Question about 1998 Ford F150 Regular Cab

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1997 ford f150 cyliner 7 misfire

1997 ford f150 extended cab, v8
Cylinder 7 misfire
changed plugs, wires, coil pack, fuel injector
check engine light still on
Cylinder 7 still misfiring

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  • 10 more comments 
  • Anonymous Mar 12, 2014

    cylinders are misfiring, engine shakes,

  • Anonymous Mar 13, 2014

    got a 98 ford f150 with a triton 5.4 v8 got to replace can I get the removal instructions please

  • Anonymous Mar 13, 2014

    misfire on cylinder 1 and 3 on a 2003 ford edge

  • Anonymous Mar 14, 2014

    Misfire for my 1997 ford f150 triton v8

  • Anonymous Mar 14, 2014

    Have a 1997 ford f150 with a misfire what would cause it

  • Anonymous Mar 14, 2014

    How do I fix a misfire in my ford f150 triton v8

  • Anonymous Mar 16, 2014

    door handle wont open door

  • Anonymous Mar 16, 2014

    1997 rear passenger door handle wont open door on extended cab

  • Anonymous Mar 17, 2014

    I have a 2003 ford fusion misfiring on cylinder 3. I have done a compression test and everything is OK. I have changed the coil pack and the ignition leads, and it still misfires?

  • Anonymous Mar 24, 2014

    #2and#7 misfire

  • Anonymous Mar 28, 2014

    How do you disconnect the fuel rail from the injectors to change the spark plugs on my 2000 ford f150 ?

  • Anonymous Mar 28, 2014

    How do you disconnect the fuel rail from the injectors to change the spark plugs on my 2000 ford f150 ?



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Same problem here, ive replaced distributor cap, rotor, plugs, wires, injectors, timing chain&gears. gonna try the ecm this weekend. will let you know

Posted on May 15, 2012

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After replacing the coil, plug and wire. The injector is working properly so I would say that you have a burnt exhaust valve. Get a cylinder leak down test or compression test to confirm this at a reputable mechanic.

Posted on Mar 04, 2013

  • James
    James Mar 05, 2014

    i have 180lbs for cylinder 7 it 02 6.0 litter


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Sme problem had to have it put on computer and codes reset

Posted on Feb 05, 2009

  • James
    James Mar 05, 2014

    if its fix the code will reset aotmadicly


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Engine light comes on code 308

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2003 Ford Ranger 4x4 extended cab- diagnostics checked and got these codes- P0171, P0174, P0300, P0316. Can you tell me what they mean?

P0171------ system too lean bank#1
Po174------ system too lean bank#2
For these 2 codes, try cleaning the maf sensor (mass air flow), that is mounted in the big black hose that goes from the air filter housing to the throttle plate, if it is dirty, that will cause those 02 sensors to send a signal to the computor to lean the air fuel mixture. If cleaning it doesn't work, the sensors will probably need changing.
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On those 2 codes, you have to do some testing to find out why there is a misfire.
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dirty/malfunctioning injectors
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May 11, 2010 | 2003 Ford Ranger Regular Cab

1 Answer

2002 Ford Ranger check engine light indicating misfire

Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure

you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder

need to know that type Engine

The reason why the service light come on because it is a hard code
not a soft code.

Let me know

Sep 20, 2009 | 2002 Ford Ranger Regular Cab

1 Answer

I have # 4 cylinder misfire code on my 99 f150. what is the easiest way of going about replacing the plug and coil at this hard to get at spot? Or could a bad fuel injector be the problem??

If you have a miss fire it's probably the wires, plugs and coil pack and is it a 4.6 v8 or a 4.2 v6. Its rare that the injectors on a Ford ever go bad. They have the best injectors in the car industry.
Tune ups are easy on both v6 and v8's.

Apr 18, 2009 | 1999 Ford F150 Regular Cab

2 Answers

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.

Feb 05, 2009 | 1998 Ford F150 Regular Cab

2 Answers

1996 f150 5.0L misfire code

P0307 Code - Cylinder #7 Misfire Technical Description Cylinder #7 Misfire Detected
What does that mean? A P0307 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #7.
copyscape.gif SymptomsSymptoms may include:
  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present
Causes A code P0307 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • 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

Jan 14, 2009 | 1996 Ford F150 Regular Cab

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