i have an '04 Expedition 4wd. I have front end noise/humming that sounds like deep tread on the road. I had the tires checked and that was not the issue. The tire guys thought it was a wheel bearing. I changed both wheel bearings and its still there. The wife seems to think its getting louder. The front end seems to be solid. I've checked balljoints, etc... Any ideas what else it could be?
A little help please? loud humming
- Thread starter Tommy
- Start date
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BlackBeauty
Member
My 99 kind of has same issues when im on throttle theres a loud humming noise but only on throttle. I dont know if its intake noise or wat but frig its annoying.
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FordandPolaris
Full Access Members
Try doing sharp turns in a parking lot. Any popping or otherwise bad noises points to CV axles. Check the IWE solenoid in the engine bay. Also, rear wheel hubs could be the culprit. Try sitting in the rear seats to see if you can pinpoint where the noise is coming from. It might just sound like it is front end since that is where you are sitting.
BlackBeauty
Member
I dont think my humming is bearings anywhere. Coasting down road. Hill or w.e just tap the gas for 100rpm diff and u can hear it. Kind of sounds like back left (emissions canister?) but i keep my head facing forward i hear it more. Doesnt bother me much i got other problems to deal with ( water leaking but i had that prob with my Beretta too so shouldnt b too hard to fix.
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Copper93
Full Access Members
Any chance it could be the fuel pump going bad on you? How does it drive/ride otherwise?
Copper93
Full Access Members
Maybe it just doesn't know the words?
BlackBeauty
Member
Runs n drives great. Feul pump would b all the time.
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mindgame
Full Access Members
Sounds like IWE issues...
BlackBeauty
Member
U lost me at IWE. Lol
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Copper93
Full Access Members
BlackBeauty
Member
Thats sweet as hell! I wonder wat the costs of changing to it is? Lol
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tonydiv
technical advisor
You'll notice that the vacuum disconnects the wheel end. So if you have a vacuum leak, the wheel end will engage, either fully or partially.
Fortunately, it's easy to test the wheel ends with a small vac pump (like in the video).
Fortunately, it's easy to test the wheel ends with a small vac pump (like in the video).
BlackBeauty
Member
Wait this is in my truck?
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Did you ever find the source of the humming? One way to check the rear hubs is to chock the front wheels and lift one rear wheel, (make sure it's in 2wd) and put it in drive. At an idle you can listen to each hub housing by putting one end of a pry bar or similar against the hub and your ear to the other. Trust me...if the hub is bad, there will be no doubt. Loud, rough rumbling is what you'll hear if it's bad.
anyone experiance this
anyone experiance excessive vibration/ shuttering from 0-20mph ?
when i take my foot of the gas and start again it seems to go away when i stop and start it does it again it stopped doing this for a week and just started up again
tranny has been rebuilt , plugs changed and one coil pack has been replaced
anyone experiance excessive vibration/ shuttering from 0-20mph ?
when i take my foot of the gas and start again it seems to go away when i stop and start it does it again it stopped doing this for a week and just started up again
tranny has been rebuilt , plugs changed and one coil pack has been replaced
ExpeditionAndy
Full Access Members
It's the relay on the firewall on the right hand side near the battery that controls the locking and unlocking of the front hubs for 4WD or AWD.
mindgame
Full Access Members
Are you using 4hi? Does it happen in 2wd? Could be your differential ring/pinion gears
You could have your wife drive the car and you sit in the back and see where it's coming from. Even move around the car if you are in a safe enough area to do so.
You could have your wife drive the car and you sit in the back and see where it's coming from. Even move around the car if you are in a safe enough area to do so.
Last edited:
jdecker
Well-Known Member
Could be the rear ring and pinion, the noise travels up the driveline and sounds like it's coming from the front. I changed about everything in the front before I figured it out. Could also be u-joints. A quick way to check if the IWE are working is to raise the front of the truck and start the engine (in 2wd) and check to see if the front tires can spin without turning the front axles.
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