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Old 11-05-2006, 04:12 PM
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push button start question

I mounted a push button start button in the dash on my truck today,it has a 75 gm tilt column,I found the starter wire that i needed and wired the button in .hot only in start position works good,question is i have to hold key in start position and push starter button at same time . It would be a lot better to turn the switch on and push the button,how do i do that? we had an old ford truck years ago that started that way, thank you for any help you can provide.

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Old 11-05-2006, 11:14 PM
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Usually you have a constant 12v on one side of the push button and the out side goes directly to the starter solenoid. Did you splice the button inline by chance
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Old 11-06-2006, 12:41 AM
 
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Doc here,

First, Be sure the ampacity of your switchgear is capable of handling the task of energizing the solenoid..If not you may need a relay.

Second, Find a SWITCHED 12 volt source, on in "RUN" (heater or wiper fuse might be good if 25 to 30 amp fuse).Run a 12 or better 10 gauge wire. If you don't have that, or don't want to hack the harness, add a relay, thus:
  • Relay Coil#85 = To any fused switched source at the fuse buss over an amp. 18 gauge wire.

  • Relay coil#86 = to hard , properly bonded ground. 18 gauge wire.

  • Relay contact #30 to the Start Button 10 gauge wire.

  • relay contact #87 to the main terminal on the starter solenoid (battery cable bolt) Via a proper fuse link or MAXI fuse. 10 gauge wire.

  • Relay Contact #87a will not be used.



The other side of the push button will go to the neutral safety switch, and on to the "S" terminal on the solenoid.

Either configuration will give you an active pushbutton in "ON" only..and not when the key is off..a safe way to go.

Doc
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