37 Ford build--IE: old Header issues thread /37 Ford/5.0/GT40P heads

[Don Shillady]

I just finished soldering the ground wires for the headlights and the parking lights together so they now have the same ground for sure. However I still do not have parking lights even though the headlights are very bright! On Easter Sunday afternoon my 5 year old grand daughter sat in my car and messed with every knob on the dash. At that time I had the parking lights and the tail lights both connected to the "running lights" terminal and now I see why the parking lights were on (briefly). The TPI tech guy told me some folks run the parking lights together with the headlights so there is a yellow tinge from the yellow LEDs as for a fog light effect but I want the greater contrast from the yellow turn signals against the white headlights rather than against a yellow parking light background. The only good information in this message is that you can hook the parking lights to either the Acc/park terminal OR the Running Lights/Park terminal as you can see from the little chart I gave above. The only requirement is that the tail lights have to be on the Running Lights terminal in either case when using the Speedway 910-64051 switch. However this problem is driving me up the wall! I am now putting the battery on a long trickle charge so I make sure the battery is at full charge. Can any electrical expert on this Forum comment on whether the problem has to do with different voltage/amperage requirements for the yellow LEDs versus the filament headlight bulb?

Don Shillady
Retired Scientist/teen rodder