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:us: Thank you everyone. I wish I had found this site earlier. Probably would have save me some $$. Although the first "high" pitch whistle may have been a hub assembly from what I've reading. The second (U-Jt) noise was more of the chirping sound. Again thanks. Have a great holiday...

I checked last night - no grease fittings. I was a little off. It's the short, front driveshaft not the long (rear driveshaft). Since I'm not a mechanic I assume this is for the 4wd. I double checked again and it appears very tight with no play so I'm going to take a chance & drive to PA...

I looked around under the vehicle and saw that the U-joint on the front of the drive shaft was very rusty. I sprayed it pretty good with WD-40 and also sprayed the dust shields behind each hub assmbly. So far the noise has not occurred since the spraying on Saturday. I'm assuming it was the...

Two months ago a very high pitch whistle started in the front end. The pitch and sound level remained the same no matter how fast or slow the vehicle was driven, whether in 4 or 2wd and whether brakes were applied or not or whether coasting out of gear. The whistle started at 10 mph and...

Thanks for the welcome Mutineer & BrooklynBay & Dopler174. Posted my problem on the Technical Corner Forum. Just looked & it's not there yet. It will be the post titled '02 Explore front end noise. Hope someone can solve this one. Already spent over a grand changing & replacing parts with...

Here goes. About 2 months ago my Explorer Sport (76k miles) started making an extremely high pitch whistle coming from the front end. At first I thought it was a small commuter jet coming in for a landing at the airport across the road from where I was. [That's how loud it was!!] :rolleyes...

Been surfing the net and ran across this site. I'm in no way a mechanic and once past adding oil, changing air filters & checking tire pressure I'm as helpfull as a screen door on a submarine. Hope I can get some help here. Have a 2002 Explorer Sport. Love this vehicle but it's having an...