68 Barracuda won't turn off

[440brew]

Hi Fellas,
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 Valiant Kid]

switch itself....

 

[440brew]

are you suggesting the switch itself is bad?

I just got the car and was told it was new, but you never know!

 

[Old Geezzer]

Like 69 said check the switch first. If it checks OK check your wiring. It may be your voltage regulator back feeding, rare but it happens. Un plug the ING side of the reg while the engine is running, IF it dies you on the right track.
Good luck, and let US know.

 

[crashcaptn]

Excuse the question, curiosity is striking... but how do you turn it off now??

 

[440brew]

I just went out and fired it up... pulled the plug on the volt reg and it kept running. ( the plug on the volt reg pulled the "fld" and the "ing" ) Do in need to keep the "fld" connected?

 

[440brew]

crashcaptn - I just let it run out of gas... damn this is getting expensive!

Just kidding - I lift the cap on the distributor!

 

[Old Geezzer]

440, With key off do you have voltage going to the ballast resistor/coil? If you do try unpluging the ING switch and see what you got. I think your reg is OK
Was the car this way way when you got it?

 

[Old Geezzer]

I just went out and fired it up... pulled the plug on the volt reg and it kept running. ( the plug on the volt reg pulled the "fld" and the "ing" ) Do in need to keep the "fld" connected?

Once you unplug the ING you isolated that part. Just thought of this, check your factory molded plugins on your harness, you may one melted/shorted .

 

[440brew]

440, With key off do you have voltage going to the ballast resistor/coil? If you do try unpluging the ING switch and see what you got. I think your reg is OK
Was the car this way way when you got it?

With the key off I have power on all 4 prongs of the ballast resistor ( per the test light ) and also on the positive side of the coil.

There was no issue with this on the test drive but a month or so after I got it home it appeared.

 

[daredevil]

check for a frayed wire touching on the relay on the driver fender, maybe its feeding the ballast resistor with key off. What aftermarket parts you got on there.anything electrical.

 

[abodyhotrod]

i had to hot wire my car before by hooking the battery up to the coil and then bump it. its a easy way to bypass sum stuff but then it wont turn off until you pull the wire or coil wire. the coil wont last to long like this.

 

[440brew]

check for a frayed wire touching on the relay on the driver fender, maybe its feeding the ballast resistor with key off. What aftermarket parts you got on there.anything electrical.

nothing out of the ordinary, just stock stuff. no electric water pump, fan, etc.

I will check for frayed or melted spots!

 

[daredevil]

a miswired tach could do this if the light is wired together at the tach and your green is connected to the hot at the coil. check the bulkhead too for a bent connector

 

[RedFish]

A 68 barracuda should only have 2 contacts on the ballast resistor so something isn't stock. Anyway...
You probably have wires touching at the starter connections or melted together down that way. Check that first. Rule that out and you'll need a new ignition switch.

 

[440brew]

a miswired tach could do this if the light is wired together at the tach and your green is connected to the hot at the coil. check the bulkhead too for a bent connector[/quoted

daredevil - you may be on to something, my tach is new and I did hook it up around this time however it was working. I disconnected it when the issue started...