Posted by Allen on October 28, 03 at 04:52:45:
Hi! After a long dry spell of no issues, it seems the weather turning slightly chilly is bringing them out. Last year - when it got cold - the "Service 4WD" light on my '99 GMC Suburban K2500 made several appearances.
If I shut off the truck and restarted it, sometimes it would go away and function normally. Well, the light made two appearances again in the last week. I thought I remembered reading on here about the dash switch being known for having issues, so I bought another one and replaced it.
This morning, with the new switch, I got the same light again. I tried to research it some more on #1's site but came up empty. However, I know it's been discussed before.
What would be the next thing to look for or check out? I know I'm not the first person to wrestle with this one. Odds are good that the problem will appear again about the time I really need 4WD, and I'd like to avoid it.
Thanks again for any insight!