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This leaves a characteristic carbon track on the insulator. Started Thursday at 09:54 PM, By So I would start there and then continue troubleshooting from whatever code you get. Thank you for explaining how "misfires" are detected by the camshaft position sensor detecting slight changes in engine speed. Although mostly reliable, a Ford 2.7 EcoBoost engine has problems including carbon build-up, oil pan leaks, and spark plug and ignition coil issues. 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. Changed the coil packs, no improvement. If either the distributor or the ignition coil creates a weak spark, it can cause misfires. He shows location of low side pressure sensor (and goes through other common faults). If not, change them, 6: If all that fails then it could be a clogged injector or a coil is going down, FORScan: https://forscan.org/download.html, New style 'vLinker FS' lead for use with the latest version of FORScan: https://www.bmdiag.co.uk/forscan-diagnostic-cable-for-ford-vgate-vlinker-fs. 1. If you are installing brand new plugs, tighten them until you feel the new crush washer collapse. In fact, nuzzle 2 & 3 does not bring up any sign it is OK when removed from the plug head to the nuzzle. Modern cars have good monitoring systems for all the different car sensors on the engine. Well also look at how to determine if your engine is misfiring and answer some common questions about misfires. What are your thoughts on the 3.5 EcoBoost? You can expect a cost of $200 to $500 to fix a misfiring engine in most cases. 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. Aug 11, 2020. CursedBones Here are the 6 failures and what to look for. 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. On Friday they proposed and fitted a new in tank fuel pump but still in improvement. 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. but I don't feel or hear any misses . Finally, when the timing chain stretches, it can throw off the ignition timing, resulting in drivability problems. Open your hood and allow the engine to cool down. As a result, the cylinders of the 2.7 EcoBoost may experience inconsistent air delivery due to restricted airflow. I wouldnt have thought a UK dealer would make the same mistake but Im almost sure they did. Before delving into 3.5 EcoBoost problems, its necessary to establish some context. A design defect allows coolant to leak into the cylinders of the 1.5L, 16L, and 2.0L EcoBoost engine. You may also notice problems such as the engine stalling at idle or an uneven idle that jumps up and down. If your car's check engine lights come on and stay on, more than likely the camshaft sensor is bad. 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. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? You may also notice other performance issues, like slower acceleration than usual or a stalling engine while accelerating. Ford 2.7 EcoBoost Spark Plug & Ignition Coil Symptoms. 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. If you "tune" this engine expect to replace spark plugs every 10,000 miles. Yes it sounds like lean mixture caused by either low fuel pressure or vacuum/boost leak. 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. Additionally, turbocharging and direct injection assist the 3.5 V6 in remaining fuel efficient and emission-free. [FIXED] 2011 f-150 3.5l GTDI misfire under load was created by ptebo1. In order to get to the #5 and #6 spark plug, youll have to unplug the harness connector on the injection pump. This happens fairly quickly, say 5 seconds per event and maybe 5 events during a warm up cycle. If you see a blinking or flashing check engine light, thats another strong sign that your engine is misfiring. Ecoboost 1.0 - Difference Between 100Hp And 125Hp Version ? Tajsingh Read the manufacturer's instructions and set up the pump. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates. Started February 5, 2013, By Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. 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. This identifies the root cause as the Charge Air Cooler/CAC when it . What do I do? This messes the air-fuel mixture causing the Ecoboost to misfire on your Ford F150. The 3.5 EB comes in two distinct generations, which we will discuss briefly below. I hope you enjoyed this article and now have the expertise to diagnose engine problems like misfires and fix the problem with your car yourself to save some money. Its time consuming and the component costs can add up. Spark plugs for stock 3.5 EcoBoost engines will likely need to be replaced every 40,000 to 60,000 miles. 