Which Ford engines have cam phaser problems?
10 Popular Ford Vehicles That Had Cam Phasers
- 2004 – 2010 Ford F-150 (5.4)
- 2009 – 2010 Ford F-150 (4.6)
- 2006 – 2010 Ford Explorer (4.6)
- 2007 – 2010 Ford Explorer Sport Trac (4.6)
- 2004 – 2010 Ford F-250 (5.4)
- 2004 – 2010 Ford F-350 (5.4)
- 2005 – 2010 Ford Mustang GT (4.6)
- 2006 – 2010 Mercury Mountaineer (4.6)
Should I replace the cam phasers?
Replacement of the phasers alone is not the correct repair, all of the cam followers are to be replaced as well. If the phasers were replaced improperly then it could possibly cause engine damage, but it also would not run right once repair was completed.
What is a truck cam phaser?
Ford began using computer controlled camshaft gears , known as cam phasers, in their modular 3-valve truck engines in 2004 to allow for variable cam timing. The phasers typically advance valve timing at low RPM under load in order to give you more low end torque, and retard the timing for better top end when the situation calls for it. The variable valve timing system operates when the engine computer (PCM) sends oil pressure to one or the other chamber of the phaser via cam timing solenoids.
What are camshaft phasers?
A “cam phaser” is just an adjustable camshaft sprocket that can be turned by means of a computer-controled servo. Rather than just setting a certain amount of advance or retard, the computer can advance the cam or cams at low rpm to enhance driveability, and retard the cam or cams at high rpm for more horsepower.
What do cam phasers do?
The cam phasers are used to advance and retreat cam timing. This is oil pressure controlled by variable cam timing solenoids. When commanded, the solenoids direct oil pressure to advance or retreat the timing. If the pressure drops due to a malfunctioning part, it will cause a knocking noise.
Replacement of the phasers alone is not the correct repair, all of the cam followers are to be replaced as well. If the phasers were replaced improperly then it could possibly cause engine damage, but it also would not run right once repair was completed.
Ford began using computer controlled camshaft gears , known as cam phasers, in their modular 3-valve truck engines in 2004 to allow for variable cam timing. The phasers typically advance valve timing at low RPM under load in order to give you more low end torque, and retard the timing for better top end when the situation calls for it. The variable valve timing system operates when the engine computer (PCM) sends oil pressure to one or the other chamber of the phaser via cam timing solenoids.
A “cam phaser” is just an adjustable camshaft sprocket that can be turned by means of a computer-controled servo. Rather than just setting a certain amount of advance or retard, the computer can advance the cam or cams at low rpm to enhance driveability, and retard the cam or cams at high rpm for more horsepower.
The cam phasers are used to advance and retreat cam timing. This is oil pressure controlled by variable cam timing solenoids. When commanded, the solenoids direct oil pressure to advance or retreat the timing. If the pressure drops due to a malfunctioning part, it will cause a knocking noise.