Question about Ford Taurus

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2001 Ford Taurus SE keeps throwing an engine misfire code. Started after I had mechanic replace wire set and old plugs with Iridium plugs.

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  • Expert
  • 391 Answers

It could be down to a bad plug ive had it quite a few times now , fitted new spark plugs and it runs with a miss fire. Usually the plug has a hair line crack in it.

Posted on Jan 13, 2019

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  • Ford Master
  • 20,187 Answers

Go back to stock plug type

Posted on Jan 12, 2019

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  • Ford Master
  • 1,615 Answers

The time factor is merely coincidental. Have your engine checked to find which cylinder is misfiring and change the fuel injector on THAT cylinder. The last digit of the code is the one that needs attention. You've already changed the plugs and wires, so you know already they aren't the problem.

Posted on Jan 12, 2019

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Posted on Jan 02, 2017

WeListen2You
  • 538 Answers

SOURCE: 97 ford taurus: Cylinder 2 misfire

well..fuel injection systems are more than the electronic part. I suspect you are dealing with compression or injector fouling issues..

Posted on Oct 21, 2008

wyatt1582
  • 453 Answers

SOURCE: 2001 ford taurus with check engine light on. code

Make sure you replaced the right one there are two sensor's for the coolant, one takes coolant temp and the other one runs the fans for the radiator. Both are located on drivers side of the block. 2 wire leads on each how ever both are different in sending readings to the computer.Both look just alike also. Just make sure you replaced the right one. Or replace both.

Posted on Sep 15, 2009

  • 480 Answers

SOURCE: 1999 Ford Taurus 3.0L V6 24V DOHC Duratec Engine

i would check the plug wires and the coils you check the plug wires for bad spots at night start the motor up and look at the plugs if you see a spark arch out the wire and to a peace of metal then the plug wires need to be replace.

Posted on Dec 16, 2010

jturcotte
  • 8841 Answers

SOURCE: i have a 2004 ford freestar 3.9 The engine light

Hi, the first step I recommend is to check for spark. You can do this by starting the car and then carefully pulling up the boot to the #1 ignition wire at the coil. If sparks are jumping inside the boot, you have spark and the ignition system is working.
jturcotte_504.jpg
1. Ignition: If there is no spark, shut of the engine and use an ohmmeter to check the impedance of the coil. Take the boot off, and connect your ohmmeter from the coil terminal to the engine ground. The resistance should be around 10-20 kohms. If not, replace the coil. If yes, the problem is the ignition module under the coil.

Now, assuming you have spark (which I believe you do, because the coil runs 2 cylinders, and you only have one cylinder that is misfiring), the problem will be a lack of compression or a bad injector (or possibly the injector wiring).

Note: I will provide repair steps once the troubleshooting is complete and the problem identified.
Also, if you do not have a multimeter, you can get one for $10-20 at radio shack or even Walmart. It will save you money overall--or maybe you have a friend that you could borrow a meter from.

2. Injector: The next easiest test to run is to see if the injector solenoid is clicking. You can do this by holding a long screwdriver to the injector and hold the other end of the screwdriver to your ear. With the engine running, you should hear the injector clicking. If not, you have a bad injector or a wiring problem. To determine whether the problem is the injector or the wiring, pull the connector off the injector and measure the AC voltage in the connector with the engine running. The voltage should be 1-2 volts or similar to that voltage of any other injector connector.
If the voltage is good, but the injector is not clicking, replace the injector.

3. Valves/compression: the last possible reason for a misfire is a lack of compression. The intake valve must open to accept a fuel/air charge, and both valves must be closed for the cylinder to fire. Sometimes an exhaust valve will burn and not hold compression. A blown head gasket can also cause this problem. The test we use to check the valves is a compression test. You can borrow or purchase a compression tester if you get to this point. Remove a few of the spark plugs including the cylinder that is misfiring. Screw the compression tester into the spark plug hole and crank the engine for a few revolutions. Record the pressure on the gauge, release the pressure, and go on to the next cylinder. If the pressure is much lower on any cylinder as compared to the highest cylinder, the cylinder head will have to be removed to correct the issue.

Please let me know the results of your troubleshooting and feel free to ask questions as you go.

