Headlight issue (yes i know)
As I said earlier, something is getting hot, sounds like your on the right track. Good Luck. JTS 71 Mach1
"We built these cars to drive the "HELL" out of them, not to be museum pieces!"  Carroll Shelby

2008 Mustang V6 5 speed "Diablo Sport Predator" tuner, 87 octane tune. WOW!
1994 Ford F150 Shortbed
1986 Honda 450 Rebel
1995 Honda Pacific Coast
1989 Jacobra / Jag xjs

The head light switch will get very hot around the instrument cluster dimmer ring.
Still feel the defect is in the 14290 wringing harness under the hood. Very rarely is the defect in the wires before the fuse, after the fuse, to the switch, Then out to the lights. Fresh looking tape on a 46 yr old car may be an indication of a repair somewhere down the line. Maybe not a good repair.
Oh bye the way, Does the car have a fold down rear seat, magnum 500 15inch Wheels, or a Rim blow steering Wheel in new condition ?
Good luck J.

Possibly Related Threads...
Thread Author Replies Views Last Post
  2004 Mach 1 cruise control issue. zo6guy 5 5,077 08-09-2015, 11:40 PM
Last Post: JTS71 Mach1
  Horn issue Gos1 12 8,076 01-09-2012, 01:31 PM
Last Post: JTS71 Mach1
  How to Remove Headlight Switch? -1972 Mach 1 1972Mach1NY 7 7,833 08-11-2011, 05:51 AM
Last Post: Steven Harris

Forum Jump:

Users browsing this thread:
1 Guest(s)

Forum software by © MyBB Theme © iAndrew 2016