2003 Mercury Mountaineer V8 AWD Front differential

20

Asked by Feb 15, 2016 at 12:05 PM about the 2003 Mercury Mountaineer 4 Dr STD AWD SUV

Question type: Maintenance & Repair

I had a front diffential somehow get
cracked and blew all the gear oil out of the
differential.  All the oil was burnt!!  I've
noticed before that the front wheels would
really grab the road when doing low speed
sharp turns. , like parking the car.  Doesn't
seem like the front should be engaged to
that point to me.  Well I ordered a used
diffential and had it put in.  Car was doing
fine driving around town the last few
weeks, but front was still really grabbing
the road and binding like a 4x4.  Decide to
take it on a trip and at about 80 miles into
the trip front differential dumps all gear oil
again!!  My guess is since the front
shouldn't pull like it is then the diffential is
overheating way too much.  Is there like a
sensor or something that tells the car how
much to rely on AWD?  Can I just remove
the front axle and depend on the rear
wheels?  Really flustrated seeing how I just
put so much money into the car.  Thank for
your help.

12 Answers

5,285

dang it, somehow the differential seal was not seated properly...could be something as simple as that...an error on installation...might have even been Robot assembly...take it back to the dealer and show this condition is not normal~ can do some research for a technical service bulletin or recall....alas, this is NOT normal~ will begin lookin' for ya~

5,285

right out of the chute~ see your dealership~ 2003 Mercury Mountaineer Power Train Service Bulletin 250329 Action Number: 10028736 Service Bulletin Number: 250329 Report Date: May 01, 2009 Component: Power Train Summary: Ford: some vehicles may exhibit oil separation from the internal lube found in the unitized cartridge seal. Oil separation appears to be and is often misdiagnosed, as an axle lube leak. *pe

Best Answer
20

Wow! Thanks! I also saw a bulletin that would explain my front wheel binding also!

1 out of 1 people think this is helpful.
92,525

My Explorer did that, it turned out the special viscous clutch inside the transfer case, it locked up and was driving the front end all the time, that in turn ruined my front differential.

1 out of 1 people think this is helpful.
20

Yeah that sounds exactly like my problem then! Thanks a ton for yalls help!!

1 out of 1 people think this is helpful.
20

Tennisshoes, in what way did your differential fail. My ends up losing oil and grinds. I guessing from the differential overheating from it running too much. I just wanted to know if ours failed the same way.

92,525

Started to howl and blowing lube out of the vent.

5,285

ooo that IS ugly!~

20

Lube? As in gear oil?

92,525

Yep, and it made a real mess.

20

I've decided to just get a whole transfer case! Sound like a good idea?

5,285

maybe the replacement (like from the boneyard) will have Exactly the same problem...found this to be the case whenever I need a part the exact problem is there on the replacement part~...but if you inspect the replacement as seems okay I'd say go for it...you'll need the help of two more guys tho~

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Mountaineer

Looking for a Used Mountaineer in your area?

CarGurus has 1,177 nationwide Mountaineer listings starting at $799.

ZIP:

Search Mercury Mountaineer Questions

Mercury Mountaineer Experts

#1 Tom Demyan
Tom Demyan
Reputation 540
#2 kbro
kbro
Reputation 460
#3 tuff4x4
tuff4x4
Reputation 300
View All

Related Models For Sale

Used Ford Explorer
929 Great Deals out of 72,328 listings starting at $1,499
Used Ford Expedition
462 Great Deals out of 24,840 listings starting at $1,150
Used Lincoln Navigator
98 Great Deals out of 5,759 listings starting at $1,900
Used Ford F-150
2,222 Great Deals out of 205,382 listings starting at $1,499
Used Chevrolet Tahoe
559 Great Deals out of 28,789 listings starting at $1,699
Used Jeep Grand Cherokee
1,023 Great Deals out of 74,109 listings starting at $800
Used Ford Escape
1,383 Great Deals out of 93,676 listings starting at $900
Used Dodge Durango
268 Great Deals out of 22,629 listings starting at $1,200
Used Honda Pilot
383 Great Deals out of 21,427 listings starting at $1,500
Used Nissan Pathfinder
256 Great Deals out of 22,580 listings starting at $1,995
Used Lincoln Aviator
9 Great Deals out of 228 listings starting at $2,885
Used Toyota Highlander
354 Great Deals out of 24,441 listings starting at $2,499

Used Cars For Sale

2010 Mercury Mountaineer For Sale
3 Great Deals out of 84 listings starting at $6,800
2009 Mercury Mountaineer For Sale
16 listings starting at $4,995
2008 Mercury Mountaineer For Sale
9 Great Deals out of 139 listings starting at $2,999
2007 Mercury Mountaineer For Sale
9 Great Deals out of 146 listings starting at $3,470
2006 Mercury Mountaineer For Sale
8 Great Deals out of 171 listings starting at $2,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.