P0171/p0174 | Ford Explorer Forums - Serious Explorations

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P0171/p0174

andres1

New Member
Joined
January 29, 2007
Messages
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City, State
Chesapeake, Virginia
Year, Model & Trim Level
01 Sport trac
I have a 2001 Explorer Sport Trac w/96000 miles.
The check engine light came on and the codes are P0171&P0174. Autozone said to replace the MAF sensor for about $125.
Is there a trick for checking for vacuum leaks other than listening which is difficult over the rest of the engine noise.
 






Yes, spray carb cleaner aroundthe vacuum lines and see if the engine runs differently -- be careful though.

-Drew
 






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