I was driving to work today and as I was driving going about 55 the motor seemed like it cut out for a quick second and then went back to normal and It kept doing it. The motor just made like a different pitch like you let off the throttle. The fuel filter has maybe 1500 miles on it. Could it be a bad connection at the fuel shutoff solenoid? And then it started to make this really high pitched sound. I don't know if the two problems are related. Any help is appreciated.

 

Nobody has an idea?

 

Try to purge you're fuel filter to see if there is any air trapped inside. If I were to take a shot in the dark you might be sucking air into the fuel system due to a weak lift pump. That will affect how the motor sounds. It's a long shot but worth a try. Jethrro

 

Well I have a piston lift pump on that is about 3 weeks old so I hope thats not it. It has a new injector pump on it. I had a hard time starting it due to a leaking injector line, but I fixed that. I was a little more difficult to start this morning, but it wasn't bad. Maybe I'm sucking air in from somewhere else