360 engine fires up but wont turn off!

440brew · Nov 9, 2008

First I am sorry for asking an a-body question but, this situation could be possible on any mopar regardless of engine size or body type. So here goes:

My 68 Barracuda fires right up but turning the key to the off position does not shut it down! What is the deal?

I have checked all the connection to the ignition and they seem fine...

Any ideas?

69 Runner · Nov 9, 2008

My guess is the ignition switch itself is bad. If you have a spare it's an easy check. just unplug one, plug in the other, and see what happens. Problem solved? Problem solved!

5wndwcpe · Nov 10, 2008

Do you, by chance, have an MSD box?

440brew · Nov 10, 2008

5wndwcpe said:
Do you, by chance, have an MSD box?

No I do not!

pless21 · Nov 11, 2008

i had the same problem on my 74 Charger. i replaced the ignition switch and that did not help. I changed the starter relay switch and that fixed it.

5wndwcpe · Nov 11, 2008

440brew said:
No I do not!

Okay, okay, don't get your panties in a bunch :edgy:

What kind of ignition do you have >

440brew · Nov 12, 2008

5wndwcpe said:
Okay, okay, don't get your panties in a bunch :edgy:

What kind of ignition do you have >

Ha Ha Ha... sorry... I have the mopar style electronic ingnition with the electronic control unit and such....

69 Runner · Nov 12, 2008

I take it you don't have a spare switch to test with

440brew · Nov 12, 2008

69 runner said:
I take it you don't have a spare switch to test with

no i do not but i am sure I can borrow one from a buddy.

I also tried to replace the starter relay as mentioned above, but it did not help.

440brew · Dec 9, 2008

440brew said:
no i do not but i am sure I can borrow one from a buddy.

I also tried to replace the starter relay as mentioned above, but it did not help.

Tried a new ignition switch but no dice!

5wndwcpe · Dec 9, 2008

Try running it with the alternator disconnected. It sounds to me like the ignition circuit is being backfed.

69 Runner · Dec 9, 2008

Yeah. Something is shorted somewhere. I'm guessing with the ignition off and the motor NOT running you'll still see voltage in the ignition circuit

74roadrunner440 · Jun 30, 2013

u try replacing the ballast resistor?

kiwigtx · Jun 30, 2013

Is it possible that your brown and blue wires at the start side of the ballast resistor are joined together? This would stack up with the idea from above about the alternator back-feeding the ignition circuit. Or some crossed/shorted wires in the loom? I can't see how a bad starter relay would prevent shut-down....only hinders start-up.

...oh, and please don't throw the used bunched knickers this way :hello2:

tallhair · Jun 30, 2013

Does it have a electric fuel pump installed by chance?

360 engine fires up but wont turn off!

440brew

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69 Runner

ADMIN wif a corner office (Deceased - RIP)

5wndwcpe

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440brew

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pless21

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5wndwcpe

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440brew

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69 Runner

ADMIN wif a corner office (Deceased - RIP)

440brew

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440brew

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5wndwcpe

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69 Runner

ADMIN wif a corner office (Deceased - RIP)

74roadrunner440

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kiwigtx

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tallhair

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