I have looked at the video and that's exactly as I would expect to find it. 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). If you get a 3.5L EcoBoost in your shop with misfire code(s) P0300-0306, pull the plugs and coil boots and look for . I'd get rid of this truck if I could but the timing just isn't right. Engine overheating (often triggering a P0217 engine code) Engine misfiring (especially on startup) Lack of acceleration. Maintain the Ford EcoBoost engine properly, and it will almost certainly reward you with a dependable, enjoyable driving experience. SMax auto is slow to shift down to 1st gear. A DIY solution to a water leak can have disastrous results. Low fuel pressure causes less fuel to enter the engines combustion chambers, resulting in a lean air-fuel mixture that can cause misfires on all cylinders. In any case, the issue at hand is one of timing chain stretching. With the hood popped, standing in front of the vehicle, looking at the engine the cylinder numbering starts at the front left (passenger . If you "tune" this engine expect to replace spark plugs every 10,000 miles. Regards I need some direction with this one. Matilda Magnetic build 2019 6.5' bed crew cab fx4 heavy tow.. Do Not Sell or Share My Personal Information. Kinda forgot the power the 3.5 eco boost had when it was running rightat least no cops were nearby lol. Check battery terminals are properly clamped and that the earth lead between the engine and chassis is good. He shows location of low side pressure sensor (and goes through other common faults). Had a slight misfire so I changed Spark Plugs and Coils. Here are some of the symptoms of a bad VCT solenoid: 1. Jan 23, 2021. ouguru said: 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. Some vehicles have a separate ignition coil on every spark plug, while some cars have one coil pack with an ignition wire to each spark plug. The Escape is a hot mess. This includes misfires, power loss, and a rough idle, among other things. i have hyundai accent 2012 model ,manual gear.my car RPM fluctuates even after i changed my coils ( 3 coils are good and one coil current was leaking so i changed only that coil),plug ,air filter etc.kindly suggest what is the remedy for this problem. Terms of Service - This will give you important information. Car wont move after CV Joint replacement. The main symptoms of an engine misfire include: Here is a more detailed list of the most common signs of engine misfires: When an engine misfire occurs, you may feel a strong or light jerk coming from the engine. However, the ignition components on the 3.5 twin turbo EcoBoost engine are likely to wear out much more quickly. F150 3.5L Ecoboost misfiring | Ford Forums Could it be a cv joint problem? This can lead to a variety of engine performance issues and can even lead to serious engine damage if left untreated. Ford F150 Forum - Community of Ford Truck Fans. A design defect allows coolant to leak into the cylinders of the 1.5L, 16L, and 2.0L EcoBoost engine. Best regards, Parts cannon loaded and ready -- Customers paying -- Fire at will !! Truck: 2011 F-150 XLT Super Crew. good article but didnt cover a p0300 with misfires on all cylinders on 1 bank of a v8. If you cant find any problems on the spark side, its time to look at the air-fuel mixture. In fact, nuzzle 2 & 3 does not bring up any sign it is OK when removed from the plug head to the nuzzle. If the problem comes from the drivetrain and not the engine, the CV joints or driveshafts are common causes. This has been done since 2011 to get these 3.5 ecoboosts to work better. Symptoms And Diagnosing A Failed Or Clogged Fuel Injector - MotorTrend At the moment I can only comment on two of your points. Type B detects a condition that is progressing over time. 2: What fuel are you using? 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 . Engine misfires can actually be quite difficult to diagnose even for us experts in the field. P0445 Code Meaning, Causes, Symptoms (& How to Fix it), 7 Reasons Your Engine Is Running Rich and How To Fix It, Car's Engine Burning Oil? This is not a critical situation that requires immediate attention. P0303 definition: Cylinder 3 misfire detected. If not maintained, it could mean sending the car to the junkyard sooner . I've pulled the injectors and sent them for cleaning and testing, will report back results. 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. 4 Most Common Ford 3.5 EcoBoost Engine Problems - Tuning Pro 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. My thinking is at low absolute loads the target fuel pressure is relatively low so the PCM is looking at the low range sensor, however this is at a constant 5 volts (no pressure conversion on my scan tool) which sounds like top scale, so the PCM thinks it needs to shorten the injector pulse width. Update, still not fixed, Ford Main dealer have discussed with Ford UKand both are unable to offer a diagnosis with any confidence. Additionally, the use of twin turbos provides an abundance of tuning potential for those looking to get the most out of their engines. (Heres How To Fix it), 7 Best Spark Plugs Review & Buyers Guide, Car Losing Power When Accelerating? 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. Damaged injecting tools. Spin in the spark plug a few turns by hand in the clockwise direction to prevent it from becoming cross threaded. Well discuss some of the most common issues with the Ford 3.5 EcoBoost V6 in this article, as well as its overall reliability. Thx, My toyota vitz 2nz engine still misfiring even after puting new plugs wat can b the problem. All of these parts are often very expensive to replace, so you want to make sure you do a proper diagnosis before replacing them. Removed all wires one at time, #2,3,4 all made engine want to stall when removed. Identifying these issues can be a little hard. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. I have had it in several times, with no results. Manage Preferences - Again, the 3.5 EcoBoost is an extremely reliable engine in general. Always starts and idles perfectly, even passed its MOT. Also make sure that the correct viscosity of oil was put in as the wrong "weight" of oil can make the VVT malfunction. Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. Unexpected misfires, check engine light illuminations, rough idleall of these symptoms could indicate that your EcoBoost's timing belt needs to be replaced. Unfortunately, low compression problems are often caused by worn parts inside the engine, which can be very expensive to fix, so youll want to inspect the other possible causes first. Of course, the reliability of each 3.5 V6 engine is partially determined by luck of the draw. Advertising - These are plastic components, so be careful that you dont break them. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? 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. As a result, the cylinders of the 2.7 EcoBoost may experience inconsistent air delivery due to restricted airflow. The dip is so fast the computed pressure in kPa doesn't mirror the raw voltage, but both their trends look noisy. Determine which cylinder(s) is misfiring by inspecting the fault codes. . Carbon build-up is primarily an issue with first-generation engines. If your VVT solenoid is experiencing issue due to a faulty oil control valve, you may notice a reduction in engine performance, as the VVT system may not be able to optimize the engine for peak power generation. Clues so far is that it doesn't like colder temperatures e.g. As for these Ford 3.5 EcoBoost, problems result from the engine using a direct injection fuel system and being twin turbo. Timing chain replacement is likely to cost in the thousands of dollars range. When I got home I scanned the truck for trouble codes, and discovered these codes: P0300 (Random/Multiple Cylinder Misfire Detected). Misfire Codes: A bad timing chain tensioner or guide also causes the check engine light to illuminate. It accuses Ford of selling cars with cracked heads, seals not sealing, and catastrophic engine failures. 2. Ford, on the other hand, took it a step further by offering a 647hp variant of the legendary Ford GT. I used a small screwdriver to press down on it as I slid the plug off. I did not find any evidence of carbon tracking on the plugs I removed. My Toyota corolla 2009 cylinder 2 & 3 is misfiring. Upload or insert images from URL. If the misfire persists after installing the new cylinder, youve identified the source of the problem. <>Avoid over tightening the bolt to prevent from cracking the plastic ignition coil housing. Rather than that, they are a few of the most frequently encountered issues when something goes wrong. Ford EcoBoost Has a Dangerous Engine Defect, Owners Say Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. Then, go backwards to cylinders 2,3,4,5,6 on the driver's side. Ford addressed this issue with the second-generation 3.5 EcoBoost by utilizing both direct and port injection. Good morning. Fortunately, this is not a time-sensitive task that requires immediate attention, and you may not even want to do it at all. This is what causes the misfire. With closer inspection it was clear that there was contact between the loom and the square edge of the bracket. Some believe it is due to insufficient maintenance and oil changes, or to the use of 20w oils, which are too thin for the engine. If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. It is one of the variables over which we have no control. 165k miles #1 cyl misfire code. Carbon deposits can result in cylinders receiving an uneven amount of air. 2.7 EcoBoost stumble on highway acceleration - F150 Forum This is primarily a problem with first-generation engines. Started 2 hours ago, By 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. So I would start there and then continue troubleshooting from whatever code you get. 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 . Often, it is simply normal wear and tear, but early problems are possible. If the check engine light is on, there should be a trouble code stored that needs to be checked with an OBD2 scanner. Received 13 Likes on 13 Posts. Ford did an excellent job of addressing these issues once they became aware of them. TuningPro.co is owned and operated by 8020 Media. Remove the plug on the ignition coil of the cylinder you're working on. 5/8-inch spark plug socket for 3/8-inch ratchet. Cylinder 4 misfires. | Page 2 | Ford Mustang Ecoboost Forum 3. Monitoring live data, fuel trims and control status shows the system in closed loop control, then when the hesitation misfire occurs the short term trim goes very high, 20+. However, it is a much simpler job than changing the spark plugs. For example, if you see a trouble code like P0300 or P030X, it means that the ECM is detecting a misfire on a specific cylinder, and you may want to start checking the spark plug or ignition coil on that cylinder. If your engine is misfiring, it's important to determine the cause as soon as possible. Magnus is the owner and main author of Mechanicbase. Rotate the ignition coil back and forth a few times to help spread the dielectric grease. These are the most common symptoms of 2.0L EcoBoost coolant intrusion, but not all of them. Youll have to push down on the gray tab to get the plug to connect from the coil.