK Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 12, 2012 Author Share Posted November 12, 2012 ok i will try record it on the way home tonight, if not i will get the camcorder out and try Quote Link to comment Share on other sites More sharing options...
glrnet Posted November 12, 2012 Share Posted November 12, 2012 It is more of a ticking noise usually, the other one is at the rear of the engine, quite near the throttle body as I recall. Quote Link to comment Share on other sites More sharing options...
ewan221 Posted November 12, 2012 Share Posted November 12, 2012 Does it knock if you rev car to 3000 at standstill or only when moving ? Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 13, 2012 Author Share Posted November 13, 2012 Right i have recorded a video but need to test the sound quality, what do people use to upload video?. The noise is only present when moving and i can not get the noise to occur when stationary. Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 15, 2012 Author Share Posted November 15, 2012 right here is the best i could get with my phone hopefully you can hear it clear enough. So if anyone has any ideas what it is or if it nothing please let me know Quote Link to comment Share on other sites More sharing options...
jonst205 Posted November 15, 2012 Share Posted November 15, 2012 So that's what a (nearly) full fuel gauge looks like! Noise doesn't sound good, but I don't think it could be internals just in that specific rev range. I take it oil pressure is still fine? Hopefully a heatshield or similar resonating. You really need to pin down the location of the noise as difficult as that is if it only occurs while moving. Quote Link to comment Share on other sites More sharing options...
M13KYF Posted November 15, 2012 Share Posted November 15, 2012 i would recommend you get Abbey to have a look at the video to me it sounds too slow for internals, sounds more exhaust, perhaps manifold. I'm no expert Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 15, 2012 Author Share Posted November 15, 2012 Cheers guys, yeah the only way i can think to pin down the area of the noise is putting it on a rolling road it sounds like it coming from front N/S which is why i removed airbox and put a cone on it it to check, well i hope you guys are right and its not internals i was convinced it was the engine knocking on the strut bar due to the plenum spacer but then i removed that and the noise was still there im really puzzled. Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 15, 2012 Author Share Posted November 15, 2012 So that's what a (nearly) full fuel gauge looks like! Noise doesn't sound good, but I don't think it could be internals just in that specific rev range. I take it oil pressure is still fine? Hopefully a heatshield or similar resonating. You really need to pin down the location of the noise as difficult as that is if it only occurs while moving. Lol this is actually how mine looks when full another strange one Quote Link to comment Share on other sites More sharing options...
Ebized Posted November 15, 2012 Share Posted November 15, 2012 what are you saying is strange with your fuel guage? If its the fact it's gone past the full mark - that was the same on both my previous 350's Quote Link to comment Share on other sites More sharing options...
rabbitstew Posted November 15, 2012 Share Posted November 15, 2012 The fact that its only doing it when you rmoving would lead me to suggest the engines fine, its something vibrating at that particular rpm. Ive had similar problems before and they are a nightmare to try and identify!!! So good luck!! Quote Link to comment Share on other sites More sharing options...
rodgeevans Posted November 15, 2012 Author Share Posted November 15, 2012 what are you saying is strange with your fuel guage? If its the fact it's gone past the full mark - that was the same on both my previous 350's Oh right i had asked in the past and no one seemed to have seen it before or maybe not that extreme, maybe they just dont fill up the tank, i think i was even accused of doctoring the photo at one point by someone. but least it just not me. yeah to be honnest the car seems fine, its just annoying, and obviously if it was anything serious best to fix it early before the cost of repairing it goes thru the roof. and would rather work out what it is before splashing cash on more parts, tyres and paint Quote Link to comment Share on other sites More sharing options...
ewan221 Posted November 15, 2012 Share Posted November 15, 2012 Sounds a bit like manifold gasket or possible loose spark plug/coil pack. Quote Link to comment Share on other sites More sharing options...
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