Lost All Boost what the &%$&%

kp1839 · #1 (**permalink**) 02-23-2009, 04:17 PM

I got my 05 powerstroke running good until Iwas towing a truck had a pretty good load going then lost all boost, charge hoses are connected have oil press, Can here the turbo spooling up but no boost with engine code P0046 need advise thanx

**dieseldan2005** · #2 (**permalink**) 02-23-2009, 04:29 PM

check out this link. It talks about the code you have and similar problems.

HELP!!! Turbo problem??? Loss of power at low rpms. - Ford Truck Enthusiasts Forums

kp1839 · #3 (**permalink**) 02-23-2009, 05:06 PM

At low RPM's it seems to be normal with turbo lag and all but over 45 MPH up hill this 220,000 mile beast is gutless

**dieseldan2005** · #4 (**permalink**) 02-24-2009, 01:52 PM

With that many miles, maybe the turbo is going out.

kp1839 · #5 (**permalink**) 02-24-2009, 04:50 PM

it was replaced a year ago
I did clean the port to MAP and knocked on the turbo with a hammer its gettiing 15 psi of boost so if it happens again ill clean the turbo

**dieseldan2005** · #6 (**permalink**) 02-25-2009, 02:16 PM

I think 15psi is a little low for a 6.0. Don't quote me on that cause i don't have one, but i think it is low. You still might have issues. Hopefully a tech will chime in here and help you out more than i can.

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