mechanisms to advance and retard timing to correspond to driver demand. The ability to rotate the cam phaser allows the computer to micromanage timing of the camshaft. Ford 3.5 Ecoboost engine problems — P0016 and P0017 Crankshaft Position – Camshaft Position Correlation. During the 1960s, there were variable camshaft timing gears featuring a torsion spring device that retarded valve timing in response to the increased rotating torque needed to turn the camshaft at higher engine speeds. An electronically controlled camshaft actuator valve is positioned at the front or rear of the camshaft or in the engine block to divert pressurized oil to one side of the actuator or the other. The VVT systems work by pulsing oil pressure into an hydraulic mechanism that advances and retards the camshaft. This is how the cam actuator was born by giving the camshaft the ability to be both advanced and then retarded giving the engine more power throughout its complete RPM range. There are passages in the pump that clog and can cause oil starvation problems. Ford Triton Timing Chain Problems On the other hand, variable valve timing has brought with it some specific issues concerning engine lubrication and … A well known problem with the Ford 5.4 3V engines is the dreaded 'phaser rattle' This happens when the variable cam timing phasers can no longer be controlled by the ECU due to wear in the phaser or lack of oil pressure / volume being delivered to them. My 2008 Edge Ltd. AWD with 8,000 kms. Symptoms of a Bad or Failing Variable Valve Timing (VVT) Solenoid Common signs of a faulty VVT solenoid include the Check Engine Light coming on, dirty engine oil, rough engine idle, and decreased fuel economy. This engine uses variable camshaft timing (VCT). Dealer checked the codes and after consulting with the tech line they were advised problem was in the variable valve timing. The concept of increasing low- and high-speed engine torque by automatically advancing and retarding valve timing isn’t a new thing. At 15K, the proble is back along with a whirling noise when the car is cold. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. When you see a P0016 or P0017 camshaft position correlation code it means that the ECM has attempted to bring the two variable camshaft actuators into synchronization but has failed to correct the problem. It is increasingly being used in combination with variable valve lift systems. They had to remove the front engine cover and replace a cam phaser, pulley and solenoid. Coupled with tuned intake and exhaust systems, variable valve timing can dramatically increase low- and high-speed engine torque, increase fuel economy and reduce exhaust emissions. When trucks lose the ability to precisely control the timing, not only will they set a check engine light code, but can experience rough engine idle and lack of power. This is where the variable valve timing comes in. In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. Variable Valve Timing Control Solenoid Replacement Cost The average cost for a Ford F-150 variable valve timing control solenoid replacement is between $221 and $291. began running rough and stalling followed by the check engine light coming on. A well known problem with the Ford 5.4 3V engines is the dreaded 'phaser rattle' This happens when the variable cam timing phasers can no longer be controlled by the ECU due to wear in the phaser or lack of oil pressure / volume being delivered to them. At 13 K, Ford went into the engine, replacing all the variable cam timing hardware. Late model Ford 5.4 engines use variable valve timing (VVT) Ford Variable Valve Timing Mechanism. The dealership is in contact with the Ford help line, which claims some new designed part is on the way. If you have a Ford 5.4 camshaft code, lean condition or misfires, this article is for you. Ford 5.4 3V Cam Phaser Fix. Labor costs are estimated between $157 and $199 while parts are priced between $64 and $92.