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2004 ford taurus. eng codes po351, po352, po354. coils good, compression good, no vac leaks, injectors good. sparks at all plugs. cylinder 4 not contributing to power. anything would be helpful. Bob

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 140 Answers

SOURCE: what is the spark plug gap for a 2004 ford taurus

Hello, go to www.autozone.com and put your car in the "manage my vehicles" tab and then click on the "Repair info" tab and click on the links to get just about any info you need. If you need help just ask. Good luck.

Posted on Jan 23, 2009

motor1258
  • 6674 Answers

SOURCE: 2003 Ford Taurus spark plug diagram

Have a look here.

http://www.autozone.com/N,26200242/shopping/specsSelect.htm

Posted on Feb 02, 2009

  • 105 Answers

SOURCE: 2001 Ford Windstar runs rough.

remove the coil pack and look at bottom of it if it shows any cracks coil is bad very common on these vans if you have a noid light check for injector pulse on #4 if you have pulse and good blue spark most likely the injector is bad you have to remove upper plenum to get injectors out let me know how you make out

Posted on Jun 04, 2009

fingaz22
  • 1068 Answers

SOURCE: 2004 ford ranger edge has blinking check engine

have the crank sensor check for erratic operation. if you have done all of that then there is nothing else. and they way the computer knows it is misfiring (if it is) false code maybe and could be bad crank sensor. good luck

Posted on Oct 25, 2009

  • 15 Answers

SOURCE: Cylinder #1 misfire on a Ford Taurus SHO

Did you check the condition of the spark plug? If the plug is good do a compression check; a very low reading could indicate a sticking intake valve (sticking open). The easyest and cheapest way to fix a sticking valve is to introduce 1/2 can of Sea Foam into the air intake manafold; just follow the instructions on the can except you will use 1/2 can instead of 1/3 can. That Yamaha motor from what I have found collects tons of gunk on the valve stems. Good luck.

Posted on Feb 19, 2010

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My 2006 ford fusion sel v6 is having cylinder misfiring problems the codes it reads out are p0171 p0304 p0305 p0306 and p0300


p0171 is fuel injection system too lean - bank 1
possible causes
- Intake air leaks - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect fuel pressure - Lack of fuel - Faulty Mass Air Flow (MAF) sensor - Incorrect Positive Crankcase Ventilation (PCV) hose connection
p0304 is cylinder 4 misfire detected.
possible causes
Faulty spark plug 4 - Clogged or faulty fuel injector 4 - Faulty ignition coil 4 - Fuel injector 4 harness is open or shorted - Fuel injector 4 circuit poor electrical connection - Ignition coil 4 harness is open or shorted - Ignition coil 4 circuit poor electrical connection - Insufficient cylinder 4 compression - Incorrect fuel pressure - Intake air leak
p0305 is same as above but cylinder 5.
p0306 is same as above but cylinder 6.
p0300 is random misfire detected
possible cause
Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure

Oct 31, 2016 | 2006 Ford Fusion SEL

2 Answers

Getting trouble code p0301


Code 301 means cylinder one is not producing power.
Problem could be ignition, fuel, or mechanical.
If compression is good on all cylinders, check the fuel injector.

Mar 08, 2015 | 2001 Ford Explorer

1 Answer

2004 ford taurus 3.0 dohc missing ecm codes po351 po352 po354 replaced coils and plugs all new gaskets checked all hoses no leakes.


Do you know for a fact cylinders one two and four are firing ?
The codes are for circuit problems with the coils on those cylinders. The coils get power from the PCM power relay and the engine computer grounds each coil to fire the spark plug. The codes mean the coils are not firing, and since you replaced the coils there may be too much resistance in the circuits coming from the computer.

Feb 28, 2014 | 2004 Ford Taurus

1 Answer

1999 ford taurus- yellow engine warning light keeps showing cylinder 1 misfire. I have: 1. Changed out plugs and wires, 2. switched wires around, 3. replaced fuel injector, 4. replaced coil. Still...


