Here's a puzzler...
All lights on my 4wd switch are lit and will not turn off (Auto, 2HI, red Neutral led, 4hi and 4lo) and the blazer starts out very sluggishly. Service 4wd light is NOT on.
The switch was replaced about 10K miles back.
Any ideas? nothing in the manual refers to the lights all staying on at startup, only if they are flashing.