Question about 2001 Ford Windstar

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I am having a problem with a 2001 ford windstar. Can you help me? i have codes 171 and 174 systems running lean bank 1 and bank 2?

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Two bad O2 sensors is rare. The problem is before the sensor,intake vacuum leak, injector lower o-ring, IMCR stuck open or the control rod is off, vacuum hose(s) off, or MAF sensor. If this has a plastic upper intake, they had problems with o-rings.

Posted on Oct 07, 2009

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2002 ford windstar engine lean bank 1 and lean bank 2


Google your codes & then diagnose the
system & items related to the codes

Type: OBD Code PO 171 --or whatever the codes are

If you have Oxygen Sensor Codes, it is most likely the upstream sensors have failed, because you did not know they get replaced as preventative maintenance at 100,000 or when they fail, if that is how you take car of your vehicles

Aug 26, 2013 | 2001 Ford Windstar

1 Answer

If it rains my 01 ford windstar will not want to run. It will back fire and miss. When dry for few days it will run better engine light is on but if you clear the codes it will run like nothing is wrong....


Windstars are known for lean codes caused by upper intake plenum gaskets. Also, there is a small tube going into the air intake hose that will pull out if you tried to install an air filter. It goes into the air intake hose between the air filter box and the throttle body on the firewall side of the hose. Check it. As far as the EGR concern you would need to provide the exact code. The lean codes won't cause what you're describing. The symptom you're describing sounds more like a misfire. Windstars are known for ignition coils going bad due to hairline cracks allowing moisture in and causing the misfire. The coil is located behind the intake plenum. Also, windstars are known for fouling #'s 1,2 and 3 plugs with oil. Good luck. Be sure to have your rear axle and front subframe checked for cracks at a ford dealer. There's a safety recall on them and if it's too bad, Ford will purchase the vehicle for 1.5 times the book value if it's unsafe.

Apr 03, 2011 | 2001 Ford Windstar

1 Answer

Failed OBDII Diagnstic trouble codes P0761 and O1744 What does this mean?


code P0761-
Possible causes - Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid 3 valve
- Shift solenoid 3 valve harness or connectors
- Shift solenoid 3 valve circuit is open or shorted
P0761 FORD Description Shift solenoid valve 3 is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position. When is the code detected? The P0761 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck off code O1744- is not a code these are the ones I have found that come close
P0174 1999 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2000 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2001 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2002 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 2003 FORD WINDSTAR Fuel Injection System Too Lean Bank 2 P0174 FORD Fuel Injection System Too Lean Bank 2

Sep 28, 2010 | 1999 Ford Taurus

2 Answers

System too lean bank 1 and bank 2


to fix your problem , you need a set of islator bolts , located inside the plastic plantam the seals are bad on yours,this is a postive fix ,just fixed same problem on my 2001 windstar codes 171&174,Jerry in Orlando

Jan 27, 2010 | 2001 Ford Windstar

1 Answer

Yes my truck is 1998 ford f 150 4.2 an i have code po174






DTC code p0174 means "System too lean (Bank 1)"

Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exahust). On V6/V8/V10 engines



, Bank 2 is generally the side of the engine that doesn't have cylinder #1.

Jan 09, 2010 | 1999 Ford Windstar

1 Answer

An Engine Light came on the dashboard of my 2003 Ford Windstar.The code came up saying p0171 (Fuel System too lean.(Cylinder bank 1) What does this mean?


P0171=System Too Lean Bank 1,
not cylinder 1,it means the oxygen sensor on the drivers side exhaust was stuck on lean and set a code.
doesn't mean you need to change the oxygen sensor yet,first clear the code and see if it corrected its self.

Dec 16, 2009 | 2003 Ford Windstar

1 Answer

I have a ford windstar 2001 lx there are four code's i need info


#1 is the egr position sensor #4 Is for single cylinder misfire so this could be the coil or a bad plug or wire ..but with fords should check for a vacume leak that can cause a misfire to .....#2#3 are 02 sensors before i would change them i would check the mass air flow sensor ..Hope this helps

Nov 10, 2009 | 2001 Ford Windstar

1 Answer

P1507 P0171 & P0174 error codes on 02 windstar


p0171 indicates the system is running lean on bank 1,p0174 means the system is running to lean on bank 2 p1507 is an idle speed under run fault i'd suspect an air leak is the cause of your problem check air intake system for airleaks

Aug 06, 2009 | Ford Windstar Cars & Trucks

2 Answers

2001 Ford Windstar, check engine light has been on for a while, but started flashing last night. It ran out of oil in 1 month's time. Brand new transmission 1 month ago, they told us that it had lean...


if the light is flashing it most like hasly some sort of misfire or converter failure, p0171 and p0174 is lean bank 1 and 2, replace you upper and lower plenum gaskets, while they have they off have they replace your ignition coil, plugs and wires, windstars are known for 2 things, lean codes,(plenum gaskets) misfire(bad ignition coil)

Jul 09, 2009 | 2001 Ford Windstar

5 Answers

Bank 1 & 2 running lean


The lean condition is caused from the upper intake gaskets and isolation bolts not sealing properly due to time and poor sealing qualities from the factory ther was a service bulliten for this through ford to replace the gaskets,bolts,vaccum line,and lh side valve cover for this concern the oil was getting onto the rubber contaminating it causing a vaccum leak. If you never had the tsb done i would start there, also if there is high milleage on the vehicle i would also clean the maf sensor and resedt kam.

Oct 16, 2008 | 2001 Ford Windstar

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