is this the start of the end.

[Lyrch]

I have a 03 f250 crew cab 6.0 4x4 with 78,000 miles. As far as I know it is all stock. I had to change the ICP sensor 2 monthes ago. I've been noticing a little leakage film around the top of degas bottle, I've never seen it wet. I also have a surging feeling at high speed (90 mph). Does anyone have a idea what this is. Oh yeah also have a cold start problem, though it was the batteries but its been on charge for 4 hours this am and still wont start. Usually it fires right up but seems to be colder today. Thanks for any help.

 

[DEEZUZ]

FICM, try the updated degas bottle cap also.

 

[Shane04KR]

FICM... just replaced mine and had similar issues as you did.... also had the degas bottle cap replaced and fixed the film around the old cap.

 

[Lyrch]

I guess I didnt research good enough. I didnt know there was a replacement cap. I been worried the ficm is going out, but if thats all it is wrong its better. I was just worried the head studs are going out. Thanks for the help.