Re: 2011 f150 ecoboost misfire p0301. This is primarily a problem with first-generation engines. The 3.5 liter twin turbo V6 engine was then integrated into a variety of other Ford and Lincoln models over the next few years. Then, you want to look for vacuum leaks and cylinder compression. Even if the repair is not covered under warranty, you may be able to negotiate a discount or other form of compensation with Ford. Here's How To Fix It, 5 Symptoms Of Bad Gas In Your Car and How to fix it, 8 Causes Of Low Engine Compression and How To Fix It, 5 Symptoms Of A Bad Engine Control Unit and Replacement Cost, P1326 Code Meaning, Causes, Symptoms (& How To Fix), 5 Symptoms Of A Bad Engine Control Module and Replacement Cost, P1131 Code Meaning, Causes, Symptoms (& How To Fix), Car Wont Accelerate But RPMs Go Up: Causes & Fixes. It gains 375-450 horsepower in the majority of models. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty spark plugs to low engine . No. Engine misfires can actually be quite difficult to diagnose even for us experts in the field. Rotate the ignition coil back and forth a few times to help spread the dielectric grease. Your previous content has been restored. According to . I do see codeB10EA from the positive temperature coefficient heater sometimes but have assumed that cant be related. Kinda forgot the power the 3.5 eco boost had when it was running rightat least no cops were nearby lol. We used Mitchell 1 to look up the information for setting a P0300. Starting at the PCM, centimetre by centimetre the loom was inspected for clues. what could be the cause of car engine running and stopping on the road? The updates aid in the support of increased power and torque. Once the carbon deposits become excessive, walnut blasting the intake ports may be necessary. UPDATED: I have had an issue since I purchased the truck 10 months ago. Spark plugs are gapped to .30 and SP-580. The injectors are installed Under valve cover and to get to them the plenum and intake manifold needs to be removed. My problem is, that it starts shaking when I accelerate to a certain speed. Ford has also issued bulletins, indicating that they are fully aware of the timing chain issues. I have a 2014 chrysler town and country van 3.6 engine number 3 cylinder misfire changed coils, spark plugs ,fuel injectors compression 130 # wires good to and from injectors good,ohlms across injectors,air filter good, intake gasket good added heat to gas tank. I have a 2012 ford focus we just put a new ,used engine in it when I got it back the ck engine light was on we replaced the o2 sensor,then came the cylinder 1 misfire,changed out spark plug and coil still has the same code ??? Started February 26, 2015, By The low side fuel line appears to be plastic and has a small, sealed device, possibly a damper, no connections or wiring for a sensor, must be a model or year variant. You can also use an EVAP smoke machine to easily find vacuum leaks, but these are often quite expensive and probably not something most people have in their garages. To protect yourself, here are the tried and true methods: Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. The 3.5 EB comes in two distinct generations, which we will discuss briefly below. Glad you found something that works. Additionally, turbocharging and direct injection assist the 3.5 V6 in remaining fuel efficient and emission-free. Here is a more detailed list of the most common cause of engine misfires: 1. I have to admit I'm pretty fed up and disappointed with the ecoboost. Still #1 misfire. Anyone know what thelow range fuel pressure sensor reading 5 volts is telling us? Thank you for explaining how "misfires" are detected by the camshaft position sensor detecting slight changes in engine speed. Started Thursday at 09:54 PM, By At the moment I can only comment on two of your points. 3: Clean MAF, ensure air cleaner is clean and not damp, 4: Turbo bypass valve is weak and can leak, fit a turbosmart replacement (cheaper and more durable than OEM), 5: Have the plugs been changed? This contributes to the prevention of carbon build-up, which we will discuss later in this article. driveceladon.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. However, Ford pioneered the use of turbochargers, direct injection, and variable valve timing. We are very familiar with this coming from the BMW world. Myself and many others might be happy you did, but we all would miss the joy and happiness you bring to this section All - this is a VERY WELL DOCUMENTED fatal flaw in the ecoboost. Additionally, Ford did an excellent job with the second-generation 3.5 EcoBoost in addressing some of the issues. by Aungsty Thu Mar 23, 2017 6:38 pm. Getting good spark. If you have a misfire trouble code on a specific cylinder, youll want to start by looking at the spark plugs and ignition coil on that cylinder. Carbon tracking is where the spark fires between the top of the plug and the base, across the ceramic shell. This after they told me that the dealer and ford engineering thought it was a bad fuel injector . At 96,000 Miles. engine may exhibit various engine misfire symptoms accompanied by diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 stored in the . Then, go backwards to cylinders 2,3,4,5,6 on the driver's side. He shows location of low side pressure sensor (and goes through other common faults). Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. With the retaining the ignition coil plug unplugged and the retaining bolt removed, you can now pull the coil straight out of the hole. If it did, you know its a problem with either the spark plugs or the ignition coil, and you will want to replace all the spark plugs and the ignition coil on that cylinder. This is a lot of Ford and Lincoln EcoBoost engines. If the misfire is specific to a cylinder, it may display a check engine light and a DTC such as P0301, P0302, P0303, P0304, P0305 or P0306. Any no improvement. To missmy06 I havent seen a positive post out of you yet and Im sure any dealership would be happy to trade in your current truck for another 06 and down and probably the finances would not change so go for it. Save my name, email, and website in this browser for the next time I comment. You earlier indicated that your reservoir tank was "lowering as usual" or similar to that wording without me going back and checking. With the ignition coil out, you can remove the spark plug using a 5/8-inch spark plug socket, extension, and ratchet. You can also open the hood of your car and watch the engine idle. Reinstall the injection pump cover, the engine cover, and the oil cap. Hi, Magnus i read your instructions, i own a vw tourage 2008, according to the trouble codes i got from dtc the engine has a misfire on all 6 cylinders, and random misfire, one thing that i wonder is that the engine sounds smoothly well tuned, the check engine light is on, I'm replacing the spark plugs they are dirty and according to the a page that i found in Google the gap should be. This makes the 3.5 EB an excellent engine for towing and fun around town without requiring full use of the engines RPM range. Ryan jones Youll have to push down on the gray tab to get the plug to connect from the coil. Symptoms of 3.5L Ecoboost misfire are usually related to heavy carbon build-up on the ignition coil. You can either get one yourself, or go to a mechanic and borrow their diagnostic tool to read the trouble codes from the ECM. First check all ground connections are clean and tight. Thx, My toyota vitz 2nz engine still misfiring even after puting new plugs wat can b the problem. Faulty plugs. Great helpfully web site. This leaves a characteristic carbon track on the insulator. Privacy Statement - The first day I had my truck, changed plugs and boots.had to it misfired like mad on the way home and knew it had to be done..got a extra 1k trade in for taking it that way and then drilled hole, also cleaned the maf sensors, ran like a champ and still does. The most common code you will see is the P0300 code, along with a code like P030X. Take care of the 3.5 EcoBoost and it will almost certainly reward you with a pleasant, reliable driving experience. Therefore, the first thing you want to do when diagnosing misfires is to check the trouble codes with an OBD2 scanner. The misfire can come or go depending on what is going on with the ECM. Here we will look at what you need to know about engine misfires. I just realized that 1999 toyota Camry is running on 3 cylinder By reading your article I'm without any doubt that you're a professional. Remove the insulated cover over the injection pump to get to spark plugs # 5, and #6. Contact Us - Tighten the plug in the clockwise direction with the 3/8 drive ratchet to just past hand tight. Last thoughtI've still yet to test it towingneed to know whether I'll still have to play the game jumping between 4th and 3rd depending on the incline. On the 3.5 EcoBoost, some symptoms of timing chain, guide, tensioner, and cam phaser failure include the following: Rattling on cold starts is one of the more common symptoms of a timing chain problem. The worst condition of exhaust and converters. Changed the coil packs, no improvement. Excess carbon build-up on the 3.5 EcoBoost intake valves and ports manifests itself in the following ways: The majority of these symptoms are caused by the primary symptom misfires. The loom runs below this bracket and in my case there was a rusty stain on the loom. P0300 - this trouble code indicates that there is a random misfire. You can do this with either a compression tester or a leak-down tester. Start the engine and listen closely for any strange sounds that might indicate a problem such as a loose spark plug or a disconnected electrical connector. Had a slight misfire so I changed Spark Plugs and Coils. As a reminder, the Ford 1.6L timing belt should be serviced every ten years or 150,000 kilometers (whichever comes first). To fix engine misfires, you need to read the trouble codes from the engine control module and continue troubleshooting from there. Leave a comment and inform us! An old trick that mechanics often use on car engines with separate ignition coils is to switch the spark plug and ignition coil to another cylinder. Car wont move after CV Joint replacement. The car engine is most sensitive to small air-fuel mixture problems at idle, so this is probably one of the first places you will notice misfires. Copyright text 2021 by driveceladon.com. The engine started fine and has been driving perfectly for over a week now. These misfires often occur under load from the engine, such as when you accelerate quickly. Paste as plain text instead, Hi my name is Victor I have a 07 Pontiac Grand Prix V6 I am getting a code low sufficiency threshold have changed wires plugs coils and it runs fine and when I put it under a load start start to run rough so what clean the injectors again it runs fine until I put under load what is the problem, I replaced both coils 8 spark plugs and wires still running bad checked my ekg valve it works motor still shakes and body as well could it be a faulty fuel injector I need help. Identifying these issues can be a little hard. Line up the bolt hole in the ignition coil assembly with the corresponding hole in the top of the engine. Nonetheless, turbo technology has advanced significantly over the last few decades. Generally, the most common F150 PCM failure symptoms include: inability to connect diagnostic scan tool, check engine light illumination, rough or even no start, low gas mileage, failed emissions test, engine stalling, difficult shifting, getting PCM-related . Ford also added port injection to the second-generation 3.5-liter V6 twin turbo engines. If you cant find any problems on the spark side, its time to look at the air-fuel mixture. Although most modern cars use an electric fuel pressure sensor, youll want to confirm the results with a manual fuel pressure gauge, because an electronic sensor can fail. I took it back home since I didnt have $3000 at the time and on a gamble went down to the auto parts store and bought the tools and spark plugs to swap the plugs out. Therefore, if you notice that your car engine idles rougher than usual, it could be a sign of a misfiring engine. Most likely not your air filter. If your vehicle is no longer under warranty and you experience timing chain issues, you may be able to work with Ford. Bad Ignition Coil. It is one of the variables over which we have no control. It is not recommended to drive your car at all with a misfiring car engine. Spark plugs were normal, except #1 as it was slightly oily/wet after cleaning with wire brush and reinstalling and restarting for about 10 minutes. Check the fuel pressure and compare it to the manufacturers specifications. Certified Automotive Diagnostic Technician. Maintain the Ford EcoBoost engine properly, and it will almost certainly reward you with a dependable, enjoyable driving experience. Try better fuel, see if it goes away. Lower the ignition coil back down into the well and push it on to the top of the new spark plug. Clear editor. If the check engine light is on, there should be a trouble code stored that needs to be checked with an OBD2 scanner. However, be very careful when doing this and have a fire extinguisher ready. Avoid over tightening the new spark plugs to prevent from stripping the aluminum threads. Its a simple and inexpensive repair. Changing transmission fluid usually takes care of torque shudder, Torque converter usually isn't bad, just needs new fluid. Spark Plugs And Ignition Coils Issues. You may or may not be able to monitor High and Low side Fuel Pressure readings, actual and desired. Long story short I took my vehicle to a ford dealership over a check engine light and very low power and was told that the turbo was the culprit and needs replacing. Reinstall the ignition coils retaining bolt by hand in the clockwise direction to prevent it from becoming cross threaded. A set of ignition coils costs between $200 and $300. Fuel Injectors Can Get Clogged. CursedBones Check light blinking, car acceleration slow. This oil eventually cakes onto the intake valves as it travels through the intake tract. Key Points. The carbon deposits can cause un-even amounts of air to enter to cylinders. Started 14 hours ago, By RyanP2023 Misfires Are More Common Than You'd Think. TuningPro.co is owned and operated by 8020 Media. Did compression test and cylinders were 150, 150, 149, 149. Most likely, you will be unaware of a gradual loss of power over a period of several years. Determine which cylinder(s) is misfiring by inspecting the fault codes. 6. Started 5 hours ago, By The most common car sensors that cause an incorrect air-fuel mixture are the MAF sensor, the MAP sensor, the oxygen sensor, and the coolant temperature sensor. If you do this, and change spark plugs every 30k miles, you will never have a misfire ever again. V8 engines have a completely different tone than a four-cylinder engine, for example. This disturbs the air-fuel mixture, which may result in the 3.5 EB misfiring. Specific information about the Ford 3.5 timing chain problems is scarce. Hi I have a 61 ford falcon 6 cyl has a miss fire under load new coil, plugs, wires points cond, dist, all cyls fire, My 206 puegoet starts up fine from cold drives 100 percent problem is when it gets hot will drive it when I switch it off and start it up get miss fire and loss of power so I have to switch it off and start it up after a few tries it's gets back to normal even though the car is hot. All of these parts are often very expensive to replace, so you want to make sure you do a proper diagnosis before replacing them. The Ford 3.5 EB strikes an excellent balance of power, torque, towing capacity, and efficiency. Ive been driving the Expedition for a month now with the new plugs, and havent received a misfire code. Turbocharged engines place a great deal of strain on the ignition system, owing to the incredibly high cylinder pressures. Fortunately, Ford issued a service bulletin in response to these issues. Magnus is the owner and main author of Mechanicbase. Earlier generations of gen 1 engines encountered issues with timing chain failure and carbon buildup. In worst case scenario, if the ignition coils are in really bad condition, the engine will not start. Yes. 4) Poor Engine Performance. The X is replaced with the cylinder number where the cylinder misfire occurs; for example P0301 is a cylinder 1 misfire. I turned around and headed home, and after a short distance, the check engine light stopped blinking, and the truck seemed to run smooth again. John, thanks for your reply. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. An engine misfire is an event that occurs when one or more of the engines cylinders fail to ignite the air/fuel mixture during the combustion cycle. I thank you for making my life so much easier I'm going forward finding my problem. Just a theory. My scan tool isFoxwell NT530 Full Systems Scanner for Ford, which is a small stand alone hand held unit with access to all vehicle modules. If it is too high or too low, you need to inspect the components of the fuel system such as the fuel pump, fuel filter, and fuel pressure regulator. jsk For the car engine to work properly, the perfect mixture of air and fuel is required, along with a clear and strong spark. To find out if your engine has low compression, you need to do a compression test and compare the results to the manufacturers specifications. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. I did the thottle position sensor reset procedure and that helped for about 2 days. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. The numbering of the cylinders on a Ford F150 starts from cylinder 1 on the front and goes backward. Need some advice here, I have a 2015 F150 3.5 Ecoboost. The Escape is a hot mess. Like you I thought spark plugs and changed them early on but sadly no improvement. Hello allhopefully I'm not regurgitating info herebut since my searches led me to different bits and pieces of my solution, I figured someone else might benefit from it all being condensed into one place.
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