UPDATED: I have had an issue since I purchased the truck 10 months ago. Remove the insulated cover over the injection pump to get to spark plugs # 5, and #6. Carbon deposits should not pose a serious threat to the 3.5 EcoBoosts longevity. It does sound like it is running lean, it's strange that there are not codes all the time. This revealed a short circuit to earth for one of the HP fuel rail sensor wires. Emerald Gypsy 1949 Ford Bus Converted Motorhome, 1995 Ford E-350 Airstream B190 Motorhome 44, 1972 Ford Courier Twin-Turbo LS Drag Truck, Rough Rider 1988 Ford F-150 Class 8 Show Truck, Disconnect battery (since Ill be unplugging the coils and injection pump, I decided to disconnect the battery). These misfires often occur under load from the engine, such as when you accelerate quickly. 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. NQbbe Engine misfires can actually be quite difficult to diagnose even for us experts in the field. If the misfire persists after installing the new cylinder, youve identified the source of the problem. Fortunately, a set of six Ford 3.5 spark plugs typically costs between $40 and $100, depending on the source. You may also notice problems such as the engine stalling at idle or an uneven idle that jumps up and down. danielsan8787 Codes P0089, P0087 and P2626 were showing but no engine check light. The lawsuit alleges that the leaking of . Dirty filters/Fuel filter clogging. 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. Poor Performance. Older cars use a distributor to distribute the spark to all the spark plugs, which are powered by an ignition coil. Small bore plastic vacuum lines around the back of the engine have been removed and inspected, all look fine. After some research, there are problems with the CAC and many of the trucks left the factory with Mis-Gapped plugs. Started February 26, 2015, By 1. There is a red locking tab on the plug: Slide the red tab back to unlock the plug. This can lead to a variety of engine performance issues and can even lead to serious engine damage if left untreated. To refer to spark plugs and ignition coils as a issue is probably not accurate. Naturally, that engine receives some upgrades over the standard 3.5 EcoBoost to accommodate the increased power. As a reminder, the Ford 1.6L timing belt should be serviced every ten years or 150,000 kilometers (whichever comes first). 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. Their proposal is now a wiring loom or PCM, the first cost a lot in labour and the second a lot in parts and no guarantees. However, you have some control over how well the twin turbo EcoBoost engine is maintained. I have looked at the video and that's exactly as I would expect to find it. 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? However, using PI has a few additional benefits, most notably assisting in the prevention of carbon build-up. Ford F150 Forum - Community of Ford Truck Fans. The dielectric grease will help seal out any moisture, dust or debris and ensure a reliable electrical connection. 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+. If any of these are missing or incorrect, the cylinder combustion will not be done correctly, and no power will be created. By understanding the causes, symptoms, and how to fix it, you can keep your car running smoothly and avoid expensive repair costs. Overly rich running engine. This misfiring of the Ecoboost leads to rough idling, stuttering, and fault codes. The advantage of port injection is that fuel is washed over the intake ports and valves. Clues so far is that it doesn't like colder temperatures e.g. Cookie Policy - If youre experiencing misfires, heres an easy way to determine whether the problem is with the spark plug or coil. 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. Make sure that the oil change did not overfill or underfill. The smaller twin turbochargers are quick to spool and deliver a significant amount of low- and mid-range torque. 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. I would start with checking for any leaks around the intake and connect a fuel pressure gauge if possible! If you know a little about cars, youve probably noticed a difference in sounds from different engines. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum, 2006 F150 5.4 Sputtering - New thread CONDENSED. We typically recommend replacing all six spark plugs or ignition coils at the same time; this is especially true if they havent been changed in a while. Check battery terminals are properly clamped and that the earth lead between the engine and chassis is good. What are your thoughts on the 3.5 EcoBoost? Here we will look at what you need to know about engine misfires. what could be the cause of car engine running and stopping on the road? Later when I handed it over to the main dealer they changed the plugs again but no improvement. P0300 - this trouble code indicates that there is a random misfire. Additionally, the use of twin turbos provides an abundance of tuning potential for those looking to get the most out of their engines. The upstream O2 sensor, HP fuel pump and fuel rail pressure sensor have been changed. It accuses Ford of selling cars with cracked heads, seals not sealing, and catastrophic engine failures. 