2000 V10 throwing fuel mixture lean code
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Cross-Country
Joined: Aug 2005
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2000 V10 throwing fuel mixture lean code
Let my wife drive the Excursion for a couple of days so of course it’s now giving me lean fuel codes PO171 & PO174. Anybody know one or more specific fixes?
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Cross-Country
Joined: Aug 2005
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Miles, Lucas
It’s at about 486K right now, used to put Lucas in regularly after I cleaned the throttle body at 117K, hasn’t needed cleaning since. But I’ve got some Lucas, so I’ll stick that in the tank now.
Fleet Mechanic
Joined: Feb 2011
Posts: 1,812
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From: Thousand Oaks, CA
Both lean codes leads me to think there is a vacuum leak between the MAF and the intake manifold.
Check the PCV hose for cracks/softness, especially the last few inches where it connects to the engine.
Check the air intake plenum between the MAF and throttle body for cracks/leaks.
Check the throttle body and IAC gaskets.
Do you clean the MAF regularly?
Check the PCV hose for cracks/softness, especially the last few inches where it connects to the engine.
Check the air intake plenum between the MAF and throttle body for cracks/leaks.
Check the throttle body and IAC gaskets.
Do you clean the MAF regularly?
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Big_D_v10
Excursion - King of SUVs
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May 31, 2011 06:35 PM
