90 f super duty 7.3 na symptoms: no front left turn signal, in fact no power in the wire behind the socket. Ground checks, running light comes on, rear turn signal works.
Its got a dump bed, a freshly rebuilt at, nice tires and I have a spare motor, so it’s worth it;)
I was going to piggy back off the rear line, but realized it would light up on breaking. I’m wondering if I need to check a relay before trying to piggy back in at the firewall pass through or column. (is there an easy way to find the right wire past the column connector?)