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Discussion Starter · #1 ·
I crank up my truck I hear a tapping noise on the right side took the belts off an the noise still there anybody know where the noise could b comming from
 

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Divergent
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Does the noise go away after 30 seconds or so? If so, piston slap

Could be a spark plug that has backed out and is about to launch any second ripping all the threads of that hole with it

Could be a header leak

Could be. . . .
 

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AYHIN
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3,004 Posts
Does the noise go away after 30 seconds or so? If so, piston slap

Could be a spark plug that has backed out and is about to launch any second ripping all the threads of that hole with it

Could be a header leak

Could be. . . .
.... a bad lash adjuster.......

Take a length of heater hose and stick one end at your ear and the other can be moved around to locate where the noise is coming from. Go from there.
 
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