Originally Posted By dfsmopars
Originally Posted By 451Mopar
Is the transmission switch clicking or the relay?
I don't have a '72 wiring diagram. Could the NSS be connected to part of the ignition key buzzer? or other saftey interlock circuit under the dash? You mentioned under the sound is under the dash, and the starter relay I think is in the engine compartment (and is should not click when key is not in the start position anyhow.)
If the switch in the transmission is making a noise, check that there is a gasket between the switch and transmission case. When I got my trans from Keisler the NSS was not working. Installed too deep into the trans because they forgot the washer and it smashed the end of the NSS. Had to replace the damaged switch and install with correct washer for spacing.


The clicking is coming when the relay contacts close everytime the shifter passes through neutral. The relay is mounted just under the lip if the dash next to the glove box. The relay always made the same noise with the automatic trannys that have been in there. As said before, very simple but effective circuit.


ok THAT relay is for the seatbelt warning signal not for starting. Its only function is make to light up the dash seatbelt light at map light insert and make to buzz the buzzer as soon you put the tranny in gear and seatbelts are not fastened. Is deactivated when in P or N, just like the starter relay, hence the reason could be clicking when you pass through N. Never have known this relay could be really audible that loud


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With a Charger born in Chrysler assembly plant in Valencia, Venezuela