| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,087 Posts1,055,985 Members48,430 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jun 2007 Posts: 110 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2007 Posts: 110 | im working on a 48 loadmaster, all lights work but i cant get the instrument lights to come on, found 1 bulb broken, can the switch be messed up?? checked the dimmer on the switch, wont make a diffrence, ideas???? thanks guys. | | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | 48loadmasterguy,
I don't know if this is accurate, but a wiring diagram I looked at shows the dash lights coming off a common light switch terminal with the taillight. If this is true, it would appear that if it were a defective switch, neither dash lights or taillights would work when switched on...if the taillight does work, then the problem would be bulbs or a poor ground for the dash lights themselves. This isn't the brake light, just the taillight.
Stuart | | | | | Joined: Jun 2007 Posts: 110 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2007 Posts: 110 | thanks stuart ill check it. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | The instrument light feed goes through the dimmer rheostat and so that is part of the chain that could fail. Did you test the bulbs with and ohm meter? | | |
| |
| |