Question about Ford F-150

6 Answers

FORD F150 4.6 L Engine can?t make it idle, No power, rattling, misfiring, 2-3 cylinders not firing, 2-3 coils on driver side NO firing, noisy (knocking) like diesel engine. Need to pump gas several times to crank it. Drives up to 40-45 mph with a lot of backfiring when trying to accelerate. Service Engine light on revels following codes: P0356- ?Ignition coil primary circuit condition-coil #6? Prob. Cause: 1.Ignition coil defective2- Secondary Ignition-plugs/wires/cap/rotor. 3-Poor electrical connection or circuit fault. 4-Driver circuit fault-ignition module or PCM P0152- ? HO2S21 circuit condition (heated oxygen sensor bank2 sensor1)?. Prob.Cause: 1-Oxig. Sensor defective. 2-fuel pump or pressure regulator P0171-?Fuel Trim bank 1 condition?. Prob.Cause: 1-fuel pressure or MAF sensor . 2-Oxigen sensor defective. 3-Fuel Injector problem. P0174-?ECM detected a fuel condition on bank 2?. Prob.Cause: 1-fuel pressure or MAF sensor fault.2-H02S21 Failed ( Heated Oxig.sensor-Bank2 sensor1).3-Fuel injector problem P2197-?Lack of heated oxygen- Bank 2 Sensor 1 HO2S21. Prob.Cause: 1-Failed HO2S21. 2-Open or short circuit.3- Failed fuel pump or block fuel filter. 4-MAF Sensor failure. 5-Vacuum leak. I would like for an expert to look thoroughly on Codes above and prepare for me an action plan, what to do first and what to expect at each step. Thanks

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  • 9 more comments 
  • Jorge Pereyra Dec 29, 2010

    FORD expert please take note of engine 4.6 with 110k F15o model 2004

  • Jorge Pereyra Dec 30, 2010

    I really need to receive the advise of an expert who can set me up in the less expensive path to repair this engine. Please refrain to make any comment that is not pertinent to the sequence of task to repair this engine.
    PS: To much job for a "Dealer's mechanic", they didnt take it. Their solution is to replace engine

  • Jorge Pereyra Dec 30, 2010

    This is a 2004 STX F150 that had been repo. Would any FORD expert looking at the codes set me up with a series of task to repair this engine? Please!. Refrain any other comment but the sequence of repair tasks. If you need more info look further on the codes. Please give me a TO-DO plan. Not any other comments. Please

  • Jorge Pereyra Dec 30, 2010

    FORD Expert: Please prepare for me the most common sense,less expensive, TO-DO list to repair this engine. I had purchase it from a Repo. If you have access to a more descriptive explanation and probable cause of trouble codes please analize them and set me up in the path to repair it. Thanks

  • Jorge Pereyra Dec 30, 2010

    Please set me up with a TO-DO list of repairs in the less expensive path.
    Thanks

  • Jorge Pereyra Dec 30, 2010

    Thanks!.

    I notice the probable cause on 5 codes is related to fuel pressure and a sensor at bank 2 sensor1.

    Should I change fuel filter, then MAF then OS?. How can I make engine idle?. There is a electrical failure at coil #6 and is coherent with the not firing of coils at driver side, should all this be related to the computer? If it is so, how I can have the computer flashed? If I can inexpensibly have the computer reset, I rather do that becouse I suspect that before repo somehow they mess the computer system. Please forgive my ignorance and help me out, consider me as a " know nothing" repair man who desperatly needs a plan to start working out a solution.

    Thanks again, I am looking forward to heard from you. Thanks

  • Jorge Pereyra Jan 01, 2011

    I had just make the resistance measure. between negative terminal on the battery and intake block: 1.8 Ohms, Between negative terminal and front end frame bolt: 2.7 Ohms and between negative terminal and a bolt holding the evaporator to frame: 5.9 ohms. Are this acceptable?. Let me know

  • Jorge Pereyra Jan 04, 2011

    Thanks.

    After disconnecting the MAF I notice a little improvement (respond to acceleration), can't make idle anyway.

    I disconnected the device that controls the opening of the air intake (is the ECM, isn't it?, the accelerator pedal is not active) then idles!.

    How can I make it stay idling, that's all I want for now!

    Thanks. Look forward for your help!

