Q: Variable valve timing solenoid

asked by on

Engine light came on car (2008 ford expedition el 5.4L) had little to no hesitation, oil pressure was fine, temps were good just a check engine l was near a pep boys, took it right there after they checked it out, they said it was a variable timing solenoid but the mech noticed the passenger side valve cover had a crack near the front of the valve cover which had led to a little bit of oil to come out, they said i would need another engine, my original engine just turned 124,000 miles on it , and all maintenance is up to date as well as all scheduled oil changes.

My car has 124000 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, Check Engine Light on, being told VVT (variable valve timing) solenoid is bad, cracked valve cover, and now needs an engine is all questionable. Ford and their "5.4L VVT issues". I have seen all aspects of failure in this particular system.

Why you have been told you need an engine, for a cracked valve cover is somewhat confusing, unless the timing chain caused the crack. Timing chain(s) and guide(s) replacement can be an expensive repair, and pros and cons need to be considered on an engine with 124,000 miles. Typically, noise from the cam phaser (clacking) and rough idle are associated with a VVT failure.

Possible causes for this is low engine oil pressure, one or both VVT solenoids failing, or one or both cam phasers failing.

There are necessary diagnostic steps required to confirm the fault(s). I recommend having your vehicle’s Check Engine Light fully diagnosed in person to pinpoint the problem and move forward with necessary repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Variable valve timing solenoid

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Vehicle check engine light is on - cannot pass smog test and stalls out - even when u press on gas pedal.

Sent to CS for billing question on how much it would cost for a tune up for the BMW to pass emissions test. A tune up comes with cleaning out the fuel system and performing a fuel injection flush, replacing...

Q: What are the gaskets called that go between the transmission and the transfer case?

Hi there. Usually the gaskets between the transmission and the transfer case are known as the transfer case gasket or the transfer case adapter gasket. The gasket may be listed as the type of transfer case and then followed by...

Q: Timing change

Hey there. The sound does not increase with speed or while turning the vehicle left or right? If the vehicle only makes the sounds while moving, you may even have a faulty wheel bearing assembly. A worn wheel bearing will...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.