Differential fluid level and check
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Mountain Pass
Joined: Jun 2003
Posts: 208
Likes: 3
From: Norfolk VA
Differential fluid level and check
I think I my rear differential is leaking. I see oil on the drivers side rear axel and around the differential.
If I open the fill plug how full should it be?
Doug
93 3.0 138K
If I open the fill plug how full should it be?
Doug
93 3.0 138K
Postmaster
Joined: Sep 2003
Posts: 4,452
Likes: 1
From: Southern California
Assuming your van is sitting on a level surface, the fluid should be right below your fill hole. When you fill it, just fill until fluid starts seepng out the bottom edge of the fill hole, then you're done.
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
dump and change diff lube...good time to examine the interior and lube for any cuttings and pinion/ring match...use only 75w90 per Ford specs...higher viscosity will lower your fuel mileage...synthetic not needed unless you live in cold -20d F climate or plus 110d F or you do lots of heavy hauling or towing
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
Doug has a question about fluid to use, I answered....copper had already covered Doug's question about diff lube level
is there anything further?
is there anything further?
Originally Posted by DOUG5G
What type of fluid should I use?
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Tuned
Joined: Mar 2005
Posts: 373
Likes: 1
From: Calgary
Doug, pull the driver's side brake drum and check for oil contamination on your shoes. If the leak in there is bad it should be repaired first. Also make sure the vent isn't plugged.
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Thread Starter
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Mountain Pass
Joined: Jun 2003
Posts: 208
Likes: 3
From: Norfolk VA
The leak is very slight and has not gotten close to the brakes but, thanks for the info. I opened the plug when it is about 7 Degree F outside and the oil is as thick as syrup. But is was also very close to the lip so I don't need to add any right now.
I had that gasket replaced when the van was under warrenty.
I would replace it right now but I am not at home and don't have any place to work on it. It is way to cold outside to do anything but the basics.
Where is the vent?
I had that gasket replaced when the van was under warrenty.
I would replace it right now but I am not at home and don't have any place to work on it. It is way to cold outside to do anything but the basics.
Where is the vent?
Junior User
Joined: Sep 2003
Posts: 76
Likes: 0
From: Concordia, MO
My rear diff started leaking also. The problem was due to a cracked vent hose. Look for the vent hose about mid way down the axle (top) on the drivers side. It's possible that the hose has broken off also.
Postmaster
Joined: Sep 2003
Posts: 4,452
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From: Southern California
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