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I'm new to the forums and bought an 04' Mustang GT, It has 39k on it and is making a strange noise.
From a cold start, I can rev the engine without the sound being present, however when I start to drive, there is a "put put put" noise that comes from the drivers side, almost seeming to come from behind the firewall. It is present in all gears and is more pronounced with increased depression of the gas pedal. The noise seems to be louder at lower RPM's (Around 1.5k). At higher RPM's the noise is present, however is faster and less apparent. I have spoken to a friend and he seems to believe that it is not an exhaust leak or more problematic noise like a thump, or tap. Lastly the noise isn't audible listening to the engine with the hood popped and only seems to be heard while inside the car.
Any thoughts? Any help is appreciated. I will try to upload audio asap.
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I say this every time, but it sounds like a sparkplug is about to backout i.e it is rattling around loose. Would be weird i think you have the improvised head with 8 threads. If its not that it is most likely valvetrain. A lash adjuster or cam follower, you'll probably have to pull the head, i'd check plugs first. Once the video is up we'll probably be able to tell you better. Where at in Maryland?
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The first one is a 5.0 which is a pushrod, no cam in head like your car.
hmm could be the plug but thats not too common on the 04s, i hope its not a rod knock or a bearing.
I'm not too far, right near hagerstown.
My car actually blew out a plug, it cost me $30 to fix but about 8 hrs of labor,(maybe more) i think shops on average charge a few hundred (no more than $400 i believe) 2-300 i think?
For some reason when i clicked the 2nd video my sound cutoff so i couldn't hear the third, i'll try to re-start and come back.
As far as engine damage the head may be damage but it may be repairable. Thats if it is the plug.
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Last edited by SVTeeshirt; 10-03-2009 at 01:54 AM.
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Engine Noise, Need Advice!
,FRPP 4.10 gears, Steeda Tri-Ax shifter, 315/35/17 Nitto DRs --- Vortech V1 S-trim @ 10 psi --
