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2010 F150 5.4L oil light and check engine light. Previously

Customer Question
2010 F150 5.4L oil light...
2010 F150 5.4L oil light and check engine light. Previously ford said had a scarred cam shaft.
JA: Does the light stay on, or does it blink?
Customer: stays on
JA: Are you fixing your F150 yourself? What have you tried so far?
Customer: dealer told me I need a new engine. Have read where there may be a problem with oil sending unit
JA: Anything else you want the mechanic to know before I connect you?
Customer: first started having problems about a year ago when in heavy traffic engine would go low idle and start shaking in the stop and go traffic. Fine when regular traffic. Eventually check engine came on and took to dealer. Tore the engine down and said need new engine because cam shart scarred. Cost $8K, said put it back together and drove it for 6k miles until now. They said the problem is that I didn't keep oil in engine, I say BS. Have read where there has been problems with oil sensing/sending unit. what do you think?
Submitted: 1 year ago.Category: Ford
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Answered in 1 minute by:
11/16/2016
Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago
Jared D
Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,983
Experience: Shop Supervisor at County Fleet
Verified

Hi,

To clarify, you have a new engine now but the oil light stays on. Did the dealer say that the new engine has damage also or just that the light is stuck on?

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Customer reply replied 1 year ago
it is the same original engine. I bought new F150 in 2010.
Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago

So what did they charge you $8k for 6k miles ago?

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Customer reply replied 1 year ago
I did not have it repaired. I want to know if the oil sending unit is a valid problem?
Customer reply replied 1 year ago
Oil and Check engine lights just came on about 18 hours ago.
Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago

Oh Ok. I misunderstood. The oil sending unit's only function is to turn the oil light on and off. It might be the reason the oil light is on, but it would have no affect on the way the engine runs or whether the camshaft is damaged.

Have they told you what trouble codes are stored in the computer?

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Customer reply replied 1 year ago
I can't answer that. If they did, it would be on my receipts. I am going to have a friend that does good work look at it and I was trying to get my facts straight for when I tell him what I think after referring to the dealership and an expert.
So dealership told me that there is a sensor on the 5.4 that tell the pump when to send oil to the heads.
Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago

That sounds more like a VVT solenoid than a sending unit.

The problems that we have on all of these 5.4l engines (I have about 250 in my fleet) is either bad VVT solenoids or bad cam phasers. The problem is that bad VVT solenoids cause bad cam phasers which then cause bad timing chains and chain guides.

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Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago

It could score the cam if the engine was starved for oil, but the only thing that controls oil flow to lubricate the cam journals themselves is the oil pump. The VVT solenoids just allow oil to flow to the cam phasers which then control the ignition timing. They don't actually provide lubrication, just oil pressure operate the phaser.

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Ford Mechanic: Jared D, ASE Certified Technician replied 1 year ago

Please let me know if you need additional info.

Also, don't forget to rate. That's how Just Answer compensates us for our time.

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Ford Mechanic: Jared D, ASE Certified Technician replied 12 months ago
Please let me know if you need additional info.Also, don't forget to rate. That's how Just Answer compensates us for our time.
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Jared D
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Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1,983
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