99 5.4l triton knocking
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99 5.4l triton knocking
today i started up my 99 f150 xcab 5.4l everything was fine. drove about 3 miles and notices a knocking noise. pulled over and it stopped. reved the motor to 2krpm and it started knocking. i took some footage wondering if anyone could help me out with this... greatly appreciated
http://www.youtube.com/watch?v=0FnKH...TGXH60&index=3
2k rpm
http://www.youtube.com/watch?v=3mLop...TGXH60&index=2
idel
http://www.youtube.com/watch?v=yl8Kj...TGXH60&index=1
revving
http://www.youtube.com/watch?v=0FnKH...TGXH60&index=3
2k rpm
http://www.youtube.com/watch?v=3mLop...TGXH60&index=2
idel
http://www.youtube.com/watch?v=yl8Kj...TGXH60&index=1
revving
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How many miles are on it? What oil? Second video sounds like a rod bearing. Others sound like an exhaust leak. Ive had manifold leaks on both my trucks. When they leaked, you couldnt tell the studs were broken and there were no signs of a leak. They can sound like a slapping sound as the gasket is flapping around, but... it's normally more metallic sounding and not so pronounced. Ive also had bearing failure and timing chain guides that went bad. Mechanics stethoscope will help pin point where it is.
Last edited by Toyz; 07-15-2011 at 06:52 PM.
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