Loss of engine power

[Fedexman]

I've got 145K miles on my 2007 Sprinter and am having engine power loss trouble. Seems to not want to accelerate and feels like a governor is holding me back. The dealer says I've got a bad EGR valve, mass air flow sensor, and diesel swirl actuator. Due to the actuator being somewhere deep in the engine, they tell me the engine must be removed to get to it. Quite the expensive fix, and I wonder if anyone out there has had this type of problem or an idea on it?

[Greg]

Turbo Resonator

[john]

i had the same problem on my 2006, found out to be a turbo sensor and the dealer didnt have mine in the garage for that long

[john]

had the same problem on my 2006, was turbo rresinator was no big deals to replace

[RadioDude365]

Likley the turbo resonator. I have gone through 3 on my 2.7 I-5 engine. Also look to the Mass Air Flow Sensor I think our engines share. Also gone through two of those and it cut the power about 30%. I now carry a spare mass air flow sensor and replaced the turbo resonator with the machined aluminum after market job. I have 16,000 miles on my RV Sprinter, so it sees alot of higher loads than many of yours.

[anon o mus]

swirl valve acuator common problem engine doesnt need to come out turbo has to be removed to access egrs commonly go bad you have h44 recall for egr valve if has codes for all these emgine is derated bring to dealer and have fixed average joe not fixing

[Mark]

Work with many 07 Sprinters that have this problem. Don't let them take your engine out. We are finding out that the design for 07 Sprinter models is faulted to begin with. 145,000 miles is 55,000 miles overdue for Diesel Particulate filter service. These filters sit behind the catalytic converter and it doesn't matter really what oil or how good your fuel is, they will plug up and confuse your sensors to no end....it is a mechanical problem that can't be fixed with a machine or manual regeneration. The particulate filter actually has to be removed and blow out from both ends until air can pass through it again. We ran several vans up over 200,000 miles and replaced several sensors, resonators, and two turbochargers before the Dealer decided this process should be done every 90,000 miles. My opinion: these filters are essentially a total waste of efficiency and will only anger the consumer base as more and more problems with performance arise. It's no fun getting sent into limp mode while you're going down the highway passing a semi. Sprinter has no idea how bad this design is?