Take 2 wires you removed from old switch and place on new switch. With only 2 wires, it doesn’t matter which one goes to either terminal.
SOURCE: 1984 Ford F150 Solenoid
small wire with boot goes on the s stud for starter. need to buy relay from a better part store like napa
SOURCE: terminals on GMC 1989 replacement starter
your new starter should have a S and a R terminal and also a large terminal thats for your main power . funny thing is im having starter problems with same truck man.
SOURCE: I can't get the positive battery terminal cable
Just cut both battery cable's right at battery cable's terminal, and replace both terminal with new one's each one about $2.00's.
SOURCE: Wiring diagram for a electric coolant fan switch,
power from fused supply to motor then the earth back to switch in the rad ,make sure the rad has a good earth as well from a fixing back to the - on the battery ,it would surprise you how many had this problem years ago
SOURCE: how to wire a harry moss air horne relay to
If the compressor has 3 air connections on top then the two lower terminals with nuts are the + and - supply inputs to the compressor motor. The two top spade terminals power a solenoid valve which changes a triple sequence (illegal?) to a combined blended triple tone. I don't think polarity is an issue but to check this connect a 12V battery -ve to the mounting bracket on the compressor. Attach 2 wires to a headlamp bulb and connect one to battery +ve. Then touch the spare wire to each of the 4 terminals in turn. If the bulb lights that terminal is at compressor ground. You can determine the operation of the relay in the same way. Between 2 terminals the relay will operate. Note those and then test each to the relay bracket to see if one side of the coil is grounded. By powering the relay directly from the battery you can then use the bulb to determine which contacts are 'made' when the relay operates. You will need a relay to control power to the motor. The solenoid valve probably only takes a couple of amps. You could run both the motor and the solenoid valve from the same relay if you just wanted a blended composite tone.
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