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. If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing. The Ford 3.5 EB strikes an excellent balance of power, torque, towing capacity, and efficiency. In some cases, the escaping boost pressure can be heard. We used Mitchell 1 to look up the information for setting a P0300. https://www.youtube.com/watch?v=0J83RZi3eCE, Hi thanks for your reply. Faulty coils and broken electric wires. pretty much the same story with the Escape (Kuga 2 US version with 2.0 TT eco boost) except I went straight to the plugs without paying a dealer $100 to diagnose it. I have had it in several times, with no results. Paul 56 The 3.5 EcoBoost engine from the first generation utilizes only direct injection (DI), which means fuel is sprayed directly into the cylinders. When the engine control module receives the data, it will determine if the problem is serious or not. However, be very careful when doing this and have a fire extinguisher ready. Failure of any of these sensors can cause an incorrect air-fuel mixture to enter the engine, which can cause the engine to misfire. The car has run perfectly all summer but in the last couple of weeks the fault is back. The problem is variable and intermittent but looks to be the same using both the original and a spare fuel rail pressure sensor. Discuss all things maintenance here. Some mechanics prefer to use anti-seize lubricant grease on the threads, but most spark plug manufacturers do not recommend using anti-seize since it can easily lead to over tightening. You cannot paste images directly. It does sound like it is running lean, it's strange that there are not codes all the time. This contributes to the prevention of carbon build-up, which we will discuss later in this article. Otherwise, its worth noting that turbo engines can be a little more difficult to maintain. It is, however, inherent in owning a twin turbo, direct injected engine. Checked all the ground connections I could find, they all looked good. Terms of Service - Under hard acceleration (i.e., boost) or at highway speeds, an intermittent stumble and misfire reportedly can occur during high humidity or damp conditions. The engine misfires, resulting in rough idling, stuttering, and fault codes. Reason for update: update the vehicle model years affected and production fix date Model: Ford 2017-2020 F-150 Engine: 3.5L EcoBoost 2018-2020 Expedition Lincoln 2018-2020 Navigator Summary It is one of the variables over which we have no control. RyanP2023 Remove the ignition coil from that cylinder and replace it with one from a non-misfiring cylinder. Shudder fix additive can also help as stated above. i have a 2013 kia forte, the check engine light came on and, the car does not have an engine problem. 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? Hi guys. This is a lot of Ford and Lincoln EcoBoost engines. The engine in modern cars uses many sensors to measure everything in the engine to make them as efficient as possible. There is a red locking tab on the plug: I have a 2003 BMW 745i 7 series. Within about 5 minutes of leaving the pump the engine was struggling. However, finding these vacuum leaks is often quite easy and we will talk about that further down in the article. If I get on the highway at 70 , It does not take long to get the check engine light. Started Wednesday at 03:50 PM, Ford Owners Club I've pulled the injectors and sent them for cleaning and testing, will report back results. 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. Fixing a misfiring engine can sometimes be difficult without the right knowledge and tools, due to the multitude of possible causes. Its a powerful engine with 355 to 647 hp and plenty of torque. To determine if you have low compression, remove the spark plugs. Jan 23, 2021. ouguru said: 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. . Slide the electrical connector straight back into the socket until it clicks securely into place. Once at normal operating temperature the car drives perfectly with both fuel trims very close to zero, although there is a power dip flat spot at full throttle 5500rpm which is odd, e.g. Clear editor. Misfires can cause all sorts of problems, from reduced fuel efficiency to complete engine failure. Display as a link instead, 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. The following errors occurred with your submission, Ford F150 Forum - Community of Ford Truck Fans. Additionally, they address a few reliability concerns, making the Ford 3.5 twin turbo engine from the second generation even more reliable. Tighten the bolt in the clockwise direction with the 8mm socket and a 1/4 drive ratchet until it is snug. The check engine light is one of the most common symptoms of bad spark plugs. The upstream O2 sensor, HP fuel pump and fuel rail pressure sensor have been changed. If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. cheaper than replacing the valve? The loom runs below this bracket and in my case there was a rusty stain on the loom. Check the fuel pressure and compare it to the manufacturers specifications. If you know a little about cars, youve probably noticed a difference in sounds from different engines. The updates aid in the support of increased power and torque. Only history I have is the truck has had all six ignition coils replaced . Matilda Magnetic build 2019 6.5' bed crew cab fx4 heavy tow.. Do Not Sell or Share My Personal Information. Remove the insulated cover over the injection pump to get to spark plugs # 5, and #6. In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. jsk The majority of 3.5L V6 EcoBoost engines should have no significant issues reaching 200,000 miles or beyond.