    JORGE




  • Jorge Pereyra Jan 04, 2011

    2 are yellow/white, orange, sky blue

  • Jorge Pereyra Jan 05, 2011

    Woulkd i be better off reassembling the intake system?

    I had not find any broken,misplaced, or wear off hose.

  • Jorge Pereyra Jan 05, 2011

    Mr Saalier,
    Would I be better off disassembling intake system and assembling back after checking each component?. Can I check voltages at each component with engine off.?

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6 Answers

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  • Ford Expert
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Hello! Please send the year of the vehicle and I'll send an action plan to solve the problem...Do you have a mulitimeter and a wee bit of experience using it? Included in the plan will be test procedures (not difficult) which require a meter.....

Guru....Saailer

Posted on Dec 31, 2010

  • 5 more comments 
  • David Burbee
    David Burbee Dec 31, 2010

    Hello! Here is a short list of non-year specific checks...Test procedures are year-specific and as soon as I know the year of your vehicle I'll send them (if necessary)...

    The cause of these multiple faults is a fuel/air mixture problem...The effect is Oxygen Sensor P codes..

    #1.. You most likely have a vacuum leak. When you have a vacuum leak the computer (PCM) reads air intake volume at the Mass Air Flow Sensor (MAF)...The O2's are reading a lean condition so the PCM compensates by adding fuel...This is called "fuel trim" (running rich and fouling plugs)...Check all vacuum lines...Check the tube that runs from the Positive Crankcase Ventilation (PCV) valve to an elbow in either the intake manifold..This elbow has a history of breaking...

    #2...The Mass Air Flow (MAF) sensor may be fouled...If you are using an after market air filter the oil tends to foul the MAF...The MAF is in between the throttle body and the air filter outlet...Pull the connector and see if there is any improvement...

    #3...Pull the spark plugs and inspect for fouling...Clean and reinstall...Don't replace...

    #4...If the ground wires from the - battery terminal to the chassis, and the engine block are corroded, rusted or broken the sensors will malfunction...Set meter to X1 ohm scale...Place one meter probe on the center of the - battery terminal...The other to bare metal chassis (fender bolt)...Record reading...Move probe from chassis to bare metal on the engine block...Record reading...Send results...

    Guru...Saailer



  • David Burbee
    David Burbee Jan 04, 2011

    Hello! I have been out of town...I'm a Ford expert...I'll talk you through a series of procedures to solve your vehicle's problem...The resistance readings are perfect...First of all the O2 sensors react to a fault and in most cases are not the cause but an effect...The O2's are reading a fuel mixture fault...Hold off on the fuel filter and lets start with the Mass Air Flow (MAF) and vacuum lines...Disconnect the connector on the MAF...It is located between the air filter box and the throttle body...See picture below...It has a six pin connector...Start the engine...Do you notice any improvement in the way the engine runs? On the under-side of the hood is a vacuum line diagram...Follow each line looking for soft, broken or disconnected vacuum lines...This looks like a vacuum problem...Let me know the results...The plan is to localize...Without spending any money...Send a comment with results..PS....Pull out the PCV valve and shake it...Does the ball rattle?




  • David Burbee
    David Burbee Jan 04, 2011

    Hello Jorge! Please tell me the wire colors that are in the plug that you disconnected...The one that you say controls the air inlet...Saailer

  • David Burbee
    David Burbee Jan 04, 2011

    Hello! The Mass Air Flow (MAF) sensor is also the Intake Air Temperature (IAT) sensor...It's looking like it may be the problem...Disconnect the inlet tube clamp...Loosen the other side of the MAF and remove it...Be careful it's delicate...Take a trip to Radio Shack and buy a product called Deoxit...About $15...There are two small spray cans...Use the cleaner and spray (not much) into both ends of the connector pins...Also spray inside the MAF sensor...Reinstall and test the engine...Plug in the other connector you removed (I do not know what this one is until you tell me the wire colors)...Send a comment...saailer

  • David Burbee
    David Burbee Jan 04, 2011

    Hello! The device that you disconnected is the Throttle Positioning Sensor (TPS)...After you clean and reinstall the MAF, we will perform a test procedure...Do you have a multimeter? If so set the meter to read 5 volts DC...Plug the TPS connector back in...Using 3 safety pins push the point into the rear of the in-place connector into the following wire colors...Note; there are two Yellow/White wires...Look at the connector to identify pin numbers...The Yellow/White wire we want is pin # 1...Push one safety pin into that wire...Another into Pin # 3 a Pink/Orange...Push the third safety pin into Pin # 4 a Gray/White wire...The colors are hard to read because they age...See a picture of the TPS below...

