You earlier indicated that your reservoir tank was "lowering as usual" or similar to that wording without me going back and checking. However, Ford pioneered the use of turbochargers, direct injection, and variable valve timing. 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. Low coolant levels can lead to the engine overheating, misfiring, or catching on fire. I also attempted to clear the keep alive memory by disconnecting the battery for an hour, don't know if this worked but it did zero all the average fuel economy data. Advertising - In some cases, the escaping boost pressure can be heard. 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 Started Wednesday at 03:50 PM, Ford Owners Club Tighten the plug in the clockwise direction with the 3/8 drive ratchet to just past hand tight. Started 5 hours ago, By Is this possible ? 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. 4. Checked all the ground connections I could find, they all looked good. If misfires are occurring randomly, the check engine light may remain on. 2. @RichBrew has been through this already with the same symptoms as @Cmw458 and I. Don't take this lightly for too long and/or pass it off as carbon build up. Ford F-150 Misfire Symptoms. Additionally, issues with the 3.5 EcoBoost timing chain guides, tensioner, and cam phasers occur. It gains 375-450 horsepower in the majority of models. Additionally, timing chain issues appear to be more prevalent on F-150 models than on others. I wouldnt have thought a UK dealer would make the same mistake but Im almost sure they did. Driving with a misfiring engine may not be dangerous right away, but over time it will wear on your engine and you can potentially damage the vehicle. There arent many issues that frequently occur with these engines. Truck ran pretty good even picked up about 1.5 mpg, then the last couple of weeks it has become a tired dog. https://www.youtube.com/watch?v=0J83RZi3eCE, Hi thanks for your reply. Apply some dielectric grease to the opening in the rubber dust boot at the bottom of the ignition coil. Ford 1.6 Inline-4 Timing Belt Change. Privacy Statement - The most common car sensors that cause an incorrect air-fuel mixture are the MAF sensor, the MAP sensor, the oxygen sensor, and the coolant temperature sensor. The 3.5 EcoBoost engine from the first generation utilizes only direct injection (DI), which means fuel is sprayed directly into the cylinders. Additionally, Ford redesigned the timing chain in response to concerns about the previous designs reliability. For the car engine to work properly, the perfect mixture of air and fuel is required, along with a clear and strong spark. Parts cannon loaded and ready -- Customers paying -- Fire at will !! 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. 5/8-inch spark plug socket for 3/8-inch ratchet. Privacy Statement - To be honest, this is mostly here because weve run out of other topics to discuss regarding the 3.5 EcoBoost. . As a result, spark plugs and ignition coils start bringing issues. I don't know what Scan Tool you are using but FORScan is your best bet for Live Data on any Ford car. . Changing transmission fluid usually takes care of torque shudder, Torque converter usually isn't bad, just needs new fluid. By understanding the causes, symptoms, and how to fix it, you can keep your car running smoothly and avoid expensive repair costs. Were the loom turns behind the engine there is a metal bracket which supports the connectors to the two oxygen sensors. You may also consider simply replacing the spark plugs. 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. A car engine is very balanced when it is manufactured and often has balance shafts and various tricks to get as little vibration out of it as possible. The injectors are installed Under valve cover and to get to them the plenum and intake manifold needs to be removed. More precisely, it appears to affect primarily 3.5 EcoBoost engines manufactured between 2010 and 2014. Tighten the bolt in the clockwise direction with the 8mm socket and a 1/4 drive ratchet until it is snug. What Are The Causes Of An Engine Misfire? As mentioned above, the ECM controls the engine timing, and air/fuel ratio. Zain. 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. 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. If you're located in Florida especially in Hollywood, i wanna meet you so i can get my car fixed for good. Received 31 Likes on 28 Posts. As fuel poor pressure measurement and control was one of the key symptoms this was almost certainly the smoking gun. If you think you may have a problem with engine misfires, the best thing to do is take it to a mechanic to have it checked out. Here are the 6 failures and what to look for. At 96,000 Miles. Started February 20, By When an engine misfires, it can cause reduced fuel economy, engine damage, and a loss of power. First check all ground connections are clean and tight. This is why you HAVE TO DRILL the 1/16" intercooler weep hole. This is what causes the misfire. That being said a few things to watch out for. 