Question about 2004 Ford F150

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Want start I,ve changed the plugs and coil packs it start with a miss codes was jumping around with misfire on different cylinder's

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  • 8 Answers

Did you check or set the spark plug gap before installation, if so then try disconnecting the negative battery terminal and then reconnecting after about three minutes or so, see if that helps.

Posted on May 04, 2014

Testimonial: "I found a bad new coil I still have 2 codes one is p2196 and the other is p0174 runs rough after it warms to running temperature"

  • minuteman one May 04, 2014

    for code p0174 I would recommend cleaning your maf sensor, but be very careful not to damage it. They now sell a spray cleaner at some parts stores. Also check or change the air filter too. For p2196, I'm not exactly sure but you may want to check your fuel line connections to the fuel injectors, or maybe you have a bad injector.

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Posted on Jan 02, 2017

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chuck943
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SOURCE: engine code p0307 cylinder #7 misfire

It could be carbon deposits on valve seats keeping valves from totally closing. You can try getting you a can of motorcraft PM3 top end engine cleaner and get engine up to operating temp then remove one of the small vacuum lines from the intake and draw the contents of the can slowly into the engine.After you have drawn in the contents shut engine off and let it soak for about 45 minutes then crank it back up and let it run until it clears. Now it will smoke like a forrest fire while you are doing this so don't be alarmed,just tell the neighbors you are spraying for mosqitos.This may cure the problem. If not you may be looking at a valve job.
This can be verified with a compression test if this is what is causing it.

Posted on Feb 05, 2009

81vasquez
  • 34 Answers

SOURCE: 5.4 liter triton misfiring in cylinder 1 and 5.

check timing might be timing belt to

Posted on Jun 06, 2009

  • 1 Answer

SOURCE: cylinder 5 misfire

you need to replace all 8 coil packs.

Posted on Aug 03, 2009

  • 82 Answers

SOURCE: ford e 150 4.2 Misfire cylinder 6

do a compression test, you may have a bend valve , I'm assuming its not getting overheating so I don't think its the head gasket..a compression test can give you the answer..hope this was very helpful...thanks

Posted on Aug 08, 2009

ministock48
  • 258 Answers

SOURCE: Ignition coil pack on Ranger 1999 misfire on #3

replace coil

Posted on Oct 23, 2009

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Related Questions:

1 Answer

After changing the coil pack and spark plug, why is it still skipping?


Timing could have jumped. Could be a bad head gasket also. even possible to be a small hole in piston check the cylinder for compression. Check the fuel injector to that cylinder if you have bad air to gas mixture it will throw a code of misfire change fuel filter check fuel injector to see if clogged. most likely it is the fuel injector .

Feb 26, 2016 | 2002 Chevrolet Chevrolet TrailBlazer LS

3 Answers

I have a miss fire on cylinder 2and 3 I have changed coil pack ,spark plugs and wires still have the missing in it did not make a difference what else can I do


Is the computer code coming up as a misfire or are you actually feeling the misfire when you drive? Make sure all the grounds for the coil packs and engine are solid and clean. Many times there is rust corrosion under the pack or the retaining screws etc, Low compression can feel like a misfire as well. If all items are OK do a compression check to verify its not an issue.

Mar 03, 2015 | 1998 Toyota Sienna

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Engine missing


Then you went to a shop that doesn't have the
skills necessary to resolve much,cylinder misfires
in your case

You never need a MIL Lamp, to check for codes,cylinder
misfires & other data

Sep 01, 2013 | 2003 Ford Explorer

1 Answer

04 kia optima dohc v6 2.7 liter has a misfire but not throwing any check engine light codes I've changed the plugs and wires still same thing when the car is running I started to pull plug wires one...


It could be normal. The coils fire a negative and a positive charge at the same time. So cylinder one gets a positive and the opposite cylinder gets a negative at the same time. A positive jumps from the electrode to the base and a negative jumps the opposite direction. Both still fire the fuel in the cylinder.
The miss is probably not bad enough to set a code, yet. The loss of power from a cylinder has to be more than 50% to set a code. The computer "sees" a drop in RPM to set a code.

Jun 22, 2013 | Cars & Trucks

2 Answers

Multiple misfire


Hi Jason:
A Random/Multiple Cylinder Misfire Detected unfortunately doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

A code Random/Multiple Cylinder Misfire Detected may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer

Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Feb 26, 2012 | 2001 Pontiac Grand Am SE

2 Answers

My 93 olds cutlass ciera keeps misfiring and stalling, i have change the spark plugs, fuel filter, o2 sensor, maf sensor, and still stalls and misfires any ideas?


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

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Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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This will help.

Thanks.

Feb 14, 2012 | 1993 Oldsmobile Cutlass Ciera

2 Answers

P300 code have changed plugs wires cap rotor map sensor


A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

A code P0300 may mean that one or more of the following has happened:
  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective computer

About the possible solutions, try...
* If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
* If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

Keep us updated.

Jul 23, 2011 | 2003 Chevrolet Blazer

2 Answers

Engine cranks but wont start has an obd p 300 &p304 help me


P0300 Random/Multiple Cylinder Misfire Detected, the 304 is for cylinder number 4 any of these could be wrong If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors. Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open

Jun 21, 2011 | 1996 Eagle Vision

1 Answer

I have a 2002 TrailBlazer with the straight 6,diognostic check said #3 cylinder was dead or misfiring, also map sensor showed up. #3 cylinder was misfiring, so to test the coil pack I swapped #3 coil pack...


did you replace only one spark plug? that can cause issues because of differences in resistances between cylinders. also, did the map code stay off after replacing
?

Feb 28, 2010 | 2002 Chevrolet TrailBlazer

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