Low Boost ?
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Freshman User
Joined: Aug 2004
Posts: 30
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Low Boost ?
2005 f250 cc 6l auto fx4 15k miles
recently i've noticed that i'm only getting about 20 psi of boost (factory gauge)at wot, when it used to be up around 28 psi. no check engine light and when i checked for codes using the odometer/trip button is shows "dtc none". the truck is completely stock and i'm still getting 18.5 to 19 mpg on the highway. any ideas???
recently i've noticed that i'm only getting about 20 psi of boost (factory gauge)at wot, when it used to be up around 28 psi. no check engine light and when i checked for codes using the odometer/trip button is shows "dtc none". the truck is completely stock and i'm still getting 18.5 to 19 mpg on the highway. any ideas???
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
Clogged air cleaner element or restriction upstream of compressor.
Compressor air intake hose collapsed.
Compressor manifold hoses leaking.
Turbocharger turbine or compressor wheel damage
Turbocharger bearings seized.
Turbocharger variable vane hydraulic control valve not functioning.
Damaged charge air cooler (CAC).
Damaged/defective manifold absolute pressure (MAP) sensor or hose.
Take your pick this is all the low/no boost conditions.
Compressor air intake hose collapsed.
Compressor manifold hoses leaking.
Turbocharger turbine or compressor wheel damage
Turbocharger bearings seized.
Turbocharger variable vane hydraulic control valve not functioning.
Damaged charge air cooler (CAC).
Damaged/defective manifold absolute pressure (MAP) sensor or hose.
Take your pick this is all the low/no boost conditions.
