1956 Thunderbird Engine Wiring Diagram. If your headlights blink when you put the turn signals on you obviously have a wiring problem. Lets face it folks NO automobile manufacturer ever designed a wiring harness to last 40-70 years.
6758a pcv installation instructions. First published in 1973 still available. Our wiring harnesses are brand-new and better than NOS.
6758a pcv installation instructions.
Most of the above data can be found in Ray Millers Thunderbird. Thl4wt headliner 4 bow 1955-1957. It shows the components of the circuit as simplified shapes and the power and signal contacts amongst the devices. New old stock THE PROBLEM.