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Intermittent oil leak on 6.4L engine

by , Posted to on 10/01/2012 10:38 PM | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
This may sound like a stupid question, but has anyone else had what appears to be an intermittent oil leak from the driver's side front of the 6.4L diesel in their F250, mine's a 2009 model?

A couple months ago I thought it leaked for a few days after a mere 14k from having the front seal replaced, almost called the dealer and then it disappeared and I chalked it up to my imagination (more like AC condensation dripping and taking some oil from the latest oil change).  Well, last Friday I noticed about a 10 inch diameter oil spot under my truck while at work, and when I got home I saw the same thing from where it was parked the night before.  Saturday, I again saw a 10-12 inch diameter oil spot at home so I crawled under and it looked like oil had been dripping from the front on the driver's side. 

Fast forward to today and there was no oil spot under the truck this morning at home, nor at work. It's not a big deal if it's leaking as it has a 100k warranty, but this intermittent thing has me puzzled.

WTH?
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/01/2012 10:40 PM | Reply #1 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
p.s It now has 58k on it and had the front seal replaced last winter at 45k.
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/01/2012 11:19 PM | Reply #2 | "Quote" | "Quick Reply" |

Joined: 08/12/2003
Location: ND
 
Allen Said:
p.s It now has 58k on it and had the front seal replaced last winter at 45k.

Perhaps you're only seeing the leak if you shut it down during re-gen when the engine/exhaust temps are much higher and you're getting more expansion/contraction.

Wild guess, I know jack-squat about the 6.4L.

Why yes indeed I can walk on water..............but I do stagger on alcohol.

Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 06:02 AM | Reply #3 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
Interesting guess, but I tend to keep track of the regens and I hadn't put enough miles on it to regen during the days the leak was evident. However, the day the leak disappeared coincides with a fishing trip that had to have a regen.
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 07:38 AM | Reply #4 | "Quote" | "Quick Reply" |

Joined: 02/28/2007
Location: ND
is the dpf on the drivers side on this engine?  this could be numerous things.  one thing it could be is a bad injector on the left side.  It could be pushing raw fuel out into the header and it's mixing with the carbon and dripping out a joint.  this looks just like oil when that happens. 
Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 07:41 AM | Reply #5 | "Quote" | "Quick Reply" |

Joined: 08/12/2003
Location: ND
 
eyexer Said:
is the dpf on the drivers side on this engine?  
I believe that Ford DPF's are all on the passenger's side.  Fuel tanks are on the drivers side.  Pretty sure that only 1 bank of cylinders is responsible for re-gen though and I have no clue which side that would be.

Why yes indeed I can walk on water..............but I do stagger on alcohol.

Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 08:40 AM | Reply #6 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
Guess I'll just have to call the Ford shop and schedule a visit. 
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 09:54 AM | Reply #7 | "Quote" | "Quick Reply" |

Joined: 02/18/2004
Location: ND
Allen Said:
Guess I'll just have to call the Ford shop and schedule a visit. 
Let us know what you find out.
I just upgraded to the 6.7 a couple weeks ago, my 6.0 was an absolute nightmare for repairs.
Of course just as the warranty was no longer is when I ended up putting thousands into the engine and still had thousands more to go when I traded.


LINDY FISHING



Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 10:00 AM | Reply #8 | "Quote" | "Quick Reply" |

Joined: 02/28/2007
Location: ND
Horsager Said:
 
eyexer Said:
is the dpf on the drivers side on this engine?  
I believe that Ford DPF's are all on the passenger's side.  Fuel tanks are on the drivers side.  Pretty sure that only 1 bank of cylinders is responsible for re-gen though and I have no clue which side that would be.

cylinders really don't have anything to do with the regen.  all the regen does is burn the particulate out of the exhaust filter which is after the turbo.  There are sensors that measure the restriction in it.  When it reaches a certain percentage of restriction it triggers a regen.  During regen raw fuel is dumped into the canister and the particulate is burnt out.  Temps reach upwards of 1300 degrees.  At least in trucks they do. 

Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 10:11 AM | Reply #9 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
johnr Said:
Let us know what you find out.
I just upgraded to the 6.7 a couple weeks ago, my 6.0 was an absolute nightmare for repairs.
Of course just as the warranty was no longer is when I ended up putting thousands into the engine and still had thousands more to go when I traded.


Will do, I was a little surprised that the earliest I could get it in was next week.  Must be a little spillover from the busy western part of the state, the other couple times it needed to go in was only a day or two.  The service guy was leaning towards it being fuel as opposed to oil.  Sure looks like oil, but as eyexer noted mixing a little dirt/carbon in with diesel makes the thumb/forefinger test a little inconclusive.

