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Need some advice here, I have a 2015 F150 3.5 Ecoboost. More often than not, your engines computer will be able to detect bad spark plugs in your F150. However, the ignition components on the 3.5 twin turbo EcoBoost engine are likely to wear out much more quickly. . The engine hesitation misfire symptoms are very mild at the moment and only occur while the engine is warming from a cold start, say 1 to 3 miles after start at about 50mph and on light cruising throttles. However, Ford pioneered the use of turbochargers, direct injection, and variable valve timing. . Additionally, turbocharging and direct injection assist the 3.5 V6 in remaining fuel efficient and emission-free. In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. Carbon deposits can result in cylinders receiving an uneven amount of air. The official Ford website can be found at http://www.ford.co.uk/, Fiesta 2013 1.0 Ecoboost misfire and or hesitation under light throttle. Ford addressed this issue with the second-generation 3.5 EcoBoost by utilizing both direct and port injection. Then, you want to look for vacuum leaks and cylinder compression. 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. Any no improvement. Now invested in FORScan and cable suggested above so will dig a bit further over the next few days, any suggestions on which variables to monitor? Youll also want to inspect the spark plugs and ignition coils. The socket should have a rubber insert or a strong magnet to securely hold the plug in place. This is primarily a problem with first-generation engines. Ford, on the other hand, took it a step further by offering a 647hp variant of the legendary Ford GT. 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? Otherwise, its primarily labor associated with gaining access to the intake ports. Some F-150 owners have complained of a mysterious misfire on these engines. Manage Preferences - I have looked at the video and that's exactly as I would expect to find it. If I need to take the car back as is I will invest in the FORScan system suggested above. Verified plugs and wires by swapping #1 with #3. Getting good spark. Manage Preferences - With the retaining the ignition coil plug unplugged and the retaining bolt removed, you can now pull the coil straight out of the hole. 27 Jan 2018 00:24 - 28 Jan 2018 10:44 #17294. 4. Misfire Codes: A bad timing chain tensioner or guide also causes the check engine light to illuminate. Then, clear the codes and drive for a while to see if the problem has moved to another cylinder. The check engine light is one of the most common symptoms of bad spark plugs. This makes the 3.5 EB an excellent engine for towing and fun around town without requiring full use of the engines RPM range. Was told it might be the fuel sending unit . Yes. Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. 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 Latman Replacing the timing chain and other critical components is not a simple or inexpensive task. First check all ground connections are clean and tight. Always starts and idles perfectly, even passed its MOT. Joined: Thu Mar 23, 2017 6:09 pm. When it reaches normal speed it quit shaking. Glenn hastie I have had it in several times, with no results. Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). This messes the air-fuel mixture causing the Ecoboost to misfire on your Ford F150. However, be very careful when doing this and have a fire extinguisher ready. After a bit of discussion we realised that my scan tool and the garage scan tool both indicated that the low range fuel pressure sensor was showing 5 volts which sounds more like open circuit than an an accurate reading. If this gasket leaks, it will draw air into the combustion chamber, causing the air-fuel mixture to become too lean, and this can cause misfires. 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 upstream O2 sensor, HP fuel pump and fuel rail pressure sensor have been changed. 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+. Paul 56 If you're located in Florida especially in Hollywood, i wanna meet you so i can get my car fixed for good. OK ForScan up an running and after much testing I can see the fuel rail pressure sensor raw voltage signal intermittently dropping to zero volts for a few mili-seconds then recovering. However right now this is what I've got since I wanted to spend $20k not $35k. Remove the engine oil filler cap, and remove the plastic engine cover by lifting up and pulling forward. Low fuel pressure can be caused by a faulty fuel pressure regulator, a faulty fuel pump, or a clogged fuel filter. Had a slight misfire so I changed Spark Plugs and Coils. data shows primarily cylinder five misfiring. Tighten the plug in the clockwise direction with the 3/8 drive ratchet to just past hand tight. I bet that your actual problem is the spark plugs. good article but didnt cover a p0300 with misfires on all cylinders on 1 bank of a v8. For complete cylinder combustion to occur, the engine needs three important things, and that is the correct air/fuel mixture, compression, and spark. I used a small screwdriver to press down on it as I slid the plug off. If an issue does occur, it is prudent to replace the entire timing chain assembly. Ford 3.5 TT V6 Carbon Build-Up Symptoms. Naturally, that engine receives some upgrades over the standard 3.5 EcoBoost to accommodate the increased power. Thanks for the great information passed on. Apply some dielectric grease to the opening in the rubber dust boot at the bottom of the ignition coil. Its a simple task that almost anyone can complete in less than an hour or two in their driveway. If I get on the highway at 70 , It does not take long to get the check engine light. Thank you for your help. 4) Poor Engine Performance. 