Turbo Question
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Elder User
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Turbo Question
How can you tell the difference between stuck vanes or a bad solenoid?
I'm having some turbo issues. My VGT duty cycle is all over the map and my boost is sometimes low but not always.
I'm having some turbo issues. My VGT duty cycle is all over the map and my boost is sometimes low but not always.
Hotshot
Joined: Apr 2010
Posts: 19,055
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From: Saratoga Springs,UT
IMO deluted oil would Wreak more Havic on other things Main Bearings,lifters,turbo float bearings,injectors ect.. than it would on the VGT valve. But still could be hard on the VGT Valve
the VGT valve just controls oil flow to the piston on one side or the other to control Varible Veins in the turbo
Do you have Diesel Fuel in your Oil???
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Elder User
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I don't know yet. I kind of suspect though. I'm sending a sample in for analysis from my next oil change.
I thought I had read that in the turbo tech guide but it was in reference to the bearings.
"Note: For 6.0L Powerstroke diesel engines with engine oil diluted with four or more quarts
of fuel, the turbocharger endplay needs to be checked (.001” - .004” allowable). Also
check radial shaft movement by lifting the shaft up and rotating the shaft to check for
compressor or turbine wheel to housing contact. If any wheel contact is noticed, the
turbocharger must be replaced."
I thought I had read that in the turbo tech guide but it was in reference to the bearings.
"Note: For 6.0L Powerstroke diesel engines with engine oil diluted with four or more quarts
of fuel, the turbocharger endplay needs to be checked (.001” - .004” allowable). Also
check radial shaft movement by lifting the shaft up and rotating the shaft to check for
compressor or turbine wheel to housing contact. If any wheel contact is noticed, the
turbocharger must be replaced."
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whalebus2112
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
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Dec 2, 2012 08:25 PM