So far I really like the 6.4L, but this is the second visit for leaks now in less than 15k and I won't keep it much past the 100k warranty if this trend continues.
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 10:14 AM | Reply #10 | "Quote" | "Quick Reply" |

Joined: 02/28/2007
Location: ND
Allen Said:
johnr Said:
Let us know what you find out.
I just upgraded to the 6.7 a couple weeks ago, my 6.0 was an absolute nightmare for repairs.
Of course just as the warranty was no longer is when I ended up putting thousands into the engine and still had thousands more to go when I traded.


Will do, I was a little surprised that the earliest I could get it in was next week.  Must be a little spillover from the busy western part of the state, the other couple times it needed to go in was only a day or two.  The service guy was leaning towards it being fuel as opposed to oil.  Sure looks like oil, but as eyexer noted mixing a little dirt/carbon in with diesel makes the thumb/forefinger test a little inconclusive.

So far I really like the 6.4L, but this is the second visit for leaks now in less than 15k and I won't keep it much past the 100k warranty if this trend continues.
don't feel bad allen, five weeks out in Williston and Minot.  Had to send my work truck to Kupper.  two days out lol

Re: Intermittent oil leak on 6.4L engine
by on 10/02/2012 10:30 AM | Reply #11 | "Quote" | "Quick Reply" |

Joined: 02/18/2004
Location: ND
eyexer Said:
Allen Said:
Will do, I was a little surprised that the earliest I could get it in was next week.  Must be a little spillover from the busy western part of the state, the other couple times it needed to go in was only a day or two.  The service guy was leaning towards it being fuel as opposed to oil.  Sure looks like oil, but as eyexer noted mixing a little dirt/carbon in with diesel makes the thumb/forefinger test a little inconclusive.

So far I really like the 6.4L, but this is the second visit for leaks now in less than 15k and I won't keep it much past the 100k warranty if this trend continues.
don't feel bad allen, five weeks out in Williston and Minot.  Had to send my work truck to Kupper.  two days out lol


I needed a some repair work in SW ND and am not going to name names, however I was told to drop my pickup off and they would get to it in the next 6-12 weeks.
Needless to say that doesnt work for me to well, as we are a 2 vehicle family and my wife wasnt willing to walk to work for upto 3 months while my pickup was waiting to get repaired.....

LINDY FISHING



Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 10:36 AM | Reply #12 | "Quote" | "Quick Reply" |

Joined: 02/18/2004
Location: ND
Allen Said:
johnr Said:
Let us know what you find out.
I just upgraded to the 6.7 a couple weeks ago, my 6.0 was an absolute nightmare for repairs.
Of course just as the warranty was no longer is when I ended up putting thousands into the engine and still had thousands more to go when I traded.


Will do, I was a little surprised that the earliest I could get it in was next week.  Must be a little spillover from the busy western part of the state, the other couple times it needed to go in was only a day or two.  The service guy was leaning towards it being fuel as opposed to oil.  Sure looks like oil, but as eyexer noted mixing a little dirt/carbon in with diesel makes the thumb/forefinger test a little inconclusive.

So far I really like the 6.4L, but this is the second visit for leaks now in less than 15k and I won't keep it much past the 100k warranty if this trend continues.
What did you find out?
I have 1,000 miles on my 6.7 now, really like this new diesel engine, wow for power.
Hoping to stay out of the repair shops for a long time.


LINDY FISHING



Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 11:15 AM | Reply #13 | "Quote" | "Quick Reply" |

Joined: 08/12/2003
Location: ND
 
eyexer Said:
Horsager Said:
 
eyexer Said:
is the dpf on the drivers side on this engine?  
I believe that Ford DPF's are all on the passenger's side.  Fuel tanks are on the drivers side.  Pretty sure that only 1 bank of cylinders is responsible for re-gen though and I have no clue which side that would be.

cylinders really don't have anything to do with the regen.  all the regen does is burn the particulate out of the exhaust filter which is after the turbo.  There are sensors that measure the restriction in it.  When it reaches a certain percentage of restriction it triggers a regen.  During regen raw fuel is dumped into the canister and the particulate is burnt out.  Temps reach upwards of 1300 degrees.  At least in trucks they do. 

Cylinders are involved.  Extra fuel isn't injected directly into the DPF.  It's injected into one bank of cylinders during the exhaust stroke, pushing the fuel through and increasing exhaust gas temps.


2nd paragraph (the one that starts under the diagram) , last 2 sentences.

http://www.forddoctorsdts.com/articles/article-07-03.php

Why yes indeed I can walk on water..............but I do stagger on alcohol.

Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 11:26 AM | Reply #14 | "Quote" | "Quick Reply" |

Joined: 09/22/2006
Location: ND
I would post your question here. A good knowledgable group of people.

http://www.powerstroke.org/forum/6-4-motor-problems/

Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 12:49 PM | Reply #15 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
Had the truck in last week for an oil change and to get the engine looked at.  Regrettably something came up and I wasn't able to leave it there for the day and it goes back in tomorrow for the leak.

