Truck wont go into 4wd none of the indicator lights are on. Dont hear any motor or noise when 4wd high or 4wd low button is pushed. Last year I had a hard time getting it out of 4-hi. Dont know if it's related. Dont use 4wd often.
What makes this problem better or worse?
Its worst when your stuck in the snow and it won't go into 4wd. Really never a problem in July on the highway.
How long has your 1996 GMC C1500 had this problem?
RepairPal Certified shops can diagnose and repair your 1996 GMC C1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Too many possibilities - *hands-on* testing by qualified personnel will required.
Trying to offer diagnostic assistance based solely on the symptoms usually isn't helpful at all.
Now we could post a LIST of the possibilities but that doesn’t help in reality. Good luck!