Yes.
You could have a leaking head gasket or a crack in the cylinder head.
After driving the car for a few days the spark plug should show signs of coolant on the tip.
You may want to do a compression test to see if that cylinder is low on compression too.

Feb 08, 2013 | 1999 Ford Taurus

1 Answer

Po351 po352 po353 po354 po355 po356


Misfire P0351,P0352,P0353,P0354,P0355, P0356 Meaning secondary circuit A,B,C,D,E,F . You may need a PCM If your car has a NGC controller it may have melted the ignition coil mounted on the spark plug. For these to happen You have a defective coil driver circuit in the PCM . This is a multiple coil failure, Before we go there lets do the basic are the connector connected? How about the conection at the juction area all connected, then pcm failed. These are secondary what is the secondary the signal that allows the coil to collapse the magnetic field and gives spark.

Apr 23, 2011 | Chrysler Concorde Cars & Trucks

2 Answers

Code po351 replaced coil and plug on second cylender frm front on passenger side still missing bad.please help.only car


It's probably the 4th which is all the way in the back on the left side when you are standing in front of the vehicle facing the engine. There is a water line that runs above that cylinder and drips condensation into it allowing for problems. It's best to replace the plugs AND the (coil pack--which run $60 each).

Sep 16, 2010 | 1997 Ford Expedition

2 Answers

Vehicle is showing a code PO304 on a 2001 Ford Taurus. I have changed the fuel filter, the spark plugs, the coil,the air filter all just recently. Last year, I changed out the plug wires. Does anyone have...


Do you have spark at the number four cylinder? Check that if spark is present , then you should swap the injector from four to five and see if the miss goes with the injector. If not then you will need to test the engine compression .

May 30, 2010 | 2001 Ford Taurus

2 Answers

I have a 99 Ford Taurus that keeps showing a code PO301 #1 cylinder misfire. I have changed spark plus first, and it came back on. I next changed the wires and it came back on. I took the coil to Autozone,...


If the plugs, wires, and coil are all good then it can be a partially clogged injector, or low compression on that cylinder. It can also be a bad ECU. My cousin had a 99 Taurus with the exact same problem and it turned out to be the ECU which he had to replace. The ECU is very expensive so make darn sure everything else is good before you replace the ECU. It could be the coil has an intermittent problem and may show good especially when cool. You might try putting that coil on a different plug position, resetting the ECU, and see if you get the same code PO301. Run a compression test on all cylinders to see if you have good compression. Add a can of Seafoam Fuel Treatment to a full tank of fuel to make sure the injectors are clean. Check all wiring closely for frayed wires or loose connections. Eliminate all other possibilities before looking at the ECU itself.

Nov 30, 2009 | 1999 Ford Taurus

2 Answers

2004 LINCOLN LS 3.0,CODE PO351 WILL NOT CLEAR,ENGINE WILL NOT REACH OVER 3000 RPM,COIL A IS FIRING,AND INJ IS SPRAYING FUEL,GOOD COMPRESSION,REPLACED ECM,BUT STILL HAVE MIS FIRE,ANDPO351 CODE THAT MY...


I assume this has 8 coils,the one you are checking,is it the right one,have you located the exact cylinder miss fire?I believe,if I am not wrong,it has two coils per cylinder,It is showing this on the code.It is the primary coil,coil A ,the secondary coil is not showing up,any way, it is showing that the boot on the coil is leaking,and not sparking the spark plug.Let me know if I can help.

Nov 20, 2009 | 2004 Lincoln LS

2 Answers

Have a 2003 Taurus, 3.0 engine that has a misfire on #2 cylinder. Replaced all spark plugs, wires, coil, replaced the fuel injectors, crank sensor, cam sensor, still have a misfire on #2 cylinder. It has...


What the miss there before you started replacing parts or did you replace some of them as maintenance items. Like the plugs. Possible that the parts store gave you one with a crack in it??? Also how about a vacuum leak at the intake gasket. You said you have compression. Have you tried checking running compression. A broken valve spring can cause good cranking compression, but cause no compression when it's running.

Aug 16, 2009 | 2003 Ford Taurus

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