98 4.3l Engine Has A Tapping Sound
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6.4l Idle Noise - YouTube
Ticking, knocking noise complaints: ford 4.6l / 5.4l 3v engines 6.4l idle noise 4.3 engine noise
Suspicious engine noise, 2006 ford 4.6 3 valve 198k miles
(solved)engine knocking or tapping sound that varied with rpm .
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