2003 Mustang Gt 4.6 - Knocking/rattling Noise @ Startup & Higher Rpms

Discussion in 'Other Auto Tech' started by Quick03GT, Jun 7, 2014.


  1. Quick03GT

    Quick03GT New Member

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    ok here is the issue, in the mornings or when i let the car sit for awhile i go out to start the car up it makes a loud knocking noise then goes away, but when you raise the engine rpm up to about 1,500/2000 rpm the knocking get's louder sounds like it coming from the passenger side of the car.

    I have already replaced the timing chain guides, tensioners, etc.
    I have already unplugged each injector the noise does not change or go away
    It sounds like its coming from the front of the car right by the timing chain cover and the valve cover.

    This noise happened out of no where going home from work and started making a noise, sounded like it was low on oil but that was not the issue.


    The car is not blown or has any kind of power adder of the sort. it's pretty much a stock engine with about 180,000 miles..

    any kind of help or what to look for would be appreciated!
    thank you in advance..

    p.s. if a video would help please let me know
  2. Quick03GT

    Quick03GT New Member

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    here is the video of the noise..

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