Trying to diagnose turbo issue. - Ford Powerstroke Diesel Forum
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Old 01-09-2014, 10:06 PM
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Trying to diagnose turbo issue.

This stems a little way back, but tonight was the threshold. Its a 2005 F250 6.0 with 103,000 miles. About 3 months ago, the FICM failed, alternator failed, batteries failed, and I had a "mystery" rattle (bearings in a tin can) in idle at a stop or while driving (never in park). In the last 2 days, after an hour drive to and from work to home, I noticed that on 2 occasions the "rattle" would mysteriously go away at while at a stop while in drive. However, when the light turned or when it was my turn, the power was low on take off and the turbo PSi barely moved (maybe topping 8 PSI). I also noticed that when I shut it down for the night on those 2 days, I no longer heard the turbo whine down as I usually had before. Tonight while coming home, the "rattle" again stopped while at a red light, but upon take off, the truck got up to 10 MPH, surged 2 times, then took off, let a smoke screen out that covered 3 cars, and took off like hell was coming. I noticed that after the "rattle" went away about 3 or 4 more times at additional stops, that is when I seemed to lose power. My Scangauge 2 does not show anything abnormal and states "0" DTC's. I am thinking the EBP sensor is bad and the exhaust pressure on the turbo is actually closing the vanes. It will spool up (audibly heard) but it drops to "0" PSI immediately after letting off the throttle. Is the EBP thought reaching? I pulled the EGR today, got the gasket kit from NAPA, and cleaned the EGR and blew out the carbon (pretty noticeable). I checked the CAC tube and it was tight and no signs of cracks, however, I did notice some oil in it (maybe a tablespoon). The shop told me the "rattle" was the unison ring but I question that, considering they quoted me $3,000.00 for a new turbo install. The is about 1/8" (maybe less) play in up and down motion of the turbo shaft and the turbine looks fine. The only thing I noticed was on the intake side of the turbo, the shop forgot to tighten the clamp the hold the rubber boot to the plastic tube that goes into the turbo. Thoughts?
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Old 01-12-2014, 01:18 PM
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A... A new turbo is about $1300.. And takes 2 hours to replace.. Now me being the good guy I am.. I charge $1650 for a new turbo installed... It's America and God forbid anyone made any money.. But the turbo would cost you $1300 at a ford house.. Watch youtube.. Do it your self! If you don't have the tools... Auto zone does.. Oreillys.. Whatever.. Buy the cheap **** once and use it.. You'll need a 10mm wrench.. 11mm deep socket.. 10mm short socket, 6" extension, and a 3/8" ratchet.. There's 3 bolts that go through the turbo... To hold it down.. Oh ya.. Get a long pry bar for the clamps...


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Old 01-12-2014, 01:33 PM
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The y pipe behind yohr turbo,broke, but it is really so tight that it will still built some pressure.... And the rattle is the sound of both metals hitting each other, i bet its the y pipe
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Old 01-12-2014, 01:56 PM
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Did he mention high pitched whistle?? No.. A blown bellow or cracked y pipe would create a high pitch whistle..


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