I picked up this Blazer as something to play with and let my daughter use. I had a battery drain problem that I have already repaired but still have one more problem. Nice clean body with the visor over windshield.
The 4WD H/L lights keep blinking. I am guessing it is something to do with the 4WD. Not engaging all the way or something.
Vehicle seem to run ok with a lumpy idle (I am guessing the spyder). Suggestions where to start? Ed

 

If your 4wd Hi / Lo indicators on the dash are blinking , I would check the wiring first.
I remember once having the wiring to the Transfer Case disconnected or not every wire connected at this 4 WD indicator section of the dashboard ---and these two lights , like what you mentioned, sat and flashed on and off at me !

 

Mine does that too. I just picked mine up and it actually got stuck.in 4lo and that's all the lights would do is flash and flash and eventually throw the service 4x4 light n disable the switch all together. I had a bad switch also but that wasn't the reason why it wouldn't cone out of 4 lo the actuator was stuck what I ended up doing was driving slowly about 5ish mph and kept hitting the button n finally after hrs of messing with it while not moving it came out but mine if in neutral and I hit the 4x4 button it just flashes but once I put it in drive while holding the breaks it engages