Keith Browning Posted April 20, 2008 Share Posted April 20, 2008 Well this is interesting and I would love to hear an explanation from someone who actually knows about this particular topic. I don't doubt you Jim but I would love to hear the "official" explanation from the horse's... mouth. If this is true, I wonder if there is any way to detect that it is happening. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted April 20, 2008 Share Posted April 20, 2008 Well this is interesting and I would love to hear an explanation from someone who actually knows about this particular topic. I don't doubt you Jim but I would love to hear the "official" explanation from the horse's... mouth. If this is true, I wonder if there is any way to detect that it is happening. Keith... remember, all I've done is make some bold assumptions.. It would be interesting to see the hotline notes for that one... Quote Link to comment Share on other sites More sharing options...
JFreund Posted April 20, 2008 Share Posted April 20, 2008 For James.... The injectors that this truck "ate".... did you have the opportunity to find out how these injectors failed? Was the failure electrical or mechanical? Open coils, perhaps? electrical,, buzz would get weaker after several wot,, Quote Link to comment Share on other sites More sharing options...
JFreund Posted April 20, 2008 Share Posted April 20, 2008 Originally Posted By: Keith Browning Well this is interesting and I would love to hear an explanation from someone who actually knows about this particular topic. I don't doubt you Jim but I would love to hear the "official" explanation from the horse's... mouth. If this is true, I wonder if there is any way to detect that it is happening. Keith... remember, all I've done is make some bold assumptions.. It would be interesting to see the hotline notes for that one... i'd like to see and hear the official end of it also Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted April 20, 2008 Share Posted April 20, 2008 Well, you reported that it fixed it so there must be something to it or maybe the ICP was having some funky reaction to the hydraulic pulses in the oil rail? Was this an engine with the ICP in the right cylinder head? /forums/images/%%GRAEMLIN_URL%%/scratchhead.gif Man, we come across some weird stuff on this site! Quote Link to comment Share on other sites More sharing options...
JFreund Posted April 20, 2008 Share Posted April 20, 2008 Well, you reported that it fixed it so there must be something to it or maybe the ICP was having some funky reaction to the hydraulic pulses in the oil rail? Was this an engine with the ICP in the right cylinder head? /forums/images/%%GRAEMLIN_URL%%/scratchhead.gif Man, we come across some weird stuff on this site! yes,, going thru valve cover into oil rail,, Quote Link to comment Share on other sites More sharing options...
TimB Posted April 23, 2008 Author Share Posted April 23, 2008 Well, I finaly found the problem. This truck eventuly got to the point where it would barely run. Finaly noticed small change in rpm signal and relative compression would error out with "unexpected rpm change". Removed engine and found crankshaft sensor tone ring seperating from crankshaft (as tony mentioned earlier). Tone ring will move back and forth approx 25 degrees independant of the crank. Thanks for all the help everyone! Quote Link to comment Share on other sites More sharing options...
Tony302600 Posted April 24, 2008 Share Posted April 24, 2008 /forums/images/%%GRAEMLIN_URL%%/thumbup.gif Quote Link to comment Share on other sites More sharing options...
Mekanik Posted April 24, 2008 Share Posted April 24, 2008 /forums/images/%%GRAEMLIN_URL%%/scratchhead.gif Man, we come across some weird stuff on this site! That is what is so great about this site. It's great when there is a truck in the shop doing one of these "wierd things". I'm glad the truck it fixed. ICP taking out fuel injectors... I would have never thought of that. /forums/images/%%GRAEMLIN_URL%%/scratchhead.gif Quote Link to comment Share on other sites More sharing options...
GregKneupper Posted May 2, 2008 Share Posted May 2, 2008 I had one of those do that to me a few weeks ago. First one I had that did that. Completly kicked my ass. Made me feel like I didnt know jack shit about fixing these trucks. Quote Link to comment Share on other sites More sharing options...
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