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Car Shaking Problems
Ford F-350

P0603 Internal control module keep alive memory FOR POWERSTROKE DIESEL?


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Wiki User
September 01, 2008 5:51PM

I had a similar problem a few days ago. I had to replace my inline fuel pump located on the frame, below where the driver sits. I then replaced my fuel filter and air filter. it still shook horribly. Just keep driving it to get all the air out. Also check for water in the fuel. Coincindentally i was getting a P0603 code along with a battery light. I had a bad alternator. Go to a real mech shop for a diagnosis. _zone said my alt was good when it was really bad. Good Luck