Early Bronco starter wiring diagram comparing original and mini…

Starter Wiring for original (swinging pole shoe) or PMGR (solenoid-type)
IF THE IMAGE IS TOO SMALL, click it.

To swap from old to new: the original (~4ga) cable is moved to the battery side (M1) of the starter relay (E9TZ-11450-B), and a new smaller wire (~14-8ga) is run from the relay output (M2) to the new starter S terminal. No other terminals on the starter relay should be moved, but the starter cable should be adjacent to the battery cable. Clean all the ring terminals and posts with a wire brush so they make good contact to each other.



If the PMGR starter was shipped with a jumper from the large upper terminal to the small terminal, REMOVE & DISCARD it.

Don't overlook the battery terminals. Not only will bad ones prevent a high-torque starter from putting out its max torque; they can cause a WIDE variety of other symptoms & problems.



See also:
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Owner caption May 2011 · Photo 35 of 198