it almost sounds like valvetrain typewriter tick but it kinda sounds like its coming from the driver side rear and i dont always hear it. it speeds up a little with speed but it doesnt slow that much during idle so im not lead to believe its the springs making extra noise cuz i can hear that too which isnt a problem. it also isnt heard all the time. sounds like my fuel pump is going. is it time for an inline 255?

 

buuuuuump

 

hum... my 5.3 makes some noises.. so i turn the radio up.. hahha
i got the piston slap or typewriter synd.. or something... but she is still running strong, till the day she dies.

 

thats how i feel about it. the typewriter sound is just from the stiffer springs. i think piston slap would sound more clunk or knock like you know? im not gonna start replacing things unless i know its broke though so ill just keep on listening