push button

My new 2017 Ford has a push button start and NO KEY. Its a Mustang. Have to press the brake pedal before the starter button will operate. Most of the other electronic stuff I have not learnt to operate yet ! Regards, Kevin.
 
53' Merc still had the starter button and key.
 

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The wiring diagrams for the Ford cars shows the starter solenoid wire going to an ignition switch starting in 1951 (and later). There are often errors in the wiring diagrams, but it would be odd for Ford to show the ignition switch connection if it was not implemented. Four connections are shown to the ignition switch: Gauges, Coil, BAT & Starter Solenoid. A starter button is not shown on the diagrams, just the ignition switch.

From the 1951 Ford literature posted by 5851a in post #4:
 

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Because this is not confusing enough I will say that the 51 Ford wagon had a starter button as it retained the earlier dash. I found a couple of pica but nothing bone stock enough to say for sure.
 
No, I have a friend with a 1948 Mercury sedan and it starts with a turn of the key, a factory Mercury set up.

I'm not familiar with the 1949 Fords but my thoughts are that they would start on the key just like the 1948 Mercury does. Not a flip of the ignition switch and push of the starter button.

I suppose what I meant to say was simply the last year for the push button start on Fords was 1948 and Mercury 1947. However, amodel25 states that his 49-50 Ford still starts on the push button.

i had a 51 merc with a push button
 
Should my car crank the engine over with the key in the off position or even out of the key switch entirely?
Having a no start issue and eliminated everything but fire. I can’t figure out how to do it. So I tried the key in out and off and it cranks in all positions but still won’t start
 

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Should my car crank the engine over with the key in the off position or even out of the key switch entirely?
Having a no start issue and eliminated everything but fire. I can’t figure out how to do it. So I tried the key in out and off and it cranks in all positions but still won’t start
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Should my car crank the engine over with the key in the off position or even out of the key switch entirely?
Having a no start issue and eliminated everything but fire. I can’t figure out how to do it. So I tried the key in out and off and it cranks in all positions but still won’t start

Keep in mind that cranking and starting are two entirely different circuits.
Start by testing for voltage at the coil with the ignition "on".
 
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