Torqued_Up Posted July 12, 2005 Share Posted July 12, 2005 I am working on a 2003 SD that just cuts out while driving. I am chasing down the VPWR circuit to the engine cause thats where I usually find a short. Anyway, the fuel heater is in this circuit and over the years I have found a lot of those rotted out and shorting on the filter or base. Long story short - it'sdifferent! When did this change type/style/ I am used to the flat plate type and this truck has a tube. /forums/images/%%GRAEMLIN_URL%%/shrug.gif Quote Link to comment Share on other sites More sharing options...
FordMastertech Posted July 12, 2005 Share Posted July 12, 2005 My 00 7.3 Excursion has the tube style. I am not sure when the change was made. I don't see too many of the old style flat plate design any more. FMT Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 13, 2005 Share Posted July 13, 2005 This job sounds familiar. I have come across the harness chafing on the valve cover at the 42 way connector where it droops down towards the fender well. If its a dirty truck the harness can wear on the valve cover if its touching and short out causing the `ol PCM reset. Don't forget the trans harness that drapes over the left shock tower too. It has a VPWR circuit in it as well. Quote Link to comment Share on other sites More sharing options...
snw blue by you Posted July 13, 2005 Share Posted July 13, 2005 I have also seen this happen due to chaffing or rodent damage at the IPR connector. The circuit shorts on the IPR body and causes the fuse to pop. I can't tell you how many nests I've seen in the valley , but it's alot. Kinda falls along the lack of maint. issue. /forums/images/%%GRAEMLIN_URL%%/poke.gif Quote Link to comment Share on other sites More sharing options...
sixturbosix Posted August 14, 2005 Share Posted August 14, 2005 I had one that shut off perodicly and refused to start sometimes.Wire chafe at air intake bracket bolt.Short to vref and can't set a code.Brown and white wire I believe. Quote Link to comment Share on other sites More sharing options...
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