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Starter Solenoid suppression diodes

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  • Starter Solenoid suppression diodes

    Hi All,

    I have an '85 Jeep CJ and recenty had the starter go out on me. After replacing the starter, it turns out the starter solenoid is also bad, I bought the part but the instructions said not to use this part on a vehicle with a computer since it does not have suppression diodes. I check out two other solenoids for my vehicle and one had the same note and the other didn't have any information.

    So my question is this, how can I tell if the solenoid has the suppression diodes? Or is this a non-issue with the primative computer on my '85 CJ?

    Currently the new part that I have is a Borg Warner S63 which looks nothing like the one in the Jeep now. If I can use it, the smaller terminals are labled "I" and "S". Which one gets the 12V signal from the ignition?

    Thanks in advance.
    1985 CJ7, Stock 258 I6, T5, Dana 300, Rubicon Express 2.5" ED Lift, Lock Right Dana 30 and Trac Loc AMC20
    "As far as my wife is concerned, the Jeep and I are the same, a work in progress."

  • #2
    Never heard of such thing honestly.

    You should be fine to use it the way it is. The "S" terminal is the one that gets 12 volts (with the key in the starter position) to engage the starter.
    95 YJ: 4.0, AX15, SOA, RE SOA Springs, 1" shackles, 1" body, SYE, locked 44, locked 8.8, high steer w/crossover, 37x12.5's on 15x10 beadlocks, OBA, winch, and a few other things. My Build Up Post -- Photos -- Jeep FAQ -- Mike