Question about 2002 Ford Taurus

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Engine code p0771 p0174

Rough idle in gear and runs good at road speeds

Posted by Anonymous on

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+

po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Posted on Dec 15, 2008

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SOURCE: Where is the fuel pressure regulator located on an 2002 f150 v6?

in the center of the motor,in the rear on the fuel rail

Posted on Jan 19, 2009

clarktravis8
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SOURCE: 2005 Ford Taurus SE 3.0L V6 OBD Codes P0171 and P0174

The P0420 code is a Catalytic converter efficiency code check the compression.Swap the #1 injector to a different location to see if the code follows.Test the coilpak. A cracked exhaust manifold is the most likely cause p0171 and 0174 Induction air leaks, vacuum or some kind fuel restriction, weak fuel pump, restricted fuel filter etc.You also could have an exhaust leak near the upstream o2 sensor. If youtake it in they will probably use smoke to find out where the leak is.

Posted on Apr 22, 2009

jaysonemanme
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SOURCE: rough idle in gear 1997 ford contour 4 cyl ohv

probably a dirty idle air control valve

Posted on May 20, 2009

  • 1 Answer

SOURCE: I have a 2004 freestar

I just had the same thing. Engine light came on. Rough idle. Codes P0171, P0174, P2195, P2197. Within a week the idle got so bad it would die at stop lights. Seemed like a vacuum leak affecting the idle. Found it today. The elbow where the PCV tube enters the vacuum port on the upper intake was degraded, collapsed and had a whole in it. Wondered why it degraded. I disconnected the tube from the PCV valve and found it quite oily. I think the oil sat in the elbow at the intake because it is flat on top of the engine and could pool there, causing the rubber to degrad. Found a preformed piece of coolant hose at O'Reilly that was the right diameter and cut it to length. Put it on, runs like a charm. I ordered a new PCV valve because I think too much oil was coming through it and caused the hose failure._409.jpg_410.jpg

Posted on Jan 05, 2011

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WHAT CAN I DO TO FIX MY AUTO HAVE CODES P0171 P0174 01000 P2195 P2197 WHAT ARE THE CODES.


P0171 & P0174 are lean codes.this can be cause by a vacuum leak. One of the symptoms is a ruff idle when cold.

You can listen for it or you can have it smoke checked by a shop. Most common causes are intake plenum gaskets and rotted PVC hoses.

Feb 18, 2015 | 2004 Lincoln LS

1 Answer

94 cadillac eldorado fuel filter replacement


It could be a fuel problem, but in most cases the rough running would continue at road speed.
You could certainly change the fuel filter and see what happens.
A rough idle but no problems on the road would point to a vac problem or maybe a burnt valve. A fuel or ignition problem would be at most speeds including when you put the engine under a load.
Its possible to have a faulty injector on one cylinder that is bad enough to cause a miss at idle but smooth out on the road, but that is a rare occurance.

Sep 21, 2012 | 1994 Cadillac Eldorado

1 Answer

92 NISSAN WITH BOGGING AT 2800 3500 RPM AND AT LEVEL SPEED 4CYL AND 5 SPEED


For this types of problem,there are few help inks to troubleshoot the problem.Click the link below to go through the troubleshooting procedure to resolve the issues :----Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------van idles rough? http://howtobyme.blogspot.in/2012/01/2004-ford-freestar-van-idles-rough.html
--------------runs lean and idles rough? http://technoanswers.blogspot.in/2012/02/ford-runs-lean-and-idles-rough.html
-----------Car still runs Rough after tune up? http://howtobyme.blogspot.com/2011/12/car-still-runs-rough-after-tune-up.html
------------Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed? http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html
----------High rpm in neutral? Inconsistant high RPM in neutral? http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
------------Engine Backfires? http://technoanswers.blogspot.in/2012/02/jeep-backfires.html----------- Nissan stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------
Nissan Pathfinder Backfires? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
---------How to adjust rpm? http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
------------Engine cuts out at 3000 RPM? http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
----------This will help.Thanks.

Feb 17, 2012 | 1992 Nissan Pickup

2 Answers

Po174


A P0174 lean code for bank 2 is the cylinder bank on the LEFT (driver) side of the engine on Ford vehicles with a transverse-mounted V6 engine and front-wheel drive. This code is not set on four cylinder engines (no bank 2).
WHAT A LEAN CODE MEANS
A lean fuel condition may exist if the engine is sucking in too much air and/or the fuel system is not delivering enough fuel. If bad enough, a lean fuel condition may cause lean misfire, a rough idle, hesitation or stumble when accelerating, and/or poor engine performance . Unmetered air can enter the engine through a vacuum leak, a dirty airflow sensor that is not reading airflow accurately, an EGR valve is not closing and is leaking exhaust into the intake manifold, an EGR valve that is allowing too much flow (because the EGR differential pressure sensor that monitors EGR flow is faulty and is under-reporting EGR flow).
If the problem is not enough fuel, the underling cause may be a weak fuel pump, restricted fuel filter, leaky fuel pressure regulator or dirty fuel injectors.

Dec 24, 2010 | Ford Explorer Cars & Trucks

1 Answer

My 2001 Olds Aurora idles rough, could it be the map sensor, or mass air flow sensor. It runs fine going down the road.


If this is the 4.0L engine it is very common to have the Air Intake Plenum gasket crack. About a $30.00 part and 2 hours labor.
First, see if you have any codes. For the situation I describe about you should see P0171/P0174.
The other sensors could also be the issue. Most ODB-II scanners will allow you to read "live data". This will go a long way in telling you where the problem is.

Aug 20, 2010 | 2001 Oldsmobile Aurora

1 Answer

2003 Ford Expd. running rough @ idle -


There could be many issues. These codes read your engine is running too lean. Check : all your vacuum hoses for leaks, PCV valve and hose, MAF sensor. This may require an experienced technician to figure this out. Hopefully I help'd!!

Apr 05, 2010 | 2003 Ford Expedition

2 Answers

2000 Ford Explorerer rough idle When cold


what codes are present? If it is lean codes P0171/P0174 problem is most likely the orings leaking between upper and lower intake manifold if this is a 4.0L

Feb 11, 2009 | 2000 Ford Explorer

1 Answer

Engine light


you have to scan it and see what code is in it if it's a p0171 or p0174.check for vaccum leaks.they will cause both your engine light to come on and run rough.if you have ap0301.p0302 ect.that means you have a miss fire

Jun 18, 2008 | 2002 Ford Taurus

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