E150 Chassis, Frame, Motor Grounds
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E150 Chassis, Frame, Motor Grounds
Hi Ford Family, I have an E150 from 1991 which showed diagnostic error codes which finally turned out to be a bad PCM; but the reason the PCM had problems was almost without a doubt bad grounds in general. PCM connector #46 went to a burned out circuit trace on the PCM board; circuit 359 Gray/Red wire, named SIG RTN. It was probably overloaded due to bad grounds on the PCM case and elsewhere. Can anybody tell me where the chassis, frame and motor grounds normally are found on the E series vans? Thanks.
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