|
| Search | Car Forums | Gallery | Articles | Helper | Air Dried Beef Dog Food | IgorSushko.com | Corporate |
|
#1
12-16-2009, 08:04 AM
|
|||
|
|||
|
1992 no headlights until it heats up
Trying to help someone with a 92 K1500 this weekend. The problem is that the head lights will not work until the truck heats up. I have limited info at this time, but being told that once it heats up, they come on. So this lends me to believe that the problem is inside the truck some where. I am thinking thermal expansion, when the wire gets hot the short completes and the circuit? He said that he had this issue a few years ago and replaced the switch but that did not fix the issue. Any ideas of where to start? I am still thinking about starting with the switch. Maybe start with a multi meter and keep looking for where there is power? Since they are both out, start looking for the issue where the power is common for both R and L. Is there any place that i can find a wiring diagram?
|
|
#2
12-16-2009, 08:49 AM
|
|||
|
|||
|
Re: 1992 no headlights until it heats up
try all the connections in the circut, where the wires hook up to the bulb, the battery, and anything else that completes the circut. Also make sure the wires arent corroded on the inside.
|
|
#3
12-16-2009, 01:49 PM
|
||||
|
||||
|
Re: 1992 no headlights until it heats up
Is it ONLY the headlights that don't work or headlights and parking/corner lights?
It may be a sticking relay as well.
__________________
Current Garage: 2009 Honda CR-V EX 2006 Mazda 3i 2004 Chevrolet Silverado 2500HD 2003 GMC Envoy XL 2000 Honda ST1100 2000 Pontiac Sunfire Vehicle History: 2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat.
|
|
#4
12-16-2009, 09:03 PM
|
|||
|
|||
|
Re: 1992 no headlights until it heats up
The parking lights are affected too. The parking lights will come on after 5 min of driving but the head lights will not come on for 30 min. It varies of course. It does not act like a typical intermitent short. Any ideas?
What relay is in the lighting circuit? While trying to fix this issue a while back, the switch was replaced and it did not help. I have not seen it yet first hand, and will still check the switch.
|
|
#5
12-18-2009, 09:09 PM
|
|||
|
|||
|
Re: 1992 no headlights until it heats up
i have a 93 gmc with the same problem i found that if you take off the gray pannel where the switch is and make sure the connetions are still together and wigle the switch they come on. at least that is what my truck does.
__________________
1993 gmc k1500 350 5spd w/od 6.5 td coming soon
|
|
#6
12-18-2009, 10:04 PM
|
|||
|
|||
|
Re: 1992 no headlights until it heats up
I think it is the switch...test with meter to verify..
on a 1992 I don't know if relays were used...if so then relay failure is possible .. since it is a repeating failure it most likely is one of these items rather than lamp sockets corroded or grounds "BUT" I would still give those a look before spending any money ...
|
|
 |
POST REPLY TO THIS THREAD |
 |
|
|
