P0171 and p0174

Mikeq89
10

Asked by Jul 13, 2014 at 04:29 AM about the 2001 Ford Expedition Eddie Bauer

Question type: Maintenance & Repair

Hi I can't seem to find the problem I
did the flowing:

2 Answers

FordNut
135,035

.Both banks too lean ....http://engine-codes.com/p0171_ford.html .....and http://engine-codes.com/p0174_ford.html ..usually the MAF dirty of failed Or a vacuum leak. See http://www.smogtips.com/smog-question/1018/What-causes-Trouble-Code-P0171-and-P0174-Ford-Expedition

4 out of 4 people think this is helpful.
FordNut
135,035

There is another article at: http://troubleshootmyvehicle.com/ford/4.6L-5.4L/troubleshooting-p0171-and-p0174-page-1 ..... that may help too

5 out of 5 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 2001 ford expedition 125k miles P0171 and p0174 9 answers

    Can't find the problem •I replace the pcv hose •Clean the mass air flow •Replace the fuel filter (old one wasn't bad) •Sprayed the whole car with carb cleanner and nothing •Replace the throttle...

    2001 Ford Expedition

    -

    Maintenance & Repair

  • 01 expy 5.4 p0171 p0301 runs rough 14 answers

    Last week our 2001 expedition started running rough during a rain storm. We took it home and parked it for a couple days to let it dry out. Still ran rough after drying but now had a check engine l...

    2001 Ford Expedition XLT 4WD

    -

    Maintenance & Repair

  • my expedition is giving me codes P0171 and P0174 which means system too lean on bank1 and bank 2 2 answers

    I actually had 3 codes when i took to shop they replaced intake gaskets done coolant flush and replaced # 2 sparkplug cause it was cracked do from leak of intake gasket and that was the 3rd code i m...

    1998 Ford Expedition 4 Dr XLT SUV

    -

    Maintenance & Repair

  • I have a 2003 Ford Expedition. 2 answers

    the check engine light came on and when scan the codes B 1600, B 1602, P 0171, P 0174 came up. What do those mean?

    2003 Ford Expedition

    -

    Maintenance & Repair

  • i have a 1999 ford ranger 4.0l 4x4 with p0171 and p0174? 6 answers

    I have p0171 and p0174 codes, I have replaced the upstream o2 sensors, fuel filler neck, mass air flow sensor, ect temp sensor and I still have the check engine light come on! I am running out of ide...

    1999 Ford Ranger XLT Extended Cab Stepside SB

    -

    Maintenance & Repair

Expedition

Looking for a Used Expedition in your area?

CarGurus has 18,537 nationwide Expedition listings starting at $1,450.

ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,050
#2 oldtimer37
oldtimer37
Reputation 970
#3 lightGear
lightGear
Reputation 960
View All

Related Models For Sale

Used Ford Explorer"
929 Great Deals out of 63,645 listings starting at $995
Used Chevrolet Tahoe"
813 Great Deals out of 34,037 listings starting at $1,500
Used Chevrolet Suburban"
442 Great Deals out of 23,236 listings starting at $1,295
Used Lincoln Navigator"
122 Great Deals out of 5,786 listings starting at $1,950
Used Ford F-150"
2,493 Great Deals out of 194,215 listings starting at $1,500
Used GMC Yukon"
256 Great Deals out of 9,380 listings starting at $2,300
Used GMC Yukon XL"
156 Great Deals out of 6,671 listings starting at $2,000
Used Ford Excursion"
5 Great Deals out of 841 listings starting at $3,995
Used Cadillac Escalade"
273 Great Deals out of 10,040 listings starting at $3,000
Used Toyota Sequoia"
147 Great Deals out of 5,161 listings starting at $2,900
Used GMC Yukon Denali"
184 Great Deals out of 9,279 listings starting at $4,000
Used Dodge Durango"
320 Great Deals out of 18,650 listings starting at $995
Used Ford F-250 Super Duty"
382 Great Deals out of 41,353 listings starting at $2,495
Used Toyota 4Runner"
283 Great Deals out of 15,427 listings starting at $1,592

Used Cars For Sale

2017 Ford Expedition For Sale
2,693 listings starting at $39,039
2016 Ford Expedition For Sale
20 Great Deals out of 4,348 listings starting at $33,900
2015 Ford Expedition For Sale
102 Great Deals out of 2,183 listings starting at $26,991
2014 Ford Expedition For Sale
45 Great Deals out of 786 listings starting at $18,500
2013 Ford Expedition For Sale
40 Great Deals out of 829 listings starting at $17,450