Ok, My chirp is getting a little more noticeable. It's hard to tell where it's coming from under the rear, Because it's under the rear!! To me it sounds like a old nissan pickup. they always had this chirp when ever they hit bumps.

It makes this noise when ever I hit a sharp bump. So, I can't find it while the truck is sitting still. I get in the back and have the wife drive down the road. It sounds like it's coming from somewher under the bed? I guess when I take the truck to have the oil changed I will have them look for it.

Trucks doing great so far. I got the truck 8/8/04 and now have 1250 miles on it. I still can't belive that the engine was only built on 7/23/04!!

 

Open and re-close your tailgate firmly.

 

I've tried the tail gate and jack. It's coming from somewhere under the truck!

 

To ad one more thing. It's loud! I thought that it was quiet. Until I rode through a tunnel with the windows down. then rode around in the back. It's pretty loud. Sounds like an 1974 ford truck rattle or chirp. You can't hear it if you have the windows up and the radio on.

Oh well, I guess no one has had the same problem. I'll find out myself. Going to half to get under the truck while going down the road!! geezzz guys'

 

stand on the bumper and pounce a little, you could just have squeaky bushings in the rear. i had em, but they went away, and now i am happy.

 

Have you checked to make sure the spare tire is mounted snug??

 

tuff, I haven't thought about that! Will try.

I have tried jumping up and down on the truck and rocking the truck. I can't get it to make the sound. I'm going to try the tire this evening.

 

17777 1996-2004 MULTIPLE VEHICLES - REAR LEAF SPRING NOISE
SOME 1996-2004 SUPER DUTY F-SERIES/F-150/RANGER, 1997-2004 E-SERIES AND 1999-2004 EXPLORER SPORT TRAC VEHICLES EQUIPPED WITH REAR LEAF SPRINGS MAY EXHIBIT AN INTERMITTENT SPRING SQUEAK/CLUNK WHEN COLD, OR WHEN DRIVING OVER ROUGH ROADS. TO SERVICE: 1)LIFT REAR OF VEHICLE, UNLOADING THE LEAF SPRINGS. 2)PRY OPEN SPRING NEAR LEAF TIP LINER USING A NON-METALLIC WEDGE (RUBBER COATED PRY BAR, WOOD DOORSTOP-TYPE, ETC.). 3)APPLY A FILM OF MOTORCRAFT SILICONE BRAKE CALIPER GREASE XG-3-A TO THE SURFACE OF LEAF TIP LINER (DO NOT USE STANDARD GREASE). 4)REMOVE WEDGE. 5)REPEAT FOR REMAINING TIPS. IF NOISE HAS NOT BEEN ELIMINATED, CONTINUE WITH NORMAL WORKSHOP MANUAL DIAGNOSTICS. NOTE: IT IS VERY IMPORTANT TO USE A NON-METALLIC WEDGE. IF A METALLIC WEDGE IS USED, CORROSION PROTECTION CAN BE DAMAGED.
EFFECTIVE DATE: 05/07/2004

 

i have that same chirp whenever i hit a bump and its really pissing me off. but i have determined that its coming from the front end and it sounds like it may be the break calipers or something in that region because when i apply the breaks and hit the same bump it dont chirp, i circle around and do it again without applying the brakes and sure as hell it does it. im thinking it could also be the break pads or something. let me know if you find a fix. service department at local ford dealship dont seem to think its an issue but it sure is annoying me

 

I had a nail in my right rear tire about 2 weeks ago (actually 3 nails...could be the roofing nail thing coming back to bite me???), and had to use the spare for a day or two until I had time to get it patched...plugs don't work on tires these days...I tried.

~Anyway~

After I got the damaged tire back on (after being patched) and put the spare in it's place, I noticed that the spare is 'cranked' back into place. I don't know if it would 'chirp', but 'rattle' maybe.

 

Well it wasn't the tire. must just be the bushings. i got it to do it while jumping on the bumper. I guess jumping in the bed just wasn't in the right spot. Oh well. If it doesn't clear up by 3000 miles I will ask them to take a look at it when I go for my oil change.
Tuff, Do you live in North Ga? I Drove all around North Ga this past weekend. Started at cumming's then went to north west ga to east Ga. There is some fun roads up there and a butt load of motor cycles and bikes.