Classic Mustangs (Tech)Technical discussions about the Mustangs of yester-year.
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did you double check the wires that go into the ignition, the part that he pulls off right around 2mins has a back cover, pull that off and take a look inside, you should see 4 wires(?) connected into 3 slots, make sure there in there good.
if you didnt mess with anything under the hood this is the only thing i can think off, unless one of the wires stripped from rubbing up against metal and shorted.
it's possible the brand new switch you bought could be bad. I would take it back out and re-check all the connections and make sure the ignition fuse didn't blow. If you have a test light, hook everything up with the switch out of the dash and turn the key to the start position and check for voltage at the red with blue stripe wire. Also check voltage at the hot wire on the nut at the back of the switch. If you have voltage at the hot wire but not at the red with blue stripe wire with the key in the start position then you need to return the switch or possibly replace the ign switch connector.
New to the forum. I have a problem I believe traces back to the ignition. I'm getting 12V at the + coil terminal with the ignition in "On". When cranking the engine in "Start", the voltage drops to 9.5V.
Based on everything I've read, the voltages are opposite what they should be, that is, should be 9.5V in "On" and 12V to "Start". Wires appear to be correct at the coil and starter relay. Also, at the starter relay where, with the ignition in the "On" position, I'm getting 12V at the "I" terminal and 0V at the "S" terminal. Unsure whether that is the expected condition.
I am getting no spark out of the coil while cranking the engine. New coil and the resistance tests good.
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