nvrsunk02
New Member
- Joined
- Oct 14, 2007
- Messages
- 44
- Reaction score
- 0
- Points
- 0
- Location
- Bethlehem, Pa
- Vehicle Year
- 2002
- Make / Model
- Ranger
- Transmission
- Automatic
Guys, I have a 2002 XLT 4x4 with 4.0L auto extended cab. When in 2wd, there is a loud hum, that almost sounds like tire noise, that increases in frequency as i accellerate. At about 40mph, it seems to disapear but that might just be because i cant hear it at that frequency anymore. Ive replaced the fluid in the diff, put on new tires, balanced wheels, checked the bearings (no play) and still no change. Now, when im driving in 2wd, and shift it into 4wd when moving, the noise immediately disapears. However, when I let off the gas and coast/decelerate when in 4wd, the noise comes back. When I accellerate again, the noise goes away. The change is immediate as soon as i hit the 4wd switch. Any ideas?