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. 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. 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. Ford did an excellent job of addressing these issues once they became aware of them. Cookie Policy - READ MORE: 6 Symptoms of a Bad Ignition Coil (& Replacement Cost). Magnus is the owner and main author of Mechanicbase. MAF and air filter look to be clean and dry. Dave thanks for your reply and suggestions. In rare cases, it can also happen because of low engine compression. Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. 2013 Ford Escape SEL AWD 2.0 Ecoboost Mileage 110,000 Hello! Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. Started Wednesday at 06:15 PM, By Under hard acceleration (i.e., boost) or at highway speeds, an intermittent stumble and misfire reportedly can occur during high humidity or damp conditions. In my case cyl 2 4 6 8 on a dakota 4.7. If you know a little about cars, youve probably noticed a difference in sounds from different engines. 1. The fuel idea has crossed my mind, the car is usually filled with regular supermarket fuel, however, on this occasion I had just filled up with fuel from one of the major UK fuel and oil brands, still regular unleaded E10. Issue Severity: SEVERE - Stop driving immediately. 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. As mentioned above, the ECM controls the engine timing, and air/fuel ratio. Pasted as rich text. Your link has been automatically embedded. 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. The car has now been back an forward to a Ford main dealer over the last two weeks and they are stumped. The engine from the second generation is used in the following models: With that background information out of the way, lets get to the point. Certain DI engines can even run their entire lives without any valve cleaning. 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions. If you notice that it vibrates more than usual, it could be a sign that the engine is misfiring. Condensation in the Intercooler. UPDATED: I have had an issue since I purchased the truck 10 months ago. If not maintained, it could mean sending the car to the junkyard sooner . Remove the spark plug and ignition coil from that cylinder and visually inspect them and replace them if they look bad or dirty. Additionally, the use of twin turbos provides an abundance of tuning potential for those looking to get the most out of their engines. I would start with checking for any leaks around the intake and connect a fuel pressure gauge if possible! Codes P0089, P0087 and P2626 were showing but no engine check light. Shudder fix additive can also help as stated above. Started 4 hours ago, By 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 car engine sounds unusual, its possible that your engine is misfiring on every cycle. 165k miles #1 cyl misfire code. Its critical to establish this for a reason. In many ways, its the best of both worlds, as DI has numerous advantages over PI. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty spark plugs to low engine . This is not to say that the first generation engine is a bad engine by any means. You may also notice other performance issues, like slower acceleration than usual or a stalling engine while accelerating. This is not a critical situation that requires immediate attention. Ford EcoBoost engines deliver exceptional performance, torque, fuel economy, and towing capacity. Low coolant levels can lead to the engine overheating, misfiring, or catching on fire. Upload or insert images from URL. Ford 1.5 EcoBoost Engine Problems: The 4 Most Common Problems, ignition system such as spark plugs and ignition coils, 10 Best Digital Calipers In 2022 Expert Review, 10 S9 Charging Cable Of 2022 Reviews & Comparison, 10 Projectors For Laptops Of 2022 Reviews & Comparison, 10 Brother Mfc L5900dw Of 2022 Reviews & Comparison, Top 10 Porter Athletic Equipment Recommended By Editor, 10 Harry Potter Proclamation In 2022 Expert Review. You can do this with either a compression tester or a leak-down tester. Vacuum leaks are a common cause of an incorrect air-fuel mixture and are fairly easy to check, so you want to start there. Rather than that, they are a few of the most frequently encountered issues when something goes wrong. Engine misfires can actually be quite difficult to diagnose even for us experts in the field.