i own a 2000 gmc jimmy with about 93,000 miles. when i engage 4wd and start to accelerate i hear a very loud popping noise. like its not fully engaging. the lights on the dash are on normally like they should be. i can feel the wheels grip in the front still. after getting a little more up to speed the noise stops. but when im in first gear and accelerating its pops. its very loud. in 2wd it is normal. i used my truck to drive up to the ski resorts in new york. its all stock. i have owned it since 71,000 miles and it has been a good truck. i want to know how to fix this problem as i dont want to be stuck in winter on the side of the road. thanks for your help
Nov 7, 2009 at 2:22 PM