4x4 Drivetrain
I have an '04 Blazer with the Vortec 4.3 I6. ~73K miles.
Service: Oil changes only.
I've used Auto 4WD several times over the past few months. Every so often, the 4WD light on the dash blinks once for just a split second, then goes away for weeks.
Just recently, with 4 inches of snow on...