rear end problems
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Joined: May 2006
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From: dryden,michigan
rear end problems
i just bought a 03 ford explorer fully loaded v6 tho .. i have this low pitch deep growl at 60 its not that noticible unless everything is off and if you let off the gas it goes away i also get a pinion sound noise at all speeds if i let off it goes away?? are these trucks common rear end problems? it has 126,000 miles if any one has any advise let me know thanks it all the wheel bearings seem to be good i just put a new on on before i bought it a rear one the other 1 seems to be good
Tuned
Joined: Feb 2007
Posts: 288
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From: SW Florida
Unfortunately that is all too common on the Gen 3 Explorer rear ends. Do a google search for 'explorer rear end whine' and you'll see what I mean. I believe this was the last Ford TSB issued on the subject:
http://www.fcsdchemicalsandlubricant.../tsb/05126.pdf
I don't know if it will help for sure but I have my '02 on a 30k service interval for the rear end and the tranny. So far so good...
http://www.fcsdchemicalsandlubricant.../tsb/05126.pdf
I don't know if it will help for sure but I have my '02 on a 30k service interval for the rear end and the tranny. So far so good...
Hotshot
Joined: Jul 2005
Posts: 11,931
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i had the noise at 60 MPH. goes away with foot off the throttle. i changed out the rear axle oil to full synthetic 75 w 140 and put a 7 oz bottle of friction modifier in it. That seems to help about 80% noise reduction. It is gear whine and only at 60 MPH. If you change the oil viscosity or charactoristics, the oil clings to the gears better and can change the noise volumn.
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Joined: Feb 2004
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From: "Garden State"
My wife's 2005 4.6 Explorer is at the dealer for the diff whine repair as I write. She has 65,000+ original miles on it, bought new in July 2005, built in Oct 2004. She changed the original diff fluid at Ford at about 50,000 miles. No noise at that point. Just started hearing the whine about 4 weeks ago. Luckily she has the Ford ESP plan that covers this. It will cost her the $100 deductible. Otherwise the charge @ the dealer is approximately $1,500.00+/- to repair the rear diff.
Whimsey
Whimsey
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Joined: Feb 2004
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From: "Garden State"
Wife recently had the rear diff "repaired" in her 2005 4.6 EB Explorer according to TBS 05-12-6. The noise went from a slight whine to a loud howl at 60 mph after the "repair". Dealer said lots of problems with these diffs. No problem, Ford will replace with whole new diff. WRONG! Ford said rebuild it again, after 50 miles. She now has the original whine, only louder, again that she brought it for repair in the first place. Ford says this is an "acceptable" noise from their diff's I guess this is the same as Ford stopping replacing engines with engine slap and saying it's "normal" 
.
Ford needs to at least retain their existing customer base to survive. But by pi**ing them off that wouldn't work
. These are tough times and providing customer service to fix YOUR problems is what is needed to retain customers.
Whimsey
. Ford needs to at least retain their existing customer base to survive. But by pi**ing them off that wouldn't work
. These are tough times and providing customer service to fix YOUR problems is what is needed to retain customers.Whimsey
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When mine was fixed, it was bearings, and it has been ok since--not that many miles, maybe 30K, but fine and no noise. Ford has much to lose not fixing these and making customers mad.
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Hotshot
Joined: Jul 2005
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does it make the noise at 60 MPH when you back off the throttle? if so, its not the bearing, its gear mesh. they might have adjusted the gear pattern different and increased the noise. if it always noisy, then you have a bearing problem. mine only had a problme under power at 60-65 MPH. no noise a 50 or 75 MPH.
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its a Shame Henry Ford is rolling over in his grave
how could it be that a differentail fails so soon no wonder they need govt bail outs they are putting vehicles together now days to only last a short while so you have to get a new one every ten years or so I like the old stuff no bells or whistles just good ol rigs .
how could it be that a differentail fails so soon no wonder they need govt bail outs they are putting vehicles together now days to only last a short while so you have to get a new one every ten years or so I like the old stuff no bells or whistles just good ol rigs .
Hotshot
Joined: Jul 2005
Posts: 11,931
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Ford has accepted no govt bail out.
New truck generally last longer than older trucks. some now go 300k miles.
Old trucks rotted out in about 7 years. New trucks show very little rust in 10 years.
Its the expectation that has changed. People now expect no upkeep cost in the first
100k miles
New truck generally last longer than older trucks. some now go 300k miles.
Old trucks rotted out in about 7 years. New trucks show very little rust in 10 years.
Its the expectation that has changed. People now expect no upkeep cost in the first
100k miles
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