p0012 error code

[dac1215]

I have an 02 4.4 x5 with 75,000 miles, that just started making an awful ratteling noise. Took it to advanced auto and got the code p0012. Cam shaft position actuator a bank 1. timing over retard. Does anyone have an idea on how much this is going to cost to fix???!!! Anyone else with this problem?

[Rearro]

I am Having the same problem with my 04, 4.4L, X5 Did you ever find out the problem? and how did you fix it?

If any one else has had this problem Please Chime in!!!

Thank you in advance!!