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. Rather than that, they are a few of the most frequently encountered issues when something goes wrong. In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. Thx, My toyota vitz 2nz engine still misfiring even after puting new plugs wat can b the problem. It can also be caused by fuel-related issues such as a faulty fuel injector or a bad fuel pump. Continuing to drive with a misfiring engine can cause serious damage to your cars engine. In addition to removing the injectors other items including air ducts, air box, filter MAF, battery, PCM and battery box were removed to help further inspect the wiring loom. laumk7 Ryan jones 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). Ive been driving the Expedition for a month now with the new plugs, and havent received a misfire code. Started Wednesday at 06:15 PM, By Push in the red plastic lock tab to secure the power plug. Shudder fix additive can also help as stated above. As for these Ford 3.5 EcoBoost, problems result from the engine using a direct injection fuel system and being twin turbo. If the check engine light is on, there should be a trouble code stored that needs to be checked with an OBD2 scanner. You may also notice other performance issues, like slower acceleration than usual or a stalling engine while accelerating. Zain here I have a different engine to your one but for comparison my Low side pressure is normally around 400-450 Kpa. Additionally, direct injection causes carbon deposits on the intake valves, which can cause drivability issues. The Ford 3.5 twin turbo engine, we believe, receives above-average reliability ratings. The pre-2017 3.5L EcoBoost engine had several issues ranging from engine misfires to timing chain issues, while the second-generation engine introduced in 2017 had improvements in timing components and fuel injection. 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. Code says multiple misfire's . This leaves a characteristic carbon track on the insulator. 1. Keep your Ford F150 truck running strong. Hearing some funny sound underneath the engine. Well discuss some of the most common issues with the Ford 3.5 EcoBoost V6 in this article, as well as its overall reliability. Faulty plugs. The most common causes of engine misfires are bad ignition coils or failed spark plugs. 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 . Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates. Symptoms of a spark plug or ignition coil on the verge of failure include the following: Typically, plugs and coils exhibit the same symptoms. Some F-150 owners have complained of a mysterious misfire on these engines. To missmy06 I havent seen a positive post out of you yet and Im sure any dealership would be happy to trade in your current truck for another 06 and down and probably the finances would not change so go for it. If you find trouble codes on an engine sensor or low fuel pressure, youll want to start the diagnosis from there. Additionally, the 3.5 EcoBoost may generate the P0016 fault code, which will illuminate the check engine light. I need some direction with this one. 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. I have not noticed any slack in the joint. Car wont move after CV Joint replacement. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our. The car wont rev up over 3000revs per min.could iit b a bad ignition coil. Automotive Performance, Tuning, & Modification. cheaper than replacing the valve? Symptoms of excess carbon build-up on the 3.5 EcoBoost intake valves and ports include: Misfires; Rough idle; Stuttering / hesitation; Power loss; Most of these symptoms are a by-product of the first symptom at hand - misfires. Hesitation everytime I get into the throttle. Excessive carbon buildup on the 2.7 EcoBoost may result in the following symptoms: Engine misfires Speechless. You can post now and register later. However, be very careful when doing this and have a fire extinguisher ready. The X is replaced with the cylinder number where the cylinder misfire occurs; for example P0301 is a cylinder 1 misfire. There is a red locking tab on the plug: Slide the red tab back to unlock the plug. This disturbs the air-fuel mixture, which may result in the 3.5 EB misfiring. There are also many vacuum lines on the intake manifold that can leak, giving the same symptoms as a bad intake manifold gasket. TuningPro.co is owned and operated by 8020 Media. When I got home I scanned the truck for trouble codes, and discovered these codes: P0300 (Random/Multiple Cylinder Misfire Detected). Anyone changed a PCM for a second hand unit, can ForScan do the setup and or reprograming? 8. So the car in now at a local garage and they are struggling as well. Modern cars have good monitoring systems for all the different car sensors on the engine. jsk However, this problem still pops up from time to time in the Ford 3.5 Ecoboost engine upgrades. Update, car is back from the garage without a diagnosis. The 74-page lawsuit was filed by five plaintiffs, Robert Reed, Stacy Coppock, Craig Morford, Kelli Morford, and David . Regards How to Spot Carbon Buildup. 