I Have A 97 250 7.3l With 110,000 Miles. The Oil And Fuel Filters Are Changed Every 5000 Miles. For Two Weeks The Engine Will Surge (gain And Drop Rpm's) When Held At A Constant Speed. Ford Tech Says May Be Cam Sensor. Any Other Ideas????

 

My 02 done the exact same thing. It was a CAM Sensor.

 

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