Originally Posted by
fordboy_52
ok, for some reason i remember applying power to the blue wire and grounding the blue and white. does this make sense?
No it does not. Are we talking about the 1992 or the 1993 trucks wiring.
Also do they both have speed control?
The big difference for the horn circuit between 1992 and 1993 is the speed control. The 1992 uses vacuum and the 1993 is all electric.