No power until 3000 rpm

pasocorto · #1 (**permalink**) 08-31-2009, 03:16 PM

Hi, I have a 2004 F-350 dually. No power until you get to 3000 rpm and the wastegate(?) makes a bunch of noise. Changed the IAT sensor and it helped for a little while (couple of pushes on the pedal) then went back to no power. After 3000 rpm it kicks and goes much better. No trouble codes coming up but I did have a code of turbo/supercharger underboost before we cleaned the IAT sensor.

05_PSD_Erik · #2 (**permalink**) 08-31-2009, 03:23 PM

First off,

Second, your 04 Diesel (6.0 liter) Does not have a wastegate. It has a variable geometry turbo. Someone else will be along to help you a little better than I can. It sounds like a VGT issue, like it is not making boost down low.

pasocorto · #3 (**permalink**) 08-31-2009, 04:19 PM

Thanks, husband doesn't do diesels. LOL. Trying to figure out whats wrong. From all the threads I have been reading it seems like it could be a few things. EGR, VGT, etc. Hope someone can help me. I pull a big ol' horse trailer and need this truck to work!

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