I recently had several problems fixed underwarranty- replaced the turbo due to pitting (turbo would not spool) and fuel pump (no start/difficult start with warm engine). Just before these repairs the truck would not start warm at all after surging while in idle at at low speed driving. I thought these repairs fixed the problem; however, the surging has returned and the truck stranded my wife yesterday, so its back to the dealer when I get home.

Is this likely the EGR or EBP as reported in this forum early on '04 trucks or perhaps something new?

'05 F350 4x4 50000 miles, AFE cold air intake (Banks six gun removed so I don't have to fight with Ford)

 

I have an 04 that surged pretty badly until they found a wiring chafe. The tech had looked for the problem three times before a recall on wiring harness. During wiring recall work, small chafe was found and taken care of and truck NEVER surged again.

Others have reported sticking EGR valves as a surging cause.

Find a good tech. He or she will find the problem.
Good luck. Keep us posted.

 

my truck was serging under a load,they replaced the turbo and the vgt solenoid that is attached to the back side of the turbo.they also cleaned the cooling system,this solved my smoking and serging,LOL.fIND AGOOD TECK AND StICK WITH HIM,I went through 3 different dealers before I found a good one.

 

They replaced both engine wiring harnesses, they both had chaffing issues. About got stranded 100 miles from home but limped back. Took 3 days to replace all wiring.