hey all. need some help. i have a 67 GT fastback that used to start perfectly fine. but now, when i turn the key over, it doesn't start and nothing happens. I've replaced the starter (which was bad...i had it tested), the solenoid, the actual ignition switch itself (which was an obvious pain to do behind the cluster) and the lock cylinder. no luck. here are the symtoms....i can get the car to start fine by putting a screwdriver across the solenoid, and the key WILL even turn the car off. i just won't turn it on. what could it be? any help is GREATLY appreciated.

 

maybe somewhere in the wiring

 

Hello.If your car has an automatic transmission, my first guess would be the neutral safety switch has gone out on you. If it's a manual, then it could be a problem with the wire that runs from the 'S' post on the front of the starter solenoid to the 'Start' position on the ignition switch.Hope that helps.

 

ditto what Veronica said about the neutral safety switch....mine has gone out and I have to put it in neutral to crank it. (Gotta get that fixed soon)

 

sorry....i forgot to say it was an automatic. i tried putting it in neutral and starting it, but still no luck. i'm running out of ideas...

 

Try hot wiring it. If that works, then the new tumbler you put in is bad.

 

Hi again.if you look at your car in the area indicated in the picture, you should see a small wire harness that goes down towards the transmission. It will have four wires, two of which will be black with a red stripe and the other two will be red with a blue stripe. The black/ red are your back-up lights and the blue/red are the neutral safety switch itself. There will be a connector along on that harness that allows you to unplug it. Unplug it and, on the end that goes through the firewall, connect one of the red/blue wires to the other red/blue wire. This will bypass the neutral safety switch. If the car will start, there's your problem. Replace the neutral safety switch. If the car still won't start, then the problem is in the wiring itself. First look to see if the harness is laying on the exhaust system and is all melted up.If no, run a wire from the the red/ blue wire coming out of the back of the ignition switch to the post marked 'S' on the starter solenoid, which should already havea red/ blue wire on it. If the car starts, then you have a problem with wire. Track down the problem along that wire and correct whatever cuts, breaks and shorts you find. If the car still won't start then you have a problem with either the connector that is on the back of the ignition switch or the switch itself is bad.If bypassing the neutral safety switch doesn't solve the problem, then you might as well go ahead and pull the instrument cluster out. All of that other stuff will be soooooo much easier to do without the instrument cluster in the way and it isn't a big deal to remove.Hope that helps.

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hey thanks for your help. sorry....i'm somewhat of a newbie so bare with me so if i understand you correctly, you are saying to unplug the connector (one side running to the transmission and the other side running into the firewall). two males and two females. this is the part i couldn't figure out....in order to connect a red/blue to another red/blue, plug BOTH of the connectors back together, but instead on connecting it like its supposed to, just connect one male (i.e. plug running to tranny) to female on connector that runs to the firewall? and that should bypass the safety switch?

i know you circled it coming from the firewall, but are you talking about the connector that you see in the very bottom middle of your pic?