Running lights old TC

[wagoneer]

My brake pedal has been sticky and when released my brake lights stay on for a while I stepped out  and noticed the running lights were also on, weird as I am never able to get the running lights to light with the headlamp switch, the blue ox cable was repaired by the last owner perhaps he messed up the wiring? its a factory tow kit with the normal round 7 pin connector in the bed and on the back hitch.

 

[GotSmart]

Immediately check the master cylinder.

 

[Vern]

In addition to the master cylinder I'd check the brake pedal pivot and actuator arm pivot and give them a shot of lube. If the pedal moves freely it's most likely the master cylinder and/or the power brake booster. Neither is a tough repair. The running lights sound to me like a possible grounding issue.

Hope it turns out to be an easy fix, Vern