    Connect the + meter probe to the Yellow/White (pin 1)...The - probe to the Pink/Orange (pin 3)...Turn the key to ON...do not start...Record reading...It must be less than 1 volt (.85)...Move the + probe to Pin 4...Gray/White wire...Record reading...Must also read less than 1 volt (.85)...Send results...Saailer




  • David Burbee
    David Burbee Jan 05, 2011

    Hello! Yes...reassemble..Plug everything back in...Did you receive the procedure to test the TPS? Do you have a volt meter? go ahead and test the TPS...When you said the engine would idle with the TPS unplugged, that was a giant step forward...The TPS is more than likely the bad component...That's why testing it is important...If the test gives you any trouble just contact me...I am here!...saailer

  • David Burbee
    David Burbee Jan 05, 2011

    Hello Jorge!...Put everything back together...Test the TPS with the key in the ON position...Don't start the engine...Follow the procedure that I sent you...saailer

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Hi and welcome to FixYa!

As a first course of action I strongly suggest that you replace the MAF (mass air flow) sensor first. Once replaced there will surely be a big change on engine performance.

Please do check the vacuum hoses too for any loose or worn hose can cause the car to misfire. Please replace worn hoses.

You may try to add an additional body ground to make the current flow smoothly.

Hope this helps and thank you for using FixYa! Have a good one!

Posted on Dec 30, 2010

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  • Ford Master
  • 17,970 Answers

Several thnigs to check there; review all informastion disponible to do it and solve this...

P0356
- Ignition Coil F Primary/Secondary Circuit Malfunction
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solution:
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM
------------------------------------------------------------------------------------------------------------------------------------------------

P0152 - O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
The heated oxygen sensor 1 is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust

Possible Causes:
- Harness or connectors (The heated oxygen sensor 1 heater circuit is open or shorted.)
- Front Heater oxygen sensor heater (Bank 2) may be faulty

Possible Solution:
Replacing the O2 Sensor 1 usually takes care of the problem
------------------------------------------------------------------------------------------------------------------------------------------------

P0174 - Fuel Injection System Too Lean Bank 2
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The ECM calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.

In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption

Possible Causes:
- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection

Possible Solution:
Dirty air filter of faulty air flow sensor are common causes of the problem.
------------------------------------------------------------------------------------------------------------------------------------------------

P2197 - DODGE - Sys Too Rich at Hier Load Bank1
Means that the O2 sensors on each bank are seeing WAY too much oxygen in the exhaust gas. In normal operation the signal from the O2 sensors should swing back and forth between rich and lean. Your sensors are locked on lean.

Those codes are the same as P0174 (and P0171). Sounds like you have a vacuum leak somewhere. Most common place is the PCV elbow where it connects to the throttle body adapter.
------------------------------------------------------------------------------------------------------------------------------------------------


Hope this helps; keep in touch.

Posted on Dec 30, 2010

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  • Ford Master
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From looking at the code read out iam surprissed it still runs to be honest,i have a funny feeling here you need a new ECU ?iam wondering if its developed a fault like being full of water ,now i do not know what year this vehicle started using a chipped key but i would try a scrapyard for a accident damaged vehicle and take the lot ,chip in the key ,transponder and transponder control box if fitted and the ECU ,if its a early one then the transponder reader will require the dash to be taken out to get at it

Posted on Dec 30, 2010

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I'm going to be up front and honest with you in this. You have way too many codes which tells me you either have a faulty ECM or one major problem. It almost sounds like someone put sugar in your gas tank. The best course of action for you would be to take the vehicle to the dealer because they have the computers to simulate and isolate all those. The only other time I have ever seen this was when someone submerged their vehicle in a lake.

Posted on Dec 30, 2010

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Hi

What year is the vehicle? this is a gas powered vehicle? not diesel yes?

please clarify, sounds like more than one fault but some faults can create others.

