Turbo quit then came back

[Madison]

I thought I would put some info on here before I took my truck to the Ford dealership. 2008 6.4L F350 4 X 4 just over 20000 miles. I was towing my 5th wheel to the dunes on Friday and stopped for fuel in Quartsite. Turned off for a few minutes while we had some lunch. When I pulled out of parking lot, the truck had a slight jolt at about 10 mph which I thoght was just a shift between gears. About 15 minutes later, I was passing another camper on a level straight away and I had NO get up and go at about 55 mph. I snuck by him and checked my turbo gauge the rest of the run to Glamis. It never got over about 35-40% and I felt like I was only running on engine and no turbo. I could barely get to 60 mph, but the engine seemed to be running smooth.

Before leaving the dunes, I checked under the hood for loose wires or whatever. Everything looked OK, but I wiggled everything I could get my finger on. Well, my turbo worked just fine all the way back to Phoenix. I had power, and turbo guage ran up to 80%. Any ideas?

[dieselkane]

I think it needs to be checked for codes. Maybe the control motor for the turbo vane actuator?

[po-po 5.0]

Originally Posted by dieselkane

I think it needs to be checked for codes. Maybe the control motor for the turbo vane actuator?

that would definetly limit the boost.

[ZeroOne]

There is an arm that goes from the actuator to the turbo itself, with little mini heim joints on it. You could always move that thing through its full range to make sure you don't feel it sticking. (Engine OFF!) Doubt that would solve anything but if you felt it bind up or something, it'd be nice to know.

[dieselkane]

Check for codes too! That could tell you a lot of information.

[BrianR]

I just switched to the spartan 75 tune w/o dpf after running the 250 for 10,000 miles. On occasion without warning it will only build about 18lbs of boost, but run fine otherwise. It will barely get to 60 mph. I'm going to try switching back to the 250 and see if it still happens.