Most likely not your air filter. Privacy Statement - The check engine light is one of the most common symptoms of bad spark plugs. Started 4 hours ago, By I used a small screwdriver to press down on it as I slid the plug off. The Latman The X is replaced with the cylinder number where the cylinder misfire occurs; for example P0301 is a cylinder 1 misfire. i have a 2013 kia forte, the check engine light came on and, the car does not have an engine problem. If any of these things fail, it will not ignite the combustion chamber properly and a misfire will occur. When one or more cylinders do not fire properly, the engine will become unbalanced, and this can cause severe vibrations inside your car when accelerating or idling. There is a red locking tab on the plug: . Ford EcoBoost Has a Dangerous Engine Defect, Owners Say 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. When the engine control module receives the data, it will determine if the problem is serious or not. This is what causes the misfire. A set of ignition coils costs between $200 and $300. Of course, the reliability of each 3.5 V6 engine is partially determined by luck of the draw. Cookie Policy - Truck: 2011 F-150 XLT Super Crew. If you have an account, sign in now to post with your account. Certain DI engines can even run their entire lives without any valve cleaning. Matilda Magnetic build 2019 6.5' bed crew cab fx4 heavy tow.. Do Not Sell or Share My Personal Information. Any ideas out there? 5. I have done plugs and coils as well, even new throttle body. Its a simple and inexpensive repair. The problem is variable and intermittent but looks to be the same using both the original and a spare fuel rail pressure sensor. Declan19971 Drop In Engine Power: . Started 8 hours ago, By An engine with a bad ECM will often run rough and misfire. The second most common cause of a misfiring engine is bad or failing spark plugs. The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. 5 Symptoms of a Bad Oil Control Valve (VVT Solenoid) - Oards Automotive Hub Otherwise, its worth noting that turbo engines can be a little more difficult to maintain. In order to get to the #5 and #6 spark plug, youll have to unplug the harness connector on the injection pump. The 3.5 EcoBoost engine from the first generation utilizes only direct injection (DI), which means fuel is sprayed directly into the cylinders. If youre unlucky, it could be due to poor compression, which can be very expensive to repair. At this point I decided to just change the spark plugs. Ford 3.5 EcoBoost Engine Problems: 3 Most Common Issues The updates aid in the support of increased power and torque. Its my first scan tool which has been useful but is limited by my knowledge and the small screen. Misfire Help P0300 P0301 P0302 P0303 P0304 P0305 P0306 The function of the spark plug is to ignite the air-fuel mixture in the combustion chamber, and if there is something wrong with the spark plug, it will not ignite, and a misfire will occur. By understanding the causes, symptoms, and how to fix it, you can keep your car running smoothly and avoid expensive repair costs. A high-quality shop vac and walnut media shells are required for this job. The car has run perfectly all summer but in the last couple of weeks the fault is back. The garage needs some thinking time so they haven't physically worked on it in the last few days, I need to chase for updates. Rev going down and vibrating when gear is engaged. Apply some dielectric grease to the opening in the rubber dust boot at the bottom of the ignition coil. Did you fit standard OEM? Fortunately, this is not a time-sensitive task that requires immediate attention, and you may not even want to do it at all. Ford had a PCM reflash for these cars after the first few model years for the computer as to not trip a code on cold start misfires. I thought it was misfiring or driveline related. I4 2.3L EcoBoost Engine / Mods: Bolt-ons, Exhaust, . Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. . This makes the 3.5 EB an excellent engine for towing and fun around town without requiring full use of the engines RPM range. 