Question about 2000 Ford Ranger SuperCab
Everytime I put a 50 amp fuse in position #5 and turn on the key the blade fuse burns out is it the starter relay, ignition switch, starter or just something else all together
Try disconnecting your alternator temporarily. It may have a shorted diode but that would also normally drain the battery too unless it charges over a relay.
The starter relay can't cause this alone and the currents through the ignition switch mostly control relays. If removing the alternator cable didn't work, I would remove the starter (only a few bolts) after disconnecting the ground cable from your battery and try turning it by hand. It should be stiff but not impossible and if it refuses to turn, it may have a short from the field to the case. It isn't really possible to use a multimeter to check the starter's windings because they are very low resistance when normal (the beast draws 120-200 amps to start) and would look like shorts on a standard meter anyhow.
Posted on Sep 27, 2008
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Posted on Jan 02, 2017
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