One of the diesel techs poked his head underneath though and said it looked like an antifreeze leak from the upper radiator hose.  This kind of surprised me as it was certainly not what I expected given the oil drip left behind, but in retrospect I didn't look all that close.


Still not sure why even a radiator hose would leak intermittently.

MissedAgain, yeah I surfed around on that forum earlier and while I didn't see a similar question, i also didn't take the time to start a new thread.
“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 2:49 PM | Reply #16 | "Quote" | "Quick Reply" |

Joined: 08/29/2009
Location: ND
johnr Said:
eyexer Said:
Allen Said:
Will do, I was a little surprised that the earliest I could get it in was next week.  Must be a little spillover from the busy western part of the state, the other couple times it needed to go in was only a day or two.  The service guy was leaning towards it being fuel as opposed to oil.  Sure looks like oil, but as eyexer noted mixing a little dirt/carbon in with diesel makes the thumb/forefinger test a little inconclusive.

So far I really like the 6.4L, but this is the second visit for leaks now in less than 15k and I won't keep it much past the 100k warranty if this trend continues.
don't feel bad allen, five weeks out in Williston and Minot.  Had to send my work truck to Kupper.  two days out lol


I needed a some repair work in SW ND and am not going to name names, however I was told to drop my pickup off and they would get to it in the next 6-12 weeks.
Needless to say that doesnt work for me to well, as we are a 2 vehicle family and my wife wasnt willing to walk to work for upto 3 months while my pickup was waiting to get repaired.....
lol,  my wife had a wheel bearing acting up last sunday,  took it in monday and was going to bismarck before noon.   Not certain if you need a bowtie or boobs, or both but she seems to get the service we want.

                                                                                                                         

Re: Intermittent oil leak on 6.4L engine
by on 10/15/2012 3:12 PM | Reply #17 | "Quote" | "Quick Reply" |

Joined: 02/18/2004
Location: ND
WormWiggler Said:
johnr Said:
I needed a some repair work in SW ND and am not going to name names, however I was told to drop my pickup off and they would get to it in the next 6-12 weeks.
Needless to say that doesnt work for me to well, as we are a 2 vehicle family and my wife wasnt willing to walk to work for upto 3 months while my pickup was waiting to get repaired.....
lol,  my wife had a wheel bearing acting up last sunday,  took it in monday and was going to bismarck before noon.   Not certain if you need a bowtie or boobs, or both but she seems to get the service we want.


You might be on to something, next time I need service work, maybe I can get my wife all "doll'd" up send her in to the shop and have the same results.

LINDY FISHING



Re: Intermittent oil leak on 6.4L engine
by on 10/16/2012 09:07 AM | Reply #18 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
Update on the leak.

It was indeed the upper radiator hose leaking antifreeze and rinsing oil/dirt off the side of the engine. 

No big deal, just tighten the damn clamp is what you all are thinking.  NOT!

The radiator hoses are now quick-connect and have unserviceable O-rings.  So if/when one starts to leak you get to replace the whole thing. 

Parts and labor =  $270

Amount covered by extended warranty = $0
Amount covered by original Ford warranty on powertrain to 100k = $0

“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
Re: Intermittent oil leak on 6.4L engine
by on 10/16/2012 09:46 AM | Reply #19 | "Quote" | "Quick Reply" |

Joined: 02/18/2004
Location: ND
Allen Said:
Update on the leak.

It was indeed the upper radiator hose leaking antifreeze and rinsing oil/dirt off the side of the engine. 

No big deal, just tighten the damn clamp is what you all are thinking.  NOT!

The radiator hoses are now quick-connect and have unserviceable O-rings.  So if/when one starts to leak you get to replace the whole thing. 

Parts and labor =  $270

Amount covered by extended warranty = $0
Amount covered by original Ford warranty on powertrain to 100k = $0


Why would this not be covered under both of these waranties

LINDY FISHING



Re: Intermittent oil leak on 6.4L engine
by on 10/16/2012 09:58 AM | Reply #20 | "Quote" | "Quick Reply" |

Joined: 01/09/2002
Location: ND
Extended warranty doesn't cover "wearables", identified as brake shoes, belts, and hoses.

Ford Powertrain warranty to 100k includes the engine itself, tranny, and front/rear axles. If it doesn't directly help the wheels turn it's not in the powertrain.

“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain
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Posted On: 10/01/2012 10:38 PM
1058 Views, 23 Comments

Tags: oil, intermittent, 6.4l, leak, engine, driver, 0, f250, stupid, anyone
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