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. Thanks for the great information passed on. The numbering of the cylinders on a Ford F150 starts from cylinder 1 on the front and goes backward. To be honest, this is mostly here because weve run out of other topics to discuss regarding the 3.5 EcoBoost. Low fuel pressure can be caused by a faulty fuel pressure regulator, a faulty fuel pump, or a clogged fuel filter. Its critical to establish this for a reason. Likes: 15. Read the manufacturer's instructions and set up the pump. The Ford 3.5L EcoBoost engine can power several models, including the Ford F-150 and the Lincoln Navigator. The car is my daily driver and I'm not necessarily looking for an . With the ignition coil out, you can remove the spark plug using a 5/8-inch spark plug socket, extension, and ratchet. The wideband front O2 sensor should show a Current of 0 most of the time under constant or no Throttle openings. Started February 26, 2015, By In many ways, its the best of both worlds, as DI has numerous advantages over PI. 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. Common Ford 3.5L EcoBoost Engine Problems - Soulmate Twin Flame As a result, carbon accumulates on the intake valves over time. Were always looking for new content to share with other Ford Maverick truck enthusiasts. I need some direction with this one. Best regards, Hi Mr. Selln Manage Preferences - 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. Identifying these issues can be a little hard. Its time consuming and the component costs can add up. (Heres How To Fix it), 7 Best Spark Plugs Review & Buyers Guide, Car Losing Power When Accelerating? OEM COILS - Keep in mind no check engine light just a slight miss under light loads and typically above 60MPH (1200-1500 RPM) Didn't solve the problem, re did the process . One of the conditions that is required to set the code is a fuel . Aside from an oil extractor pump, you need a container to pour the excess oil, a clean rag, and a pair of gloves. [FIXED] 2011 f-150 3.5l GTDI misfire under load was created by ptebo1. Ford F150: Bad Spark Plugs Symptoms and Diagnosis 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? 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. Ford told me that plugs 2 and 6 are cracked and coil in number 2 needs replaced. jsk If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. 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. If I do, Ill update this page. If your engine is misfiring, it's important to determine the cause as soon as possible. I used a flat blade screwdriver behind the coil to help wiggle it a little to get it out. Is it Safe to Drive With a Misfiring Engine? - YourMechanic I haven't done anything with the turbo bypass valve so far assuming that at these very light throttle loads the turbo can't be contributing much if anything. Repair this yourself or, if you prefer, have it done by a repair shop. Please register or login to enable Dark Mode. https://www.bmdiag.co.uk/forscan-diagnostic-cable-for-ford-vgate-vlinker-fs, Touch up repairs - clues/recommendations/tips, Front end creaking/ knocking when breaking, Windows not working mk7 1.0 2016 red edition, My pcv valve is leaking oil onto the radiator fan, Ford Focus Titanium 2015 - Battery Issues. Worst pressure condition in the cylinder. With the hood popped, standing in front of the vehicle, looking at the engine the cylinder numbering starts at the front left (passenger . Anyone know what thelow range fuel pressure sensor reading 5 volts is telling us? Rough acceleration is a typical sign that your engine is misfiring. The 74-page lawsuit was filed by five plaintiffs, Robert Reed, Stacy Coppock, Craig Morford, Kelli Morford, and David . This includes misfires, power loss, and a rough idle, among other things. What are your thoughts on the 3.5 EcoBoost? General discussion on 2009 - 2014 Ford F150 truck. Any no improvement. The Ford 3.5 EB strikes an excellent balance of power, torque, towing capacity, and efficiency. Update, still not fixed, Ford Main dealer have discussed with Ford UKand both are unable to offer a diagnosis with any confidence. Checked all the ground connections I could find, they all looked good. Low Engine Compression. However, this problem still pops up from time to time in the Ford 3.5 Ecoboost engine upgrades. Regards Therefore, if you have checked the basics, it may be worth taking your car to a qualified mechanic for expert advice. Zain. While the 3.5 EcoBoost is an excellent engine in general, no engine is perfect, and this is true here. Terms of Service - If you already checked the fuel supply and the spark and couldnt find any problems with it, there is a risk of low compression in your engine. runs rough, no white smoke, no water in oil. Ford EcoBoost Problems Lead To Class Action Lawsuit You can also open the hood of your car and watch the engine idle. Damaged injecting tools. Ford F150: Bad ECM Symptoms + Diagnosis | Drivetrain Resource To the OP glad your running top notch, and here I thought this was going to be positive threadthat was short livedlol. Paul 56 At 96,000 Miles. Ford 1.6 EcoBoost Engine Problems: The 4 Most Common Problems I've been on other websites trying to find more info on what to do on my VW caddy 1988 model which I'm experiencing misfiring. The last number represents the cylinder that is having the misfire. 