I've noticed the last winter that when I shift my 92 S10 Blazer into 4 wheel
high, it works great. When I shift it out, the wheels disengage but the
light on the console still shows it is in 4 wheel. The front wheels do not
spin so that part is not engaged but at higher speeds you can feel a
If I put it in neutral and back to 2 wheel the light will eventually go out
and all feels right again. Back to smooth at higher speeds.
I forgot about it yesterday and drove it on the interstate at 75mph and felt
the shudder, looked down and saw the light. Looked back and saw smoke.
Pulled over and popped the hood and you can see fluid came out the breather
tube on the firewall from the tranny spilling onto the exhaust.
Got the light to go out and back to two wheel drive and went on my way. Now
the truck shifts smoother and sharper then it ever has! :) very strange.
It has 327,000 miles on it and the fluid and filter has been changed twice.
I find it strange that is shifts better and smoother then before, I would
think it was horrible on it running it like I did. 4 wheel still works.
Fluid is not burnt bad. I think I will change it anyway. I always add Lucas
treatment to it.
What the heck is this thing doing??