2002 Chevrolet Blazer Q&A

2002 Chevrolet Blazer Question: where is the 4-wheel drive front actuator ?

WILL NOT LOCK THE FRONT WHEELS IN -
Answer 1
The most common cause for this is a vacuum leak or the vacuum switch on top of the transfer case. Vacuum actuated front axle! Switch is NAPA part # 730169.. Tough to change without a lift.! That will fix 95% of them i have found,, fixed mine as well.. Possible actuator under battery tray but less likely. -