Oil leak
Thread Starter
|
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
Likes: 25
From: Ky
Oil leak
When I bought this truck it had a decent oil leak, engine valley had plenty of oil in it. So I deleted the exhaust back pressure valve. Thought I had it fixed but nope. The leak is less now, but truck will leave 6in spot on the ground when you park it. It's not the hpop, it's coming from the back of the motor. Hpop rail plugs, Valve covers, oil cooler or the pan gasket it's self is leaking. Now this is going to be a work truck to pull my tractor around. Trying to decide if it's worth chasing or not.
Thread Starter
|
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
Likes: 25
From: Ky
Was the first thing I checked, and surprisingly it isn't leaking
Papa Smurf
Joined: Nov 2009
Posts: 1,080
Likes: 204
From: Woodstock, GA
Clean the valley of oil, then stuff all the shop towels you can down in there. Drive a few miles.... then pull the towels out to see what area of valley is soaking the towels.
I'd bet oil seals on turbo stand.
I'd bet oil seals on turbo stand.
Thread Starter
|
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
Likes: 25
From: Ky
Replaced those
Tuned
Joined: Oct 2020
Posts: 418
Likes: 178
From: Piedmont of N.C.
These leaks can be sneaky but you can find them. Usual suspects include the HPOP seals to the reservoir, high pressure hoses or the adapters on either end of the hoses, and the aforementioned pedestal o-rings. Then you also have the IPR and the ICP o-rings. The ICP has even been known to leak through the sensor into the connector of the harness. Just have to have the desire to find it and you will. Patience grasshopper.
Trending Topics
Thread Starter
|
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
Likes: 25
From: Ky
Pretty certain it's either the pan or rear main. Truck has a new front cover on it. I can't see any evidence of the motor being pulled so it was done in frame. I'm thinking of just keeping a gallon of oil with me and running er
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Cargo Master
Joined: Apr 2012
Posts: 2,021
Likes: 524
From: Bottom Of Pikes Peak
have you checked the oil galley plugs? where does the oil appear...is it just on the back side...is there wetness above the oil pan, etc. not a lot to go off of from your description. and pics you can share? Is the valley remaining dry now? Oil cooler/ gaskets good and dry
Lead Driver
Joined: Jun 2004
Posts: 6,340
Likes: 588
From: Amarillo, TEXAS!
There's a drain in the valley that lets fluids run down the back of the engine, inside the bellhousing. If it's running down the outside of the bellhousing from the back of a head, it's probably one of the oil rail end plugs. If that's what it turns out to be, they come out easier if the engine is hot enough to soften the thread lock compound on them . . .
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Are you 100% sure that this is just 'oil'. The fuel/water drain on the back of the fuel bowl my have a slight leak when the o-rings shrink up and not seal tight to the fuel bowl and start leaking into the valley. Valley oil and dirt and fuel mixed together may look like just oil when leaking down the back of the engine ( drain hole at the back of the valley) and onto the ground.
Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
Are you 100% sure that this is just 'oil'. The fuel/water drain on the back of the fuel bowl my have a slight leak when the o-rings shrink up and not seal tight to the fuel bowl and start leaking into the valley. Valley oil and dirt and fuel mixed together may look like just oil when leaking down the back of the engine ( drain hole at the back of the valley) and onto the ground.
Thread Starter
|
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
Likes: 25
From: Ky
Cleaned the top of the motor, fuel drain valve is weeping a tiny bit and I have a small leak coming from under the hpop , not nearly the amount that is hitting the ground on the drive way though.
Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
Check it with the ignition on and if you can, with engine running. May be pushing more out when under pressure from the pump.