significant oil leak - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 13 (permalink) Old 01-09-2017, 11:04 PM Thread Starter
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significant oil leak

My 2001 F350 4x4 is leaking oil, and I don't mean a "drip". I'll preface my post by saying this is my 1st 4x4, and 2nd diesel (though I've only had a diesel since April). Truck is parked facing slightly downhill. There is a stream of oil a couple of feet long. It appears to be originating on the driver's side of the engine somewhere behind the front diff. It's not from the valve cover or intercooler tube, but is running down the crossmember and seems to be coming through around the slotted hole (that appears to be) for the engine mount. Does engine oil drive the 4x4 switching? There are a couple of hydraulic lines between transfer case and front diff that look pretty wet. Any direction is appreciated.

Thanks!
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post #2 of 13 (permalink) Old 01-10-2017, 03:30 AM
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Re: significant oil leak

Most likely leaking oil cooler. There is a rebuild kit for it. Dont used dorman. Ford or international only

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
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post #3 of 13 (permalink) Old 01-10-2017, 03:34 AM Thread Starter
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Re: significant oil leak

Wouldn't the oil cooler be with the radiator/trans cooler/intercooler? This is definitely farther back. Where does the oil leave the block to be cooled?


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post #4 of 13 (permalink) Old 01-10-2017, 03:38 AM
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Re: significant oil leak

Oil cooler is on the driver's side of the block. Its the piece the oil filter screws onto.

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals
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post #5 of 13 (permalink) Old 01-10-2017, 03:53 AM Thread Starter
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significant oil leak

Yep. Thanks a lot. Just watched a great video on rebuilding it. Doesn't look bad. I'll get under there in the next day or two to confirm the leak location. May just be adding oil until I can get to the rebuild. It's not my daily driver. Other than the nuisance, is it urgent? It's not something that's gonna blow out and dump oil everywhere, is it?


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post #6 of 13 (permalink) Old 01-10-2017, 12:34 PM
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Re: significant oil leak

You better pick up like 8 gallons(i think) of antifreeze too. Oil cooler is fairly easy to rebuild.

2003 f250 lariat ccsb, 4x4. 7.3, bullydog 6 pos. chip, 6637, 315 tires, HD 4r100, badass stereo. 127,000 going strong
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post #7 of 13 (permalink) Old 01-10-2017, 01:09 PM
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Re: significant oil leak

8 gallons of 50/50 mix or 4 gal of full strength.
I personally wouldn't drive it.

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals
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post #8 of 13 (permalink) Old 01-10-2017, 01:57 PM
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Re: significant oil leak

Don't drive it it until its fixed, can mix water with oil

1997 CCLB 7.3, ZF5, 4x4, 4.10, brought back from the dead
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post #9 of 13 (permalink) Old 01-10-2017, 03:39 PM Thread Starter
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Re: significant oil leak

Ugh! Makes sense. I may have to do it one time. I need the truck Thursday, but the entire drive will be less than 10 miles, and nothing heavy.


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post #10 of 13 (permalink) Old 01-10-2017, 03:45 PM
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Re: significant oil leak

Just keep checking it. The coolant and the oil levels.

01 f-250, Standard
Rev tech 4" lift, 37" military wrangler Mt tires
KC diy 66, Full force 160/100 and custom tunes from PHP
Banks intercooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
3/0 battery cables with military style terminals
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