Posted on May 20, 2011

wolf_charmer
  • 1 Answer

SOURCE: 2001 ford taurus p0301 and p0303

Hi, i got a 97 ford taurus lx 6 cyl. anyways, i got a flashing engine light n i have misfires in cylinders 2, 3 n 4 n it is running rich. i get many codes. im getting ready to take a long trip n move to michigan so im trying to figure out the problem with my car. we have replaced the injectors,plugs ,wires,fuel filter, going to try to change the coil pk n put new mufflers on it. can anyone help me with this issue on my car. im a disabled lady needing help..thank u....

Posted on Apr 06, 2012

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1 Answer

What would cause a 2004 Ford Taurus to have codes p0300 and p0316?


The P0300 is a general misfire code, and can be a result of numerous things. Coils, wires, plugs, injectors, sensors, mechanical issues etc. Being that you are throwing a P0316 in conjunction with the P0300, I would think that they are related, but rather than throw money at the vehicle>, do a few things first.
Replace your plug wires, chances are they are at, or close to the end of their life,Check the connector going to the CPS for corrosion or a poor connection. Clear the codes and see if the P0300 and P0316 codes come back.In the event that the codes do come back, or just one of them, you can rule out the possibility of the plugs and wires and move on to more possibilities.If the scanner you are using has the ability to monitor misfires, this could be a helpful tool to identify which cylinder(s) the misfire(s) is/are isolated to.In the event the spark plug wires don't fix your issue, and it is isolated to a specific cylinder, or group of cylinders it could tell you where to look next.

Feb 28, 2015 | 2004 Ford Taurus

1 Answer

Ford taurus p0300


Neither was the problem on a 2007 vehicle,still sort of new

You do need to change plugs every 3 years

I would change the Front Oxygen Sensors, if you have 100,000
miles on them---still not the misfire issue

The misfire is the ignition control module, if that is what you have,
since you mentioned plug wires,some motors have individual
ignition coils & they fail a lot on a ford

Those codes are of no use, their random misfires & misfire
on first 1,000 rpm when starting the motor

Have to diagnose each cylinder & any module issue

Whom ever did your work failed to do anything but replace
parts,no road test,no scanner data checking or code diagnoses

Don't go to the chain store or auto parts shops
Go to an old time local shop

Apr 02, 2014 | 2007 Ford Taurus

1 Answer

2001 Ford Taurus 3.0 has code reading P0302


rouble Code: P0302

Cylinder Number 2 Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM system. Base engine mechanical problem that affects only Cylinder 2. Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector) . Ignition system problem (coil, plug) that affects only Cylinder 2 .

Aug 18, 2012 | 2001 Ford Taurus

2 Answers

2001 ford taurus 3.0 v6 code p0306 misfire


code p 0306 is misfire detected no 6 cylinder causes electrics
more likely a bad injector , injector wiring or dirty tip

May 05, 2017 | 1997 Ford Taurus

1 Answer

2001 ford taurus 3.0 v6 code p0306 misfire


Please go to this page for engine misfire causes.

Aug 08, 2012 | 1997 Ford Taurus

1 Answer

1999 Ford Taurus 3.0L V6 24V DOHC Duratec Engine Engine was misfiring, plugs replaced, KAM erased, Idles Slow and Rough. OBDII says misfire ocurring on cyl 4 & 5. Codes P0300, P0304 and P0305


i would check the plug wires and the coils you check the plug wires for bad spots at night start the motor up and look at the plugs if you see a spark arch out the wire and to a peace of metal then the plug wires need to be replace.

Dec 16, 2010 | 1999 Ford Taurus

1 Answer

KEEPS CODING 5 cylinder misfire. Replaced plug,plug wire,coil pack. Still coding. Any suggestions?


Clear the computer. Either use a scanner or disconnect the NEG battery cable for 10 minutes. The old defect takes 25 to 35 startups to clear itself. Then there is the possibility that #5 is a different cylinder on that motor. The engine may be misfiring because of a bad injector on #5.

Oct 05, 2010 | 2000 Ford Taurus

2 Answers

P301 Code on 2001 Ford Taurus SOHC (not FFL) with 253K miles. Replaced plugs and wires with Bosch Platinum +4 plugs and Motorcraft wire set. P301 returned almost immediately. Engine performance extremely...


Coil pack should in the front top of motor, with engine running remove one spark plug wire at a time from coil pack ( careful not to get shock ) they should all have spark, if one don't replace coil pack.

Jan 23, 2010 | Ford Taurus Cars & Trucks

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