Josh Posted August 19, 2013 Share Posted August 19, 2013 this is my personal truck 2005 with 203,000 miles,studded, warren injectors, lots of stuff done to it. ect,ect... been noticing a noise when warm for like 2 months, intermentally. and it goes away. well this weekend I pulled out into the road half throttle, and let off and it was the loudest ive heard it. it went away after a few seconds of idle. its not a knock, its like a chirp/tap. it comes and goes only when warm. im thinking lifter? its runs great. new oil cooler in December 2012, new ipr a few months ago because it had a hole in the screen. what do you guys think? im going to pull it soon. Quote Link to comment Share on other sites More sharing options...
Aaron Posted August 20, 2013 Share Posted August 20, 2013 I think you're right, unfortunately. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted August 20, 2013 Share Posted August 20, 2013 Oil analysis, Napa/Wix PN 4077, $14. Quote Link to comment Share on other sites More sharing options...
Josh Posted August 21, 2013 Author Share Posted August 21, 2013 I hope the the internals are ok, going with a billet cam and new lifters, possibly new pistons coated and springs/pushrods. Quote Link to comment Share on other sites More sharing options...
Jeff Clyde Posted August 24, 2013 Share Posted August 24, 2013 have you replaced the STC fitting ? Have had a couple that were worn enough that would allow the branch tube to flex and hit the rear cover. Not saying it isn't a lifter, but have had these create some interesting harmonics intermittently. Either way, if you havn't replaced it, I would do it while you are in there. Quote Link to comment Share on other sites More sharing options...
DwayneGorniak Posted August 24, 2013 Share Posted August 24, 2013 Lifter scoring a lobe on the cam. Seen all too many. Quote Link to comment Share on other sites More sharing options...
leavnon3rd Posted August 25, 2013 Share Posted August 25, 2013 I'll also lean towards a lifter knocking on the cam. My BBC took a wheel out last year its the sound of $$$ Quote Link to comment Share on other sites More sharing options...
Josh Posted August 26, 2013 Author Share Posted August 26, 2013 new pump two years ago with stc Quote Link to comment Share on other sites More sharing options...
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