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P0503 Diagnostic Trouble Code Discussion for February 2010

VSS Circuit Intermittent

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Trouble Ticket Help Requests for DTC P0503
Help Request Posted
1999 Ford fLEETWOOD M/ 6.8L Cuts out VIN: 3FCNF53S1X
P0503: vss. Vehicle cuts out! Feels like a primary ignition problem. When it does do it the tachometer falls momentarily,it will only do it under a load between 2500 & 3000 rpm intermitently. I'm not able to duplicate the problem at a stand still under a load,vehicle ...
February 24, 2010