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Power Strokes
6.0 Tech
Alternator or.......?
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[QUOTE="kyle43335, post: 365035, member: 270"] turn the koeo. check circuit (I) its the light green with the red tracer. make sure it has battery voltage. this voltage is supplied from the ignition switch,thru fuse number 45 in the central junction box. it also goes thru the charge indicator bulb. the (A) circuit orange with light blue wire,is used for generator output. it to has a fuseable link(E). to check,run a hot wire from the battery post to the alternator plug. back blade probe the plug,and check your voltage. all the fuseable links i have mentioned can be found on the driverside battery terminal,about 4" down from the smaller red cable,that eyelets to the positive terminal. one common area of concern is the alternator plug. with the heat and vibrations,the female cavities tend to loosen up causing various charging issues. easy fix is either,change the plug,or use a scratch awl and squeeze the cavities down to tighten the connection. to check for this? start the truck wait until the alternator to start charging whatever it will. use a voltmeter.(NOT YOUR SCAN GAUGE) while watching your voltmeter,shake and bend,pull,and twist the wires around the plug area and see if the voltage jumps on the screen. one of these areas will be where your issue is laying. [/QUOTE]
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