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. Otherwise, its primarily labor associated with gaining access to the intake ports. There is a red locking tab on the plug: Car wont move after CV Joint replacement. 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. My 1997 Sebring run good , as long as I stay under 65 . Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). Additionally, issues with the 3.5 EcoBoost timing chain guides, tensioner, and cam phasers occur. Changing transmission fluid usually takes care of torque shudder, Torque converter usually isn't bad, just needs new fluid. However, numerous other factors can cause rattle. General discussion on 2009 - 2014 Ford F150 truck. Reinstall the ignition coils retaining bolt by hand in the clockwise direction to prevent it from becoming cross threaded. Aug 11, 2020. Carbon buildup, on the other hand, can result in power loss and a variety of other drivability issues. Additionally, the 3.5 EcoBoost may generate the P0016 fault code, which will illuminate the check engine light. Additionally, they address a few reliability concerns, making the Ford 3.5 twin turbo engine from the second generation even more reliable. Misfire Codes: A bad timing chain tensioner or guide also causes the check engine light to illuminate. Additionally, Ford did an excellent job with the second-generation 3.5 EcoBoost in addressing some of the issues. Ford also added port injection to the second-generation 3.5-liter V6 twin turbo engines. Paul 56 The updates aid in the support of increased power and torque. Its best to diagnose and repair the issue as soon as possible. Hello from Denmark .I have a Audi A6 C4 2.8 ACK engine ,somtime i lose Ignition on one cylinde,i have change the spark plugs,ignition coil and the spark plugs wires.when i pull the spark plugs wires out from the spark plug next to the one that dont work it comes back one ..and all 6 cylindre works fine .then i can take the car for a spin and the same thing happento i pull out the spark plugs wires next to the bad one ..and its on the same cylinder every time ..is it a bad injection valve ? I have a 2003 BMW 745i 7 series. But with all the added power I'm experiencing, as well as the renewed tranny response, I have to figure that will all carry over to making towing easier. Its a simple and inexpensive repair. Often, it is simply normal wear and tear, but early problems are possible. Myself and many others might be happy you did, but we all would miss the joy and happiness you bring to this section All - this is a VERY WELL DOCUMENTED fatal flaw in the ecoboost. Not sure how to test injectors. Open your hood and allow the engine to cool down. 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? Its not recommended to drive with engine misfires. If youve checked all the things above, but still cant figure out whats causing the misfires in your engine, it might be worth taking the car to a professional mechanic instead. Due to the high turbo boost pressures, spark plugs and ignition coils are subjected to significant abuse. These cars are prone to misfires if the variable valve timing is malfunctioning. Hi guys Ford F-150 Misfire Symptoms. Had the DTC read as P0301 (#1 cylinder misfire) and went to my local Ford dealer, bringing a copy of Ford TSB 12-10-19. If your Scan Tool can give you access to Mode 6 Data then there may be some clues there. Had a slight misfire so I changed Spark Plugs and Coils. Started 3 hours ago, By 4) Poor Engine Performance. 5. My Toyota corolla 2009 cylinder 2 & 3 is misfiring. SMax auto is slow to shift down to 1st gear. Checked all the ground connections I could find, they all looked good. I hav tried out diff tps sensor,air flow meter,changed plugs an plug leads an checked the distributor.fuel pressure 7bar on idle.pls cn you assist. Therefore, if your 4-cylinder engine misfires on one cylinder, it will sound like a 3-cylinder engine. Specific information about the Ford 3.5 timing chain problems is scarce. This assists in removing oil deposits and preventing them from accumulating. The 3.5 EB comes in two distinct generations, which we will discuss briefly below. With a false high fuel pressure this leads to lean running and the fuel trim controls ramp up to compensate. Two of the issues listed above may not even be considered issues. If you cant find the issue elsewhere, its definitely worth taking a look at your fuel injectors. Yes I agree. The Escape is a hot mess. 