Sputtering when warmed up

2009 FORD F-150
129,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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BOBBY MACNABB III
  • MEMBER
  • 1 POST
the truck runs fine when running cold but when it warms up it starts sputtering like it wants to stall when braking for a red light or even slowing down it sputters. the check engine light came on and the codes were for both the cam shaft position timing sensors both bank 1 and 2 being over retarded. replaced both of them but the code popped up again and still having the same issues. was hoping to fix it myself but I am running out of patients. I have heard multiple things that it could be but I just do not know
Jun 1, 2017 at 10:49 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,051 POSTS
Hello,

The camshaft actuators depend on clean fresh oil to work correctly. Please check and change the oil as needed. Here is a guide the will show you what you are in for when doing the service.

https://www.2carpros.com/articles/how-to-change-engine-oil-and-filter

If that is not the problem is could be caused by low oil pressure which will not move the camshafts as it should.

This can be caused by a clogged oil pump pick up due to lack of maintenance.

Please let us know what happens, we are interested to see what it is.

Cheers, Ken
Jun 5, 2017 at 5:30 AM
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