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Before you go blaming the PCM, check your batteries. Low voltage makes many of the control modules do strange things. The electronic relays in GEM must need a certain voltage to stay open. The clicking relays is a sign of low voltage as well.
It could be as simple as low batteries. That wouldn't explain the phantom cranking, as none of the starter circuit controls go thru the GEM. Maybe you should keep that priest on retainer till you get it figured out.
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First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version  ), AIS, coolant filter w/"hokum" bracket, regulated return, heated mirror mod, lighted cupholder, Marinco heater plug-in.
Hard or no-start? Check Here
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