injector o rings
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
fire the truck up and free rev it, i mean pedal to the floor free rev. if it revs slowly then all of a sudden when it gets to around 2500rpms it frees up and revs fast to redline then you may have some bad injector o-rings.
What is your truck doing for it to be running bad? did you check fuel pressure? no CEL?
Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
did you over fill the oil yourself??? see if the oil has any diesel in it just for fun since it's over filled.
fire the truck up and free rev it, i mean pedal to the floor free rev. if it revs slowly then all of a sudden when it gets to around 2500rpms it frees up and revs fast to redline then you may have some bad injector o-rings.
What is your truck doing for it to be running bad? did you check fuel pressure? no CEL?
fire the truck up and free rev it, i mean pedal to the floor free rev. if it revs slowly then all of a sudden when it gets to around 2500rpms it frees up and revs fast to redline then you may have some bad injector o-rings.
What is your truck doing for it to be running bad? did you check fuel pressure? no CEL?
OP
You need to see if its fuel or coolant that is rising the oil.
Let it sit a bit. Sniff the level stick then pull the drain plug on the pan. Just dump
a sample of the oil. Do the look and sniff.
Fuel is on top and coolant is on the bottom.
Bill
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Logistics Pro
Joined: Jun 2009
Posts: 4,116
Likes: 6
From: metairie, LA
i didnt over fill it, in fact i have a leaking cooler so i check it everyday till i get it fixed. sudden loss of power, killed like it was running out of fuel. drove it like that for about 3 miles. now it seems to be running fine. how can i tell if diesel is in the oil, it smells like diesel, and was bubbly, but i had just shut it off
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
sorry Bill. was just sayin' thats one way u can tell if the injector o-rings may be bad. didn't mean to rev it like past 3000 rpm or rev it like that cold or anything. haha. don't wanna blow any engines so i'm with ya. LoL
i believe one way to tell if there is fuel in it is to pull the dipstick and put a dab on a paper towel. if there is fuel in it then a wet spot will appear around the oil spot.
i believe one way to tell if there is fuel in it is to pull the dipstick and put a dab on a paper towel. if there is fuel in it then a wet spot will appear around the oil spot.
Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
Problem is the oil level is high.
Best is to see why first. I for one want
oil in my bearings not coolant.
Op
You have external oil cooler leaks.
Its a good chance you are also leaking coolant into the motor.
Has the coolant level fallen?
Bill
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
good call Bill, i love keeping up with your posts. i learn quite a bit just from reading a lot of your posts. except for the dancing bananas.. LOL
side note, whats with all the oil coolers this year. it's crazy!!! i guess the oil cooler will crack inside the tube and allow the 2 to mix, but if there is diesel in there then what could it be? possibly the injector cups?
side note, whats with all the oil coolers this year. it's crazy!!! i guess the oil cooler will crack inside the tube and allow the 2 to mix, but if there is diesel in there then what could it be? possibly the injector cups?
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Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
I believe OP might have smelled fuel in the oil.
This would rule out a cooler internal leak.
Problem is if inj o-ring fails between the fuel and oil
you get oil in the fuel due to the oil pressure is much higher.
Fuel in oil is another story.
Time will tell
Bill
This would rule out a cooler internal leak.
Problem is if inj o-ring fails between the fuel and oil
you get oil in the fuel due to the oil pressure is much higher.
Fuel in oil is another story.
Time will tell
Bill
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Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
chicago, have you looked at the fuel in your fuel bowl??? see what color the fuel in the fuel bowl is...
Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
Oil pressure loss and its burning a oil/fuel mix or
just oil blown out the top of the inj and less fuel atom.
Can you remember how much if any oil you were burning off before
the failure was found. Just allways had thoughts it could be caught
early from the loss of oil. (before the failure)
This is with thoughts of the failure being on the bottom of the inj not the top.
Was the o-ring failure out the bottom or top? High % is top.(no oil loss)
Bill
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
resident expert=Bill
Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
Not an expert, Just full of useless info.
BTW at idle the oil pressure is still much higher than the fuel.
What is your idle ICP? ICP is your oil pressure.
OP
We mucked up your tread.
Just get a look to see which it is. fuel/coolant.
Oil level just does not rise.
The issue did not go away. This does not ruleout that
the oil has not been changed in ages. Fuel in oil could build over time.
Bill
BTW at idle the oil pressure is still much higher than the fuel.
What is your idle ICP? ICP is your oil pressure.
OP
We mucked up your tread.
Just get a look to see which it is. fuel/coolant.
Oil level just does not rise.
The issue did not go away. This does not ruleout that
the oil has not been changed in ages. Fuel in oil could build over time.
Bill