Dead 6.7...x2
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Dead 6.7...x2
I just thought I would pose this question to others, has anyone else had a 6.7 drop a low pressure oil pump?I purchased two new 6.7 trucks for our company( I'm the diesel nut, so they sent me shopping) the silver one died at a hundred and five thousand the black one made it to 133k. The heaviest load that either truck ever saw would be 6500 pounds. Meticulously maintained oil changes and both drivers that we have had for years that have never abused equipment.$14,800 for the silver one to get a crate engine, unknown on the black one, it is still in the shop. Ford did not step up to the plate and stand behind their product. Both engines dropped the low pressure oil pump with no warning.
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We are located about a half-mile from a Ford dealer and we're even running their filters.I feel sort of bad because the company took my advice and purchased them.It was easy to talk them into the fords because the 7-3 trucks ran 3 to 400000 miles each. They are given to the employees at the end of their life cycle and they're still running them everyday.
Logistics Pro
Joined: Mar 2005
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From: West Michigan
You mention the low pressure oil pump. As far as I know thats all there is in a 6.7. Are you sure it was the oil pump, and not the fuel pump? As far as I know, the 6.0L was the last to use the high/low terminology and to use a High pressure oil pump to fire the injectors, and then the standard oil pump to lube the engine. I dont know that Ford refers to the oil pumps as low pressure anymore. you are probably correct, just wanting to make sure.
What year were these 6.7's?
What year were these 6.7's?
Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
What year model?
I've never heard of the low pressure oil pump and never heard of this pump causing engine failure. I'll ask around though.
Seems to me that 2 trucks which are serviced by the dealer failing would motivate me to investigate very closely who does the work, where the new oil comes from and how much goes in, and verify that the correct oil was always used. They don't usually use bottles of oil, they just grab the end of a hose and stick it in the fill neck.
I've never heard of the low pressure oil pump and never heard of this pump causing engine failure. I'll ask around though.
Seems to me that 2 trucks which are serviced by the dealer failing would motivate me to investigate very closely who does the work, where the new oil comes from and how much goes in, and verify that the correct oil was always used. They don't usually use bottles of oil, they just grab the end of a hose and stick it in the fill neck.
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Joined: Aug 2003
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From: Isanti, MN
Interested to hear more details of the failures. Not uncommon to hear of failed high pressure fuel pumps, but I can't recall hearing of a failed oil pump on a 2016 or prior truck.
How do they know it was the oil pump? Did both engines fail? Is it possible that a cracked valve destroyed a cylinder?
How do they know it was the oil pump? Did both engines fail? Is it possible that a cracked valve destroyed a cylinder?
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Both are 13 models. And due to workload we hired the dealership to diagnose and repair. The one that failed just passed a hundred thousand locked up with a small load on the highway. The black higher mileage truck developed a knock.
Lead Driver
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Let us know. I'm certainly no tech, nor do I work at a dealer. This is the first time I heard of a oil pump failing. Even if your company owns 1000 trucks, two engines failing within days of each other for any reason has got to be very rare, especially with the 6.7. Two engines failing for the same reason within days of each other and for a cause that so far no one on this board has heard about, has to be really rare.
Not saying it can't happen either. Just odd. It might be worth getting the oil checked to see if they used the right oil or if the truck was vandalized. If it was vandalized, then your insurance should cover the repair.
Not saying it can't happen either. Just odd. It might be worth getting the oil checked to see if they used the right oil or if the truck was vandalized. If it was vandalized, then your insurance should cover the repair.
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From: Apple Creek OH
These two truck's have something in common besides the fact that they are ford 6.7L . Something was done either by accident or on purpose at roughly the same time. Oil pump failure is extremely rare.
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I'm glad I posted this thread.I personally went and acquired an oil sample from the truck that is knocking. Upon further investigation I discovered that both trucks were serviced the same day. I really feel bad about this because I recommended these trucks. The dealership was not very friendly about me showing up on Saturday and my request. I made it very clear that I can take the truck with me and we will just forget them doing any repairs. After a couple of uncomfortable moments I just decided to halt repairs until I receive sample data back. My company has the ability to sample oil however I want an independent opinion.