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Re: More P0171/174 fun: '03 Expedition 4.6L
Posted to Technical Theory Forum on 5/21/2007 1 Reply

as Rusty said, its not a vacuum leak,

can also tell the person was accelerating, the vehicle had been running at least 10 minutes when the code set, the torque converter clutch had just engaged.

both banks were equally affected by the lean condition, which... Login to read more.

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