Get back to me,
Regards
Dan

Posted on Dec 29, 2010

  • 1 more comment 
  • Dan Doherty
    Dan Doherty Dec 30, 2010

    Hi

    I may be able to help but I need the model year of the vehicle, let me know if you are still having problems.

    Regards

    Dan

  • Dan Doherty
    Dan Doherty Dec 30, 2010

    Hi thank you got the info,

  • jeffrey_cost
    jeffrey_cost Dec 23, 2012

    do you think i need to replace the o2 sensor or tps on my moms 2000 f-150 that has the 4.6 liter motor in it when you start it it will reve up like someone is pushing on the gas pedal and letting go no matter if it is in park drive or reverse and it will not stay running and now it has gotten to where it ill not start please email me at jeffrey_costa_13@hotmail.com

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Number 3 and 4 are not firing from coil on 2002 subaru outback 2.5


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=========

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My 2005 ford escape v6 is only firing on cylinder 1 and 6


Your an 2005 Ford Escape 3.0L, you don`t have a distributor. Each cylinder has it`s own coil and is controlled by the PCM. You need to scan the PCM to determine which cylinder is loosing power ( misfire). P0301 cylinder #1, P0302 Cylinder #2 and so on. The coils are common problems with this vehicle, but pay close attention that the drivers in the PCM are not at fault. #1 cylinder is on passenger side near the firewall passenger compartment. firing order as follows, Bank #1 1-2-3 front of engine to rear. nearest the passenger compartment. I`m an ASE Master with 30 years experience. Be careful, don`t waste money on unneeded parts! I own my own company. 805-369-4589 Jerry Bryant. Advise is free, but like reading a diagnostic manual does not mean the problem is solved. Correct diagnoses and system inspection and testing is what needs to be done so you don`t waste money!

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What do I need done if codes p0171 p0174 p0301 p0305 p0316 is it major problems


OK, We'll cover the Diagnostic Test Codes (DTCs), starting with the standard definition set by SAE J2012 (Revised December 2007)
DTC P0171 "System Too Lean Bank 1"
DTC P0174 "System Too Lean Bank 2"
DTC P0301 "Cylinder 1 Misfire Detected"
DTC P0305 "Cylinder 5 Misfire Detected"
DTC P0316 "Engine Misfire Detected on Startup (First 1000 Revolutions)"

The "system lean" codes are pretty much telling you that there is way too much oxygen in the exhaust. There is too much oxygen on BOTH sides of the engine, and that is why you are getting codes for bank 1 and for bank 2. Bank 1 is the side where #1 cykinder is located and Bank 2 is the opposite side.

The misfire codes are pretty self-explanatory. #1 and # 5 cylinders are misfiring. The P0316 DTC is telling you that the misfire monitor is detecting a misfire as soon as the engine starts. This tells you that it is a very severe misfire and that the engine does not have to warm up and the car does not have to be driven to detect the misfire.

A misfire can be caused by many things it can be vacuum leaks, bad spark plugs, bad ignition cables, faulty ignition coils, fouled or malfunctioning injectors or injector circuits, blown head gasket, cracked cylinder head, burnt valves, etc.. etc..

However, look at the codes you have. Then look at the firing order for your engine. 2002 Mercury Sable is only equipped with a 3.0L 2V 6-cylinder engine.
The firing order is 1-4-2-5-3-6

Now if you take the firing order and split it in half, stack the two halves on top of each other, it looks like this:
1-4-2
5-3-6

When you look at the firing order this way, you can see that cylinders 1 an 5, 4 and 3, and 2 and 6, are "PAIRED" cylinders. They are exacly opposite in the firing order. Now, the cylinder only fires every second revolution of the crankshaft. With paired cylinders, one of the cylinders in the pair will fire on the first revolution and the other cylinder will fire on the second revolution.

Looking back at your codes, please note that the cylinders that are setting the misfire codes are paired cylinders.

Now the coil pack for your ignition is actually made up of three coils. Each coil fires a set of paired cylinders. If you look at the top of the coil, it will usually be marked with the cylinder numbers that each coil tower is supposed to connect to. The coil will look just like the firing order split and stacked as above.

With all of this said, I would say that it is VERY LIKELY that your misfire codes are being caused by a defective ignition coil.

The lean codes are a little different.

