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Re: 1999 F150 Mechanical 4WD axle does not engage
Posted to Technical Discussion Forum on 10/17/2017

Back at this failtrain. Used GEM is installed and no love. I didn't write down exactly what was going on before with the old GEM and the grounds, so I'm not sure anything has changed, but I think so.

Key off engage solenoid has 1743 ohms to ground, disengage ... Login to read more.