1972 no instrument lights
Thread Starter
5th Gear
Joined: Sep 2005
Posts: 5
Likes: 0
From: Boston MA
1972 no instrument lights
i have a 72 and the instrument lights just stopped working all other lights work , i changed the 5 amp fuse and still no luck , could it be the headlight dimmer switch, or a ground.... has anyone had this problem, anyhelp would be greatly appreciated
thanks
thanks
Tech Contributor
Joined: Aug 1999
Posts: 15,175
Likes: 3,989
From: Connecticut, USA
I doubt all the lamps went out at once. They are the gray wires BTW. There is a black ground wire that pushes on the back of the dash be sure you have it connected. Quick check use a jumper wire from ground to the metal plate where the lamp socket goes to see it they work.
Does the left signal work? That's grounded off the same circuit on the dash. Use a 12 meter or test light to see if you have power at the sockets.
Gary
Does the left signal work? That's grounded off the same circuit on the dash. Use a 12 meter or test light to see if you have power at the sockets.
Gary
Thread Starter
5th Gear
Joined: Sep 2005
Posts: 5
Likes: 0
From: Boston MA
Gary thanks for the tip i will check it out. the left blinker works fine.... all the other lights work fine, although i did have to take out the bulbs of the backup lights as it was blowing the fuse but this was well before this instument light problem
Racer
Joined: Apr 2005
Posts: 494
Likes: 2
From: rockwall tx
just fixed a 69 with no dash lights. first thing the dimmer part of the headlamp switch had a burnt spot in it. but the problem ended up being a loose grey wire behind the dash that was flopping around and grounding out and blowing a fuse. drove me nuts for a while 
Racer
Joined: Jul 2005
Posts: 499
Likes: 1
From: Winnipeg Manitoba
The "loose gray wire" may be the potentiometer wire for adjusting the dashboard lamp intensity. Its normally coiled up and wound around the front of the switch. As you rotate the headlight switch, a wiper arm sweeps across the top of the coiled wire. I was able to wind mine back up again and glue it back into the switch.
