Another Rear End Thread
Thread Starter
|
Posting Guru
Joined: Sep 2006
Posts: 1,263
Likes: 17
From: New Castle, PA
Another Rear End Thread
Ok, im getting nervous that the rear end in my 04 F150 is starting to make the howl/hum noise. I thought it was tire noise from my Mastercraft Courser AT's but they arent that aggressive of a tire. I rotated all tires criss crossed, had them balanced, and still have the same hum. Seems to start at about 30-40 and go up, some times the hum sort of pulses like hum, hum,hum, hum, hum. And it increses and decreases in intensity with increse and decrese of speed. No vibration though. I have an appointment to take it in on Thursday, and i have an extended powertrain warranty that should cover it, i just dont want the noise, what do you guys think about it?
Thread Starter
|
Posting Guru
Joined: Sep 2006
Posts: 1,263
Likes: 17
From: New Castle, PA
The rear end was rebuilt a couple years ago way before i bought it (via Oasis report) This noise i hear might not be the rear end, it might be the tires, ive just never personally heard a rear end whine, so i dont know what im listening for. But anyway i take it in tommorow for an alighnment and computer update and they are going to look into it. Thanks!
Senior User
Joined: Sep 2004
Posts: 447
Likes: 0
From: Colorado
Well for what it is worth I'll tell you what I found out my noise was.
About 4 weeks ago I took my truck into Ford for a new Pinion Seal. Starting about a week or so ago my truck was making all kinds of noise when I would drive but no noise when at idle. It sounded like a hum plus a whistle plus a whine. Anyway I took it back to Ford and they new exactly what it was. The mechanic that replaced my seal over tightened everything causing the seal to go out again plus causing the bearing to get "crushed", their words, plus some other issue. Anway they fixed it all free of charge...now no noise.
Anyway it maybe something to look into because I thought it was either road noise or my rearend as well.
About 4 weeks ago I took my truck into Ford for a new Pinion Seal. Starting about a week or so ago my truck was making all kinds of noise when I would drive but no noise when at idle. It sounded like a hum plus a whistle plus a whine. Anyway I took it back to Ford and they new exactly what it was. The mechanic that replaced my seal over tightened everything causing the seal to go out again plus causing the bearing to get "crushed", their words, plus some other issue. Anway they fixed it all free of charge...now no noise.
Anyway it maybe something to look into because I thought it was either road noise or my rearend as well.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,293
Likes: 18
Reduce all tires to 30 psi and drive a course that includes a section where the noise is known to occur. Road noise should be reduced enough to notice if the tires are at fault. If you're now finished, don't forget to reset your tire pressure.
To determine which tire is the worst noisemaker, set all tires at 35 psi. Then, one tire at a time, inflate to 50 psi and drive the vehicle over the same course. Make notes of how road noise changes with the different tires pumped up. Make sure to reset immediately each pumped-up tire before moving on to the next one. This should isolate the worst tire but may be indeterminate if they all are noisy.
To determine which tire is the worst noisemaker, set all tires at 35 psi. Then, one tire at a time, inflate to 50 psi and drive the vehicle over the same course. Make notes of how road noise changes with the different tires pumped up. Make sure to reset immediately each pumped-up tire before moving on to the next one. This should isolate the worst tire but may be indeterminate if they all are noisy.
Trending Topics
Thread Starter
|
Posting Guru
Joined: Sep 2006
Posts: 1,263
Likes: 17
From: New Castle, PA
ok, i might have to wait till i get the truck back, im dropping it off after work at the stealership to have them do an alignment and check the noise. Thanks!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Junior User
Joined: May 2004
Posts: 73
Likes: 0
From: philly
I now have my 04 f150 fx scab in for "clutch packs" already had the rear issues fixed numerous times, arrgghhhh.... to say the least and it only has 52k miles on it I really dread the time to change the plugs on this thing, oh yeah did I also mention it sounds like an f-250 diesel!?!?!?!?!?!?!?!!???!
ok, i had to vent but good luck on your repairs
ok, i had to vent but good luck on your repairs
Last edited by mericanwit; Oct 29, 2008 at 04:29 PM. Reason: adding more info
Posting Guru
Joined: May 2003
Posts: 1,666
Likes: 4
From: Sunny tourist infested FL
That's interesting.... The manual calls for rear tires to the front and the fronts go to the rear end side opposite where they came off.
So....
Left rear to left front
Right rear to right front
Left front to right rear
Right front to left rear
I'm curious where you got your info...
So....
Left rear to left front
Right rear to right front
Left front to right rear
Right front to left rear
I'm curious where you got your info...
8th Gear
Joined: Oct 2008
Posts: 8
Likes: 0
I'm really interested in what the stealership says the problem is. I have a 2004 F150
2WD that started making a noise at about 50k miles. I thought it was the wear bars on the factory tires. But with new tires (same kind) I still have the noise. I can only hear it inside the truck or while riding in the bed. I've stood on the running board and listened .... do not hear. Starts at about 30 mph peaks or changes pitch at about 40. Have listened to the rearend with wheels off the ground / spinning and don't hear the noise. Seems to be in the drive trains as coasting in neutral & engine off at 30 - 35 still has the noise.
Carrier Bearing maybe ?
Front wheel bearings maybe ?
Rear end ?
2WD that started making a noise at about 50k miles. I thought it was the wear bars on the factory tires. But with new tires (same kind) I still have the noise. I can only hear it inside the truck or while riding in the bed. I've stood on the running board and listened .... do not hear. Starts at about 30 mph peaks or changes pitch at about 40. Have listened to the rearend with wheels off the ground / spinning and don't hear the noise. Seems to be in the drive trains as coasting in neutral & engine off at 30 - 35 still has the noise.
Carrier Bearing maybe ?
Front wheel bearings maybe ?
Rear end ?
Posting Guru
Joined: Aug 2007
Posts: 1,714
Likes: 1
From: Canton, IL
I have a question for you, Who was driving the trunk while you were doing this? Sounds a little dangerous..... LOL