What is....
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Senior User
Joined: Dec 2007
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From: Otego NY
What is....
On the left side under the exhaust manifold there is a tube that appears to run the length of the motor to, I belive the oil filter. What is it? Also mine is leaking oil from this tube, right behind the shock if you look through the wheel well, how hard is this to replace?
Beersy50
89 F-350 Dump truck 7.3 4x4 5-speed
Beersy50
89 F-350 Dump truck 7.3 4x4 5-speed
Freshman User
Joined: Apr 2008
Posts: 38
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That tube you call is is the oil cooler. It depends on where it is leaking if it is an easy fix or not. It could be your oil filter is loose or the gaskets between the cooler and the block are bad. Also the cooler is put together with o-rings i believe? It could be the source of your leak.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Any chance you are getting coolant in the oil or oil in the coolant?
If the answer is yes, then it is the oil cooler O rings.
It could be the O rings if the leak is between the tube and front or rear header.
It could also be the gaskets if the leak is between one of the headers and the block.
With the way the fan and air circulation blows fluids around in the engie compartment, it could be as simple as the oil filter is not tight enough on the rear header.
O rings and gaskets are about 50 dollars from Ford or International, dealer items only.
To remove the oil cooler, remove the oil filter, drain the coolant.
Remove the bolts from the drivers side motor mount, place boards under the oil pan and jack the motor up as far as you can and block it there.
Now unbolt the oil cooler, three bolts front header and three bolts rear header.
You will get some oil and coolant on you when it breaks loose from the block.
If you turn it just right, it will come out toward the rear of the engine.
Knock the headers off with wood blocks and a hammer, use caution the headers are expensive.
You about need a press to get the oil cooler back together once you change the O rings.
Install in reverse order.
If the answer is yes, then it is the oil cooler O rings.
It could be the O rings if the leak is between the tube and front or rear header.
It could also be the gaskets if the leak is between one of the headers and the block.
With the way the fan and air circulation blows fluids around in the engie compartment, it could be as simple as the oil filter is not tight enough on the rear header.
O rings and gaskets are about 50 dollars from Ford or International, dealer items only.
To remove the oil cooler, remove the oil filter, drain the coolant.
Remove the bolts from the drivers side motor mount, place boards under the oil pan and jack the motor up as far as you can and block it there.
Now unbolt the oil cooler, three bolts front header and three bolts rear header.
You will get some oil and coolant on you when it breaks loose from the block.
If you turn it just right, it will come out toward the rear of the engine.
Knock the headers off with wood blocks and a hammer, use caution the headers are expensive.
You about need a press to get the oil cooler back together once you change the O rings.
Install in reverse order.