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. Verified plugs and wires by swapping #1 with #3. If you cant find the issue elsewhere, its definitely worth taking a look at your fuel injectors. The carbon build-up causes uneven combustion, and it messes up the air-fuel mixture. 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. Condensation in the Intercooler. Try better fuel, see if it goes away. So far I filled the the tank with premium fuel and added an injector cleaner, no change after 100 miles. Started 3 hours ago, By Connect a compression gauge to the spark plug holes and crank the engine several times. Paste as plain text instead, Overly rich running engine. Get at least 20% off selected Ford parts on eBay View parts on eBay now! To fix engine misfires, you need to read the trouble codes from the engine control module and continue troubleshooting from there. Its plastic, so you dont want to pry on it or you may break it. Fuel related . Spark Plugs And Ignition Coils Issues. 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. A DIY solution to a water leak can have disastrous results. Damaged injecting tools. Engine Control Unit (ECU) begins to misbehave . To the OP glad your running top notch, and here I thought this was going to be positive threadthat was short livedlol. You may or may not be able to monitor High and Low side Fuel Pressure readings, actual and desired. With the ignition coil out, you can remove the spark plug using a 5/8-inch spark plug socket, extension, and ratchet. Here are some of the symptoms of a bad VCT solenoid: 1. At the moment I can only comment on two of your points. When it reaches normal speed it quit shaking. Dave thanks for your reply and suggestions. If your car engine is misfiring, it is important to find out the cause and fix it as soon as possible. If you see a blinking or flashing check engine light, thats another strong sign that your engine is misfiring. My guide has information on the top 9 most common F150 PCM problems and their symptoms. Started 4 hours ago, By I have to admit I'm pretty fed up and disappointed with the ecoboost. On the 2.7L EcoBoost expect to replace spark plugs at around 40,000 to 60,000 miles. This includes misfires, power loss, and a rough idle, among other things. If you know a little about cars, youve probably noticed a difference in sounds from different engines. Its a powerful engine with 355 to 647 hp and plenty of torque. But how do you tell if your engine is misfiring, and what could be causing it? There Can Be Damage To Different Parts Of The Motor. Reinstall the injection pump cover, the engine cover, and the oil cap. We used Mitchell 1 to look up the information for setting a P0300. These are the most common symptoms of 2.0L EcoBoost coolant intrusion, but not all of them. I did the thottle position sensor reset procedure and that helped for about 2 days. Finally, when the timing chain stretches, it can throw off the ignition timing, resulting in drivability problems. 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. Remove the ignition coil from that cylinder and replace it with one from a non-misfiring cylinder. Up Next: Ford 1.5 EcoBoost Engine Problems: The 4 Most Common Problems. I knew my Metro had a burnt valve and low compression, but I would not call that a misfire, since the fuel is burning fine, just leaking into the exhaust and delivering less power. The smaller twin turbochargers are quick to spool and deliver a significant amount of low- and mid-range torque. Has been a great explanation about the theme. 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. Again, the method outlined above is an effective way to ascertain the source of the problem. You may also notice problems such as the engine stalling at idle or an uneven idle that jumps up and down. 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. Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. Compare the results with the manufacturers specifications, and if the compression is low on a cylinder, you need to inspect the engine parts such as the timing belt, piston rings, valves, or pistons. May 9, 2021. Another possible problem that can cause misfire fault codes on only one side is low compression. The misfire can come or go depending on what is going on with the ECM. Unexpected misfires, check engine light illuminations, rough idleall of these symptoms could indicate that your EcoBoost's timing belt needs to be replaced. Carbon build-up is primarily an issue with first-generation engines. In rare cases, it can also happen because of low engine compression. Failed injectors arent very common on most modern car models, and because of this, youll want to check out the other possible causes first. Misfires Are More Common Than You'd Think. The first day I had my truck, changed plugs and boots.had to it misfired like mad on the way home and knew it had to be done..got a extra 1k trade in for taking it that way and then drilled hole, also cleaned the maf sensors, ran like a champ and still does. