In addition to removing the injectors other items including air ducts, air box, filter MAF, battery, PCM and battery box were removed to help further inspect the wiring loom. I had an F150 and an Escape both do exactly these same things. If you suspect that your engine is misfiring, it is important to take care of the problem as soon as possible. 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 is a repeat of a problem I had about 2 years ago which was never diagnosed but cleared itself which is always a bit unsatisfactory Initially the symptoms were very noticeable and made the car difficult to drive, then progressively improved during the 10 mile journey home and are now just annoying. Did compression test and cylinders were 150, 150, 149, 149. If the misfire persists after installing the new cylinder, youve identified the source of the problem. 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 ??? A class-action lawsuit just filed says that the 1.5-liter, 1.6-liter, and 2.0-liter EcoBoost engines leak coolant into cylinders. The Ford 3.5 twin turbo engine, we believe, receives above-average reliability ratings. Early EcoBoost engines were also known to catch on fire, leading to a 2012 recall and "stop driving" order from Ford. A set of ignition coils costs between $200 and $300. 3.5L EcoBoost - Cold Start Ticking/Tapping Or Rattle Type Noise - Built On Or Before 31-Oct-2019 20-2315 14 September 2020 This bulletin supersedes 20-2191. The car wont rev up over 3000revs per min.could iit b a bad ignition coil. I wouldnt have thought a UK dealer would make the same mistake but Im almost sure they did. 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 numbering of the cylinders on a Ford F150 starts from cylinder 1 on the front and goes backward. This contributes to the prevention of carbon build-up, which we will discuss later in this article. With the hood popped, standing in front of the vehicle, looking at the engine the cylinder numbering starts at the front left (passenger . It can also be caused by fuel-related issues such as a faulty fuel injector or a bad fuel pump. This after they told me that the dealer and ford engineering thought it was a bad fuel injector . Need some advice here, I have a 2015 F150 3.5 Ecoboost. RELATED: 8 Causes of Low Compression in a Car Engine (& How to Fix). 00:00 / 00:00. This is not to say that the first generation engine is a bad engine by any means. Avoid over tightening the new spark plugs to prevent from stripping the aluminum threads. 5 Best 2.0L EcoBoost Performance Upgrade Guide, technical service bulletin that can be seen here, 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions, 2010-Present Ford S-Max, Galaxy, and Mondeo, Engine overheating (often triggering a P0217 engine code), Whistling, whining, or chirping noise coming from the engine, Engine builds no boost under acceleration. For the F150 I asked a Ford dealer in Minnesota to diagnose it. I did the thottle position sensor reset procedure and that helped for about 2 days. You can also open the hood of your car and watch the engine idle. The misfire code will indicate that something is not right with the engine. Started Thursday at 09:49 AM, By Faulty coils and broken electric wires. This happens fairly quickly, say 5 seconds per event and maybe 5 events during a warm up cycle. Here are the 6 failures and what to look for. The dielectric grease will help seal out any moisture, dust or debris and ensure a reliable electrical connection. Car wont move after CV Joint replacement. Started February 26, 2015, By Remove the plug on the ignition coil of the cylinder youre working on. Ford enhanced the component before redesigning it for the second generation 3.5L twin turbo V6. Or are there two circuits in the fuel rail pressure sensor? VVT has the ability to generate more power or save more fuel depending on the phase of the camshafts. The carbon deposits can cause un-even amounts of air to enter to cylinders. The truck is setting p0302 and p0305 under heavy acceleration. 5. This is a repeat of a problem I had about 2 years ago which was never diagnosed but cleared itself which is always a bit unsatisfactory Initially the symptoms were very noticeable and made the car difficult to drive, then progressively improved during the 10 mile journey home and are now just annoying. 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. Not too shabby in terms of longevity. Please register or login to enable Dark Mode. Engine misfires can actually be quite difficult to diagnose even for us experts in the field. Insulation and wiring loom made good, bracket modified to keep clear, injectors refitted and all other parts. Up Next: Ford 1.5 EcoBoost Engine Problems: The 4 Most Common Problems. If either the distributor or the ignition coil creates a weak spark, it can cause misfires. Pretty common to have a misfire on these motors on cold start. The plugs were changed at 40k as I was aware of a slight hesitation back then, no improvement, the car is at just under 50k now. This detects failures over a period of 200 revolutions. CursedBones Fortunately, checking the fuel pressure in your car is fairly easy with a manual fuel pressure gauge, and worth doing if you suspect low fuel pressure. Although the engine appears the same on my car there is no sensor on the low-pressure side fitted. If I should get a misfire code again, than Ill replace the ignition coil for whatever cylinder the code is for. Ford addressed this issue with the second generation 2.7 EcoBoost by utilizing port injection. Bad Ignition Coil. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. With the ignition coil out, you can remove the spark plug using a 5/8-inch spark plug socket, extension, and ratchet. Replace oil cap. I wasn't very succinct with my summarybut yes, I agree fully with Bravo and Whoand yes, when I have it to do again, I'll never own another boosted motor. If your engine misfires, it will feel like the engine is shaking or vibrating, and it may make a knocking noise. If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. This will give you important information. A DIY solution to a water leak can have disastrous results. if everything is working correctly. The check engine light is one of the most common symptoms of bad spark plugs. The socket should have a rubber insert or a strong magnet to securely hold the plug in place. Misfires can cause all sorts of problems, from reduced fuel efficiency to complete engine failure. Again, the 3.5 EcoBoost is an extremely reliable engine in general. Carbon deposits can result in cylinders receiving an uneven amount of air. A misfiring engine can be a serious problem that should be fixed as soon as possible. The Escape is a hot mess. So, as its intermittent and clears after 5 or 6 miles I'm continuing to drive it hoping some new clues will appear, its done about 2k miles since the last trip to the garage. Additionally, issues with the 3.5 EcoBoost timing chain guides, tensioner, and cam phasers occur. You earlier indicated that your reservoir tank was "lowering as usual" or similar to that wording without me going back and checking. 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. Zain here I used a small screwdriver to press down on it as I slid the plug off. Spark plugs should be replaced on a schedule for all car models, and not replacing them on time can cause fouled spark plugs, which can cause misfires. You can either get one yourself, or go to a mechanic and borrow their diagnostic tool to read the trouble codes from the ECM. Rough acceleration is a typical sign that your engine is misfiring. Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). At 96,000 Miles. Ive been driving the Expedition for a month now with the new plugs, and havent received a misfire code. 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions. 7. Its best to diagnose and repair the issue as soon as possible. plasticpat If the problem comes from the drivetrain and not the engine, the CV joints or driveshafts are common causes. . What Happens When You Put Too Much Oil in Your Car? P0300 - this trouble code indicates that there is a random misfire. Its time consuming and the component costs can add up. Fortunately, a set of six Ford 3.5 spark plugs typically costs between $40 and $100, depending on the source. Small bore plastic vacuum lines around the back of the engine have been removed and inspected, all look fine. This is why you HAVE TO DRILL the 1/16" intercooler weep hole. We have both independently looked for a low pressure fuel sensor but can't find one, other fords have low pressure sensors near the inlet to the HP fuel pump but this car only has a fuel pressure damper. 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 . 6 Symptoms of a Bad Ignition Coil (& Replacement Cost), 5 Signs of a Bad Intake Manifold Gasket (& Replacement Cost), Low Fuel Pressure Symptoms, Causes (& How To Fix it), 8 Symptoms of a Bad Fuel Injector (& Replacement Cost), 8 Causes of Low Compression in a Car Engine (& How to Fix), How to find a Vacuum Leak & How to Fix It (8 Easy Steps), Car Jerking When Accelerating? In todays article, we will discuss the meaning of engine misfires and what possible issues can cause them. The 3.5 EcoBoost engine from the first generation is found in the following Ford and Lincoln models: Ford began offering the second-generation EcoBoost engine in select models in 2017. These cars are prone to misfires if the variable valve timing is malfunctioning. While the 3.5 EcoBoost is an excellent engine in general, no engine is perfect, and this is true here. Open your hood and allow the engine to cool down. Code says multiple misfire's . Some 2011-2012 F-150 models equipped with a 3.5L EcoBoost V6 engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humidity or damp conditions. This is what causes the misfire. 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. I would start with checking for any leaks around the intake and connect a fuel pressure gauge if possible! Misfires can cause serious damage to your engines internal parts and the catalytic converter, which can be very costly to repair. Yes my car misfire I check the plugs is good bt is still misfire wht can be the problem I already do vavle grainig also it dus not working. Like you I thought spark plugs and changed them early on but sadly no improvement. In some cases, it can also lead to dangerous situations where the car stalls and becomes difficult to steer due to the loss of power steering. Another possible problem that can cause misfire fault codes on only one side is low compression. Thanks for the great information passed on. Codes P0089, P0087 and P2626 were showing but no engine check light. Terms of Service - If you do this, and change spark plugs every 30k miles, you will never have a misfire ever again. Your previous content has been restored. On top of this, folks have to worry about fuel in the oil, and the cold start rattle (failed cam phasers that then stretch the timing chain). After some research, there are problems with the CAC and many of the trucks left the factory with Mis-Gapped plugs. I have not noticed any slack in the joint. Its not recommended to drive with engine misfires. Often, spark plugs are to blame, as their lifespan is significantly shorter than that of ignition coils. Kinda forgot the power the 3.5 eco boost had when it was running rightat least no cops were nearby lol. Started 4 hours ago, By Speechless. You can post now and register later. Birdzini The most common signs of bad ignition coils in Ford F-150 are engine hesitation when accelerating or loss of power, rough idle, misfires, excessive fuel consumption, check engine light illuminates, and sometimes hard starting. Even if you think it will be very expensive to take the car to a mechanic, it can actually sometimes be cheaper to get a proper diagnosis rather than replacing fully functional parts. As mentioned above, the ECM controls the engine timing, and air/fuel ratio. Spark plugs for stock 3.5 EcoBoost engines will likely need to be replaced every 40,000 to 60,000 miles. For the car engine to work properly, the perfect mixture of air and fuel is required, along with a clear and strong spark. I used a flat blade screwdriver behind the coil to help wiggle it a little to get it out. Dirty filters/Fuel filter clogging. When an engine misfires, it can cause reduced fuel economy, engine damage, and a loss of power. If you cant find any problems on the spark side, its time to look at the air-fuel mixture. . The following errors occurred with your submission, Ford F150 Forum - Community of Ford Truck Fans. We are very familiar with this coming from the BMW world. Continuing to drive with a misfiring engine can cause serious damage to your cars engine. Yes. Engine overheating (often triggering a P0217 engine code) Engine misfiring (especially on startup) Lack of acceleration. and you'll notice engine misfires, startle, and low millage. Get at least 20% off selected Ford parts on eBay View parts on eBay now! All Rights Reserved. I did not find any evidence of carbon tracking on the plugs I removed. So far Im very pleased with my eco as its made me grin when ever I squeeze the smile pedal and if Im not careful my tires or me wont be when replacing is needed. If the timing chain completely fails, additional damage to the 3.5 EcoBoost engines is possible. Vacuum leaks are a common cause of an incorrect air-fuel mixture and are fairly easy to check, so you want to start there. Here are some of the symptoms of a bad VCT solenoid: 1. Additionally, the 3.5 EcoBoost may generate the P0016 fault code, which will illuminate the check engine light. There is a Technical Service Bulletin (TSB 14-0180) for the 2011-2013 Ford F-150 that suggests that you check the spark plugs for carbon tracks, and replace the plugs and boots if carbon tracks are found. The 3.5 EB comes in two distinct generations, which we will discuss briefly below. Compare the results with the manufacturers specifications, and if the compression is low on a cylinder, you need to inspect the engine parts such as the timing belt, piston rings, valves, or pistons. Finally, when the timing chain stretches, it can throw off the ignition timing, resulting in drivability problems. . I changed my plugs and gapped them to the .028 and replaced the boots about a month ago. This is what causes the misfire. Nonetheless, turbo technology has advanced significantly over the last few decades. Good morning. srpocd25 But how do you tell if your engine is misfiring, and what could be causing it? The dip is so fast the computed pressure in kPa doesn't mirror the raw voltage, but both their trends look noisy. To fix engine misfires, you need to read the trouble codes from the engine control module and continue troubleshooting from there. The next thing you want to check is the fuel pressure. If you get a vehicle in that is not generating enough boost, don't automatically assume it is the . Carbon deposits accumulate over time and obstruct airflow into the cylinders. Verified plugs and wires by swapping #1 with #3. As a result, the cylinders of the 2.7 EcoBoost may experience inconsistent air delivery due to restricted airflow. they then suggested that I replace all plugs and boots and get an induction flush. On Christmas morning 2019, I began pulling away hard from a traffic light, when suddenly the 3.5L Ecoboost in my 2016 Ford Expedition stumbled a couple of times. Vehicle does not drive like it used to. If the fuel injector injects the wrong amount of fuel, it will cause the engine to run rich or lean, which can lead to engine misfires. @RichBrew has been through this already with the same symptoms as @Cmw458 and I. Don't take this lightly for too long and/or pass it off as carbon build up. My guide has information on the top 9 most common F150 PCM problems and their symptoms. <>Avoid over tightening the bolt to prevent from cracking the plastic ignition coil housing. If you cant find the issue elsewhere, its definitely worth taking a look at your fuel injectors. There is a red locking tab on the plug: Im not sure whats going on but whenever I try to drive it Ill put it in drive and it will start to go and when you give it gas it will accelerate for a second then rev high like it shifted into neutral then shift and it will repeat that same cycle until the car switches into failsafe mode.. any advice on where to start? A design defect allows coolant to leak into the cylinders of the 1.5L, 16L, and 2.0L EcoBoost engine. Slide the electrical connector straight back into the socket until it clicks securely into place. In rare cases, it can also happen because of low engine compression. Additionally, turbocharging and direct injection assist the 3.5 V6 in remaining fuel efficient and emission-free. Always starts and idles perfectly, even passed its MOT. Repair this yourself or, if you prefer, have it done by a repair shop. There arent many issues that frequently occur with these engines. Leakage and excessive fuel burn. I have a different engine to your one but for comparison my Low side pressure is normally around 400-450 Kpa. 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. P0303 definition: Cylinder 3 misfire detected. I do see codeB10EA from the positive temperature coefficient heater sometimes but have assumed that cant be related. Maintain the Ford EcoBoost engine properly, and it will almost certainly reward you with a dependable, enjoyable driving experience. Puzzled. A random misfire means is that a misfire is detected . So, there you have it all the computers and over a 1k at the main dealer couldn't fix it, but patience, a good eye and some heat shrink and tape and it's fixed for free. My Toyota corolla 2009 cylinder 2 & 3 is misfiring. Removed all wires one at time, #2,3,4 all made engine want to stall when removed. Push a new spark plug into the spark plug socket. Later when I handed it over to the main dealer they changed the plugs again but no improvement. Change the oil on time, use high-quality oils, and address issues as they arise. The most common causes of engine misfires are bad ignition coils or failed spark plugs. RyanP2023 All of these parts are often very expensive to replace, so you want to make sure you do a proper diagnosis before replacing them. Issue Severity: SEVERE - Stop driving immediately. (6) Motorcraft SP-580 (CYFS-12-YT4) spark plugs. The most common cause of an engine misfire is a bad or failing ignition coil. At the moment I can only comment on two of your points. We both feel that the the low range fuel pressure sensor reading a constant 5 volts is worth investigating, but as we can actually find a low pressure sensor (under the bonnet) we are none the wiser. I had a hard time describing what it was, but now this is the clearest description of . This is a lot of Ford and Lincoln EcoBoost engines. Tom Harbid. What Are The Causes Of An Engine Misfire? I will definetly come back for more updates on how to solve car problems. i have a 2013 kia forte, the check engine light came on and, the car does not have an engine problem. 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 revealed a short circuit to earth for one of the HP fuel rail sensor wires. As for these Ford 3.5 EcoBoost, problems result from the engine using a direct injection fuel system and being twin turbo. In many ways, its the best of both worlds, as DI has numerous advantages over PI. Save my name, email, and website in this browser for the next time I comment. If you're located in Florida especially in Hollywood, i wanna meet you so i can get my car fixed for good. The injectors are installed Under valve cover and to get to them the plenum and intake manifold needs to be removed. So far the dealership has replaced a coil and all spark plugs, misfire no longer severe, but still present. Great helpfully web site. The carbon build-up causes uneven combustion, and it messes up the air-fuel mixture. Getting good spark. There is a gasket located between the cylinder head and the intake manifold called the intake manifold gasket.