P0171 and p0174

Mikeq89
0

Asked by Mikeq89 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
11,075

.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

2 out of 2 people think this is helpful.
FordNut
11,075

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

2 out of 2 people think this is helpful.

Your Answer

Related Questions

  • 01 expy 5.4 p0171 p0301 runs rough 6 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

  • 2001 ford expedition 125k miles P0171 and p0174 7 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

  • 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

  • P0171, P0174 check engine codes - possible electrical problem? 16 answers

    I have a 1999 Ford Windstar 3.8L with the check engine light on and reading codes p0171 & p0174. after a bachelors degree worth of research I have taken many steps to troubleshoot and fix the pro...

    1999 Ford Windstar 3 Dr STD Passenger Van

    -

    Maintenance & Repair

  • DTC p1314 p0430 p0174 p0171 p1000 p0306 p0304 p0302 1 answer

    just bought 2002 jaguar x type 3.0 & 8 codes popped up could it all be same cause or causes I'm thinking front o2 sensor & vacuum leak the codes are p0302 p0304 p0306 p0171 p0174 p0430 p1000 p1314 ...

    2002 Jaguar X-Type 3.0

    -

    Maintenance & Repair

Expedition
Looking for a Used Expedition in your area?
CarGurus has 16,549 nationwide Expedition listings starting at $1,995.
ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 lightGear
lightGear
Reputation 720
#2 kbro
kbro
Reputation 450
#3 LouB
LouB
Reputation 320
View All

Related Models For Sale

Used Ford Explorer"
1,173 Great Deals out of 45,104 listings starting at $900
Used Chevrolet Tahoe"
1,019 Great Deals out of 32,337 listings starting at $1,780
Used Lincoln Navigator"
128 Great Deals out of 4,308 listings starting at $3,600
Used Ford F-150"
2,253 Great Deals out of 183,635 listings starting at $1,000
Used Chevrolet Suburban"
746 Great Deals out of 18,721 listings starting at $1,850
Used GMC Yukon"
323 Great Deals out of 10,788 listings starting at $2,685
Used Cadillac Escalade"
261 Great Deals out of 7,040 listings starting at $1,595
Used Ford Excursion"
32 Great Deals out of 987 listings starting at $2,995
Used GMC Yukon XL"
364 Great Deals out of 10,694 listings starting at $2,550
Used GMC Yukon Denali"
175 Great Deals out of 4,934 listings starting at $2,990
Used Toyota Sequoia"
131 Great Deals out of 4,828 listings starting at $3,500
Used Dodge Durango"
361 Great Deals out of 20,615 listings starting at $1,800
Used Jeep Grand Cherokee"
1,086 Great Deals out of 53,734 listings starting at $995
Used Ford F-250 Super Duty"
627 Great Deals out of 33,429 listings starting at $1,995

Used Cars For Sale

2014 Ford Expedition For Sale
34 Great Deals out of 5,467 listings starting at $28,500
2013 Ford Expedition For Sale
47 Great Deals out of 891 listings starting at $27,863
2012 Ford Expedition For Sale
51 Great Deals out of 795 listings starting at $18,774
2011 Ford Expedition For Sale
52 Great Deals out of 953 listings starting at $17,950