These are USUALLY caused by vacuum leaks which allow too much air into the engine that is not getting measured by the Mass Airflow (MAF) sensor and causes the engine to be getting too much air and not enough fuel (running lean).

I would take a good look at all of the vacuum hoses and lines. Ford is notorious for getting holes in the rubber parts that connect the PCV tubes.

If you do not find any obvious reasons for a vacuum leak, then you may want to fix the misfire codes, reset the computer memory, and drive the vehicle to see if the lean codes come back again. The misfires COULD be the cause of the lean codes. In a perfect world, this is not supposed to happen because the misfire monitors setting codes will not allow the oxygen sensor monitors to run and set lean codes. However, I HAVE seen cylinder misfires that have caused lean codes.

I hope this helps you to figure it out. Good luck!

Feb 03, 2012 | 2002 Mercury Sable

1 Answer

I'm having some problems on my #4 cylinder on my 5.4 triton engine coil pack in my 2003 Ford Expedition. How do I identify which coil is #4?


Firing Orders; (5.4L)
************* Firewall ************
(Passenger Side) 4 * 8 (Drivers Side)
(Passenger Side) 3 * 7 (Drivers Side)
(Passenger Side) 2 * 6 (Drivers Side)
(Passenger Side) 1 * 5 (Drivers Side)
************ Radiator *************

Firing order
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8


Sep 20, 2011 | 2003 Ford E150

2 Answers

02' Ford escape 6 cylinder: I have coils miss-firing, When it idles, it occasionally rattles and idles funny. But now the engine light is on and the codes say: 4 and 5 cylinder miss-fire. You can't run...


Although you say you have coils misfiring, it sounds like you are not sure.

Trade the coils on cylinder 4 and 5 with coils on 2 and 3. Erase the codes and try to run the engine again. If the misfire code comes up on 2 and 3 this time, the coils are definitely the problem. If the code comes up for 4 and 5 again, there is something else besides the coils that is causing the misfire on those two cylinders.

Things to check: sticking or faulty EGR valve, vacuum leaks on intake manifold gasket near or between the runners for cylinders 4 and 5, clogged fuel injectors, a bad ground for the powertrain control module (PCM or computer), wiring problems to the coils.

Mar 07, 2011 | 2002 Ford Escape

1 Answer

Changed all 8 plugs on a 1998 expecition, then misfires started under load, none supposedly prior. changed all coils, reinspected plugs for damage,crackes etc-changed some again- no codes during first week...


The first thing I would check is, are any of the plug wires crossed. Your firing order should be 1 3 7 2 6 5 4 8, the cylinders are number front to back passenger side 1 2 3 4, drivers side 5 6 7 8.

Jul 15, 2010 | Ford Expedition Cars & Trucks

5 Answers

Where's the number one cylinder on a ford f-150 truck?


Select your Engine for Ford Pick-Ups/Expedition/Navigator 1997-2000...

cf75b46.jpg

Ford 4.2L Engine Firing order: 1-4-2-5-3-6 Distributorless ignition system

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Ford 4.6L Engine Firing order: 1-3-7-2-6-5-4-8 Distributorless ignition system

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Ford 5.4L Engine Firing order: 1-3-7-2-6-5-4-8 Distributorless ignition system (one coil on each cylinder)

5d2d834.jpg

Ford 5.8L Engine Firing order: 1-3-7-2-6-5-4-8 Distributor rotation: Counterclockwise

7af8e86.jpg

Ford 6.8L Engine Firing order: 1-6-5-10-2-7-3-8-4-9 Distributorless ignition system (one coil on each cylinder)

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7.3L Diesel engine injection order: 1-2-7-3-4-5-6-8

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Ford 7.5L Engine Firing order: 1-5-4-2-6-3-7-8 Distributor rotation: Counterclockwise


I hope help you (remember rated this help) good luck.

Sep 14, 2009 | 2000 Ford F150 Flareside SuperCab

1 Answer

Misfire on number 2 cyl


Cylinders are numbered from front to rear (grille to firewall) passenger side: 1-2-3, driver's side: 4-5-6. Firing order is 1-4-2-5-3-6
Did you check by pulling #2 out while the engine is in idle to see no weakness from the engine? BTW your coil pack cost $80.

Sep 13, 2009 | 1996 Nissan Maxima

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