2013 Ford Escape - Turbo failure - Car Talk Community Paste as plain text instead, Several of the most frequently encountered issues with the Ford 3.5 EcoBoost engine include the following: As mentioned previously, the top two issues primarily affect the first-generation 3.5 EcoBoost engine. Posts: 3. Misfire after cold start | Page 3 | 2015+ S550 Mustang Forum (GT Ford addressed this issue with the second generation 2.7 EcoBoost by utilizing port injection. . However, because carbon build-up occurs over time, it is frequently difficult to detect. Codes P0089, P0087 and P2626 were showing but no engine check light. 7. No PCM codes so I'm using the car to see if anything changes or codes appear. My caddy 1.6 carb had still misfired after changing coil, boggy cords, plugs, distributor cap, rotor and some fuel lines. Open your hood and allow the engine to cool down. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates. Jan 23, 2021. ouguru said: 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. Additionally, while youre in there, consider replacing a few other small items. If youre experiencing misfires, heres an easy way to determine whether the problem is with the spark plug or coil. This is not to say that the first generation engine is a bad engine by any means. Then, you want to look for vacuum leaks and cylinder compression. Ford F-150 3.5L Ecoboost Repeat Engine Misfires: Diagnostic - YouTube A blown head gasket can cause low compression. The garage thinks its running lean at light throttles as the fuel trim values are going high, hence the misfire or hesitation. The loom runs below this bracket and in my case there was a rusty stain on the loom. When I first purchased the fuel mileage was horrible but my smiles per mile was up, now the best Ive seen from the lie-o-meter was 19mpg on the highway and heck I still smiled.WTH..lol. What else can I do??? Leakage and excessive fuel burn. To protect yourself, here are the tried and true methods: Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. Still #1 misfire. 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions. 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. New plugs areNGK Spark Plug SILZNAR8C7H (93593) same NGK part number as the originals. Hi guys. 2015 ECO 3.5 Misfire-Tried everything, I think. - F150 Forum Ford introduced the 3.5-liter EcoBoost engine in the Lincoln MKS, MKT, Ford Flex, and Taurus SHO in 2010. Did compression test and cylinders were 150, 150, 149, 149. Display as a link instead, . As a reminder, the Ford 1.6L timing belt should be serviced every ten years or 150,000 kilometers (whichever comes first). Has been a great explanation about the theme. In rare cases, it can also happen because of low engine compression. If either the distributor or the ignition coil creates a weak spark, it can cause misfires. Here is a more detailed list of the most common cause of engine misfires: The most common cause of an engine misfire is a bad or failing ignition coil. Here is a more detailed list of how to diagnose and fix engine misfires: Modern car engines have a system that monitors all the sensors in the car engine, and if there is something wrong with a sensor, it will store it as a trouble code in the engine control module. Your previous content has been restored. Thank you for your help. 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. Each of the wires on the HP fuel rail sensor were back probed in turn and with the multi meter set to ohms the loom damage area was probed with the other lead. The upstream O2 sensor, HP fuel pump and fuel rail pressure sensor have been changed. RyanP2023 Clear editor. cheaper than replacing the valve? RELATED: 5 Signs of a Bad Intake Manifold Gasket (& Replacement Cost). when overtaking. When I got home I scanned the truck for trouble codes, and discovered these codes: P0300 (Random/Multiple Cylinder Misfire Detected). danielsan8787 Rotate the ignition coil back and forth a few times to help spread the dielectric grease. 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.