68 xr7 engine not cranking

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Fabien
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Re: 68 xr7 engine not cranking

#11

Post by Fabien » 15 Apr 2019, 12:55

I found a pix with ignition switch contact, so I have checked contacts between A and C, contact is ok... have sens because when i turned key in this position all light and instrumentation works.... now, the one that i am interrested, contact between A and S (key in start position), contact is not ok... it will explain why car is not cracking.
Assuming that i have the good wiring diagram and i am testing right.
So if this test is good, the ignition switch is bad..

Can somebody confirm if i ma doing right ?
Startcircuit.jpg
Startcircuit.jpg (56.34 KiB) Viewed 92 times

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Royce
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Re: 68 xr7 engine not cranking

#12

Post by Royce » 15 Apr 2019, 13:53

Looks correct to me. I would just install a jumper and see if the problem goes away.

Fabien wrote:
15 Apr 2019, 12:55
Can somebody confirm if i ma doing right ?

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TheRktmn
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Re: 68 xr7 engine not cranking

#13

Post by TheRktmn » 15 Apr 2019, 14:55

It sounds to me like your battery has given up. It's possible for a battery to show voltage, power lights and accessories, and not be able to 'hold a load'.

What is the battery voltage when when you turn the key to start? Check it at the battery, not the solenoid or inside the car.

Have you tried doing a jump start?
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68 hertz
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Re: 68 xr7 engine not cranking

#14

Post by 68 hertz » 15 Apr 2019, 15:10

Looking at your diagram B is hot, jumping B to S at the switch should energize the solenoid and crank the starter, to test solenoid and starter you could also jump from the battery + to solenoid S and the solenoid should pull in and crank the starter that bypasses any other switch or wire
Randy ,Syracuse NY

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Cougars_R_Grr8
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Re: 68 xr7 engine not cranking

#15

Post by Cougars_R_Grr8 » 15 Apr 2019, 15:26

TheRktmn wrote:
15 Apr 2019, 14:55
It sounds to me like your battery has given up. It's possible for a battery to show voltage, power lights and accessories, and not be able to 'hold a load'.
Our truck did the same thing this week.
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Fabien
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Re: 68 xr7 engine not cranking

#16

Post by Fabien » 16 Apr 2019, 09:50

Ok, so the test done yesterday were pointing issue with the ignition switch.
I hot wire my babe by jumping B to S and engine crank ! so nice to heard my cat talking back :D
So, now is time to order one and wait 10 days, time to receive the switch in France.
Thanks everyones for this help.

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