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. 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. Privacy Statement - Hearing some funny sound underneath the engine. Just a theory. My scan tool isFoxwell NT530 Full Systems Scanner for Ford, which is a small stand alone hand held unit with access to all vehicle modules. Ford addressed this issue with the second-generation 3.5 EcoBoost by utilizing both direct and port injection. In this video we show you how easy it can be to diagnose a misfire on a modern engine with the right tools.Latest Ford Parts:Ignition Coil (2011-2016)-https:. This is what causes the misfire. However right now this is what I've got since I wanted to spend $20k not $35k. I would like to congratulate you on the simple way of explaining this article on misfire troubleshooting. Any advice is welcomed. Save my name, email, and website in this browser for the next time I comment. This leaves a characteristic carbon track on the insulator. 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. I thought it was misfiring or driveline related. 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. The misfire can come or go depending on what is going on with the ECM. The 3.5 liter twin turbo V6 engine was then integrated into a variety of other Ford and Lincoln models over the next few years. In many ways, its the best of both worlds, as DI has numerous advantages over PI. Speechless. You can post now and register later. Birdzini The Latman 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. Ford introduced the 3.5-liter EcoBoost engine in the Lincoln MKS, MKT, Ford Flex, and Taurus SHO in 2010. Verified plugs and wires by swapping #1 with #3. If the problem occurs repeatedly, the engine control module will illuminate the check engine light to let you know that something is wrong so that you can have it repaired. Therefore, the first thing you want to do when diagnosing misfires is to check the trouble codes with an OBD2 scanner. 2013 Ford Escape SEL AWD 2.0 Ecoboost Mileage 110,000 Hello! Its a powerful engine with 355 to 647 hp and plenty of torque. 1. How long can you drive with a misfiring engine? 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. Remove the plug on the ignition coil of the cylinder youre working on. Ecoboost 1.0 - Difference Between 100Hp And 125Hp Version ? This has been done since 2011 to get these 3.5 ecoboosts to work better. (Heres How To Fix it), 7 Best Spark Plugs Review & Buyers Guide, Car Losing Power When Accelerating? This is what causes the misfire. data shows primarily cylinder five misfiring. 6. However, be very careful when doing this and have a fire extinguisher ready. cheaper than replacing the valve? 2015 ECO 3.5 Misfire-Tried everything, I think. December 3, 2020 Ford EcoBoost problems have caused a class action lawsuit that alleges 1.5-liter, 1.6-liter and 2-liter EcoBoost engines allow coolant to leak into the cylinders. 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 engine is most sensitive to small air-fuel mixture problems at idle, so this is probably one of the first places you will notice misfires. Truck ran pretty good even picked up about 1.5 mpg, then the last couple of weeks it has become a tired dog. 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. When I got home I scanned the truck for trouble codes, and discovered these codes: P0300 (Random/Multiple Cylinder Misfire Detected). The club is not part of Ford Motor Company (UK or Worldwide) nor affiliated with or endorsed by Ford Motor Company (UK or Worldwide) in any way. If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. 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. I have had it in several times, with no results. Any thoughts, is the fiesta 1.0 ecoboost prone to wiring loom faults, ecu faults, multiplug pin corrosion, water getting places it shouldn't? Jan 23, 2021. ouguru said: 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. He shows location of low side pressure sensor (and goes through other common faults). 165k miles #1 cyl misfire code. It may stall, and not be able to start again, until you turn the ignition all the way off and back on again. (6) Motorcraft SP-580 (CYFS-12-YT4) spark plugs. New plugs areNGK Spark Plug SILZNAR8C7H (93593) same NGK part number as the originals. Bad Ignition Coil. Had a slight misfire so I changed Spark Plugs and Coils. . Ford has also issued bulletins, indicating that they are fully aware of the timing chain issues. . Labor should cost less than $100. Not too shabby in terms of longevity. Received 31 Likes on 28 Posts. Remove the plug on the ignition coil of the cylinder you're working on.
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