2000 Ford F150 error code PO171

2000 FORD F-150
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RICH1969
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2000 Ford F150
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got an error code - PO171 - and don't know what it means. Any help/suggestions appreciated!
Jul 8, 2008 at 9:16 AM
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BMRFIXIT
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Code p0171
is a vacuum leak related code
check PCV valve and related vacuum lines
check intake manifold gasket check oil cap
Jul 9, 2008 at 6:32 AM