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Im hoping you can give me some direction here. I have a 2000
good morning! Im hoping you can give me some direction here. I have a 2000 ford f150, 4.2l v6 5 speed. I purchased it 7 months ago. The Motor was neglected when I bought it, but came to life with a go… read more
EricFromCT
EricFromCT
Auto Technician
4,529 satisfied customers
Have a 2005 Ford F-150 5.4 triton fx4. Has no power very
Have a 2005 Ford F-150 5.4 triton fx4. Has no power very sluggish acts like misfiring. Codes 171 174 came up also misfires on several . Thought it was a clogged cat had it checked by muffler shop show… read more
Cardoctor71
Cardoctor71
Retired Master Certified Technician
High school graduate
669 satisfied customers
2003 Ford F-150: oxygen sensors are working, seal..air intake..vaccum
2003 Ford F-150 Code 171 and sometimes 174 The oxygen sensors are working, seal on air intake, PVC, vaccum lines checked, however, can run for 206 miles then codes are reappearing what is going on?… read more
Ron
Ron
ASE Certified Technician
Vocational, Technical or Trade Scho
25,182 satisfied customers
codes p0171/p0174..Car runs good with eng lite and codes.
2001windstar 3.8L. Have eng lite on with codes p0171/p0174. Car runs good with eng lite and codes. Recently I went to the store and when I came back the car wouldnt start. eng turns over ok and tries … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
Ford: rv..V..obd codes 171 and 174 show up on a recent trip.
I have a 2006 Hurricane RV with a Ford V-10. I had OBD codes 171 and 174 show up on a recent trip. I used a truck repair center for assistance. They did a smoke check on the vacuum system with negativ… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,838 satisfied customers
1997 Ranger: cylinders..plug wires, egr, oxygen sensors..fuel filter
I have a 1997 Ranger with the 4 liter engine that is missing on three cylinders. I've replaced plugs, plug wires, EGR, oxygen sensors and fuel filter and it still runs the same. The test codes show th… read more
Ted G.
Ted G.
Sales Manager
Vocational, Technical or Trade Scho
5,478 satisfied customers
That goes from the exhaust manifold to the egr valve was broken
I have codes 1451, 171, 174. I found that the tube that goes from the exhaust manifold to the egr valve was broken. Do you think this could of caused these code, or should I be looking at something el… read more
Steve
Steve
Ford tech Specializing in electronics
Vocational, Technical or Trade School
6,741 satisfied customers
2001 Ford F-150: 6 cyl has check engine light-- code po 171 and po 174
My 2001 Ford F-150, 6 cyl has check engine light-- code PO 171 and PO 174. How can this be reconciled?… read more
Ray M.
Ray M.
Diesel Technician
Vocational, Technical or Trade School
3,070 satisfied customers
1996 taurus: car runs..30 mph..no check engine light comes
1996 taurus.if the temp outside is below 62,or if it is raining car runs like an old john deere tractor. has no power, will only run 20-30 mph, seemingly until it reaches right temp. codes 401,420,430… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,838 satisfied customers
My 4.9L 6cyl eddie bauer new, installed 3.73 ring/pinion
bought my 4.9L 6cyl eddie bauer new, installed 3.73 ring/pinion and pulled a small 5WT for years. vehicle now at 131,000 and running very sluggish with engine code 0171 or 0174 I can't recall which. I… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
F-150: cant figure..p0172,p0174,p0175,p0307,p300,p0301..really rough
Hi, I've got a bunch of codes on my 06 f-150 5.4 liter truck that i cant figure out what the problem is. It has p0172,p0174,p0175,p0307,p0300,p0301,p0305,p0308p0358,p0351, runs really rough and smells… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,838 satisfied customers
2002 Windstar: liter engine..error codes..emissions..#402 Excess EGR
I have a 2002 Windstar w/3.8 liter engine. The error codes I get when I try to get it past emissions are as follows. #402 Excess EGR, 171 Bank 1 too lean, and 174 Bank 2 too lean. I've performed an oi… read more
Kenny Z.
Kenny Z.
Ford Senior Master Technician
High School or GED
6,050 satisfied customers
2000 Ford Windstar: engine wont..lower manifold gaskets..intake
I have a 2000 Ford Windstar 3.8 ltr. The engine won't hold a good idle. I have replaced the upper and lower manifold gaskets and cleaned the intake. I replaced the PFE and IAC valves as well. The engi… read more
Shawn
Shawn
Senior Master Technician
Vocational, Technical or Trade Scho
359 satisfied customers
2002 Ford Windstar: Check engine..intake manifold..manifold and gasket
I have a 2002 Ford Windstar with 3/8 engine which has 117,000 kilometers ( about 70,00 miles) "Check engine "light came on steady. Shop tells me codes are 171 and 174. They said intake manifold and ga… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,567 satisfied customers
99 Ford F-150, 4.2 L, 95,000 miles - - Service engine light ...
99 Ford F-150, 4.2 L, 95,000 miles - - Service engine light came on about 2 months ago, changing parts since. Replaced upstream oxygen sensors (code 171 and 172), OBD2 reader still says 171 and 174. R… read more
Rmldaytona
Rmldaytona
ASE certified technician
College
1,386 satisfied customers
99 mercury cougar: check engine light With codes 171 174 420 1131 1151
i have a 99 mercury cougar 2.5 6 cylindar engine i have a check engine light With codes 171(NNN) NNN-NNNN1151 what are these codes pointing to… read more
Virtual Wrench
Virtual Wrench
Owner of LJ Auto Repair 37 years
Associate Degree
14,398 satisfied customers
1998 Ford Econoline: Lean ) Stumbles..highway speed..o2 sensors..fail
1998 Ford Econoline 150 Diag Codes 171 and 174 (Banks Lean) Stumbles at idle. Seems fine at highway speed. (Doesn't seem likely BOTH O2 sensors would fail at same time.) I Don't HEAR any vacuum leaks.… read more
HDGENE
HDGENE
6,601 satisfied customers
95 ford windstar: light 20 miles later light comes..p0171..cant find
have 3 codes pulled from 95 ford windstar 3.8 replaced egr ,dpf and vacumm line to reset light 20 miles later light comes on with a 1407,p0171 and p0174 cant find any info on these codes except 171 17… read more
Jacob
Jacob
Ford Fleet technician
Vocational, Technical or Trade Scho
154 satisfied customers
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Ron

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