crashandburn
1/2 ton status
So I picked up this 99 Blazer with Autotrak and the 4x4 doesn't work. The switch backlight works but there are no indicator lights and the service 4x4 light is on.
I swapped from a working identical truck the switch, the TCCM and the encoder motor. What else is there? To be certain that it wasn't 2 problems, I put all those parts into the known good truck, and it still works.
I hear the TCCM clicking rapidly when I start the engine.
I feel like if it was the vacuum modulator then the switch would be lit up.
Any ideas?
I swapped from a working identical truck the switch, the TCCM and the encoder motor. What else is there? To be certain that it wasn't 2 problems, I put all those parts into the known good truck, and it still works.
I hear the TCCM clicking rapidly when I start the engine.
I feel like if it was the vacuum modulator then the switch would be lit up.
Any ideas?
