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Dieseljunky2, Ford Mechanic
Category: Ford
Satisfied Customers: 3946
Experience:  ASE Certified, Ford Certified, Cummins Certified, & 20+ years in field experience
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Ford Expedition 4x4 got codes p1131 and p1151 on an expedition

Resolved Question:

got codes p1131 and p1151 on an expedition what are they
Submitted: 6 years ago.
Category: Ford
Expert:  Dieseljunky2 replied 6 years ago.

Dieseljunky2 :

Hello, what engine do you have, the year model, and is it 4x4. Thanks

Customer :

it is 4x4 5.1 2001

Dieseljunky2 :

This indicates the fuel system cannot supply enough fuel for the engine to operate correctly. There are a few common causes of this. First a leaking pcv hose, check it on the passenger valve cover all the way around to where it hooks on the intake manifold. If this looks good, you will need to test the fuel pressure (35-45 psi) to see if the fuel pump is bad or you have a clogged fuel filter. Thanks

Customer :

runs pretty good just will not idle i will check that out and let you know

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