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Ford f150: why do these codes keep coming back

Customer Question
why do these codes keep...
why do these codes keep coming back
Submitted: 3 years ago.Category: Ford
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Customer reply replied 3 years ago
codes are p0340 p0344
Customer reply replied 3 years ago
the truck has lack of power at higher rpm also
Answered in 8 hours by:
6/23/2015
Ford Mechanic: Chris (aka- Moose), Technician replied 3 years ago
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 53,320
Experience: 16 years experience
Verified
These codes indicate cam timing issues associated with the VCT solenoids. Lets first make sure there is not an oil sludge issue causing the variable cam timing components to starve. With the engine at operating temp, add 1 gallon of diesel or kerosene to the oil and run the engine at 1500 rpms for 1 minute. Then shut it off for an hour. Then restart it and run it again for a minute at 1500 rpms. Then drain the oil and filter overnight. Refill with 2-20 synthetic blend and a new filter and report back on those results prior to getting into the engine to work on it. You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.Thanks Chris
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