Originally Posted by Eff10 (Post 287269)

I just bought a 94 Jimmy yesterday. :) My boyfriend has a 94 blazer and I loved it so much that I wanted one for myself. It's currently in primer with 157k on it. I plan on having it painted. There are a bunch of small things wrong with it that I plan on fixing like the passenger window motor, but most of the problems are very small and not a big deal.
The one thing that is driving me nuts though is the 4 wheel drive. I've never seen a problem quite like this so I would really appreciate some help with this issue. The 4 hi won't engage. It just blinks. I know that this is a common thing but the weird part is that the 4 lo does engage most of the time. The problem with this though is that sometimes it engages properly and the light stays on, but sometimes when pressing the 4 lo button both the 4 lo and 4 hi lights are on simultaneously. Also, after finding this out today, I switched it back into 2 wheel and when I went to drive it, it was clearly still in 4lo even though the light wasn't on. I engaged it again and disengaged and that fixed the problem.
What would cause the 4 hi to not want to engage even though the 4 lo will? Also, what does it mean if both of these lights are on at the same time? My boyfriends blazer has the exact same setup and I know his does not do this.
Thanks for your help!

Here's some pictures, and yes, I promise it's a Jimmy. Whoever owned it before must have wanted a blazer pretty bad because they changed the grill and the rims. It was originally blue, so I'm thinking about painting it a dark blue.