Posted: 12/11/2004 6:27:15 AM EDT
| Ok, I looked around at some other places and could not find a satisfactory answer. I friend of mine has a gas f250 SD 4x4 2001. His wife has cancer, coming back from chemo yesterday his truck started making noise from the front axle/driveline. Took it easy to get home, then brought the truck over to me. If he would hit a rough patch on the road or those plastic reflectors that are placed between lanes, the truck makes a sound like a bad u-joint, then stops. It only seems to happen on the drivers side. The truck has the auto/lock front hub system and the dial in 4x4, we could not get the 4x4 to engage when we tried it. The driveshaft from the t-case to the front axle has some play as it comes out of the t-case right where the double u-joints are located. I am thinking that the auto hub is engagaging when the truck hits anything other than smooth pavement and causing the front shaft to rotate. Now comes the good part, I read that this system uses vacuum to engage the front hubs when the dial(on the axle) is placed on auto? Somehow this doesn't sound right, I was under the impression that it worked the same way the older ford auto hubs worked, i.e. the axle turning inside the hub would catch with one way lock. I really want to help him out , the local ford shop is more of a parts changing outfit than diagnostic if you know what I mean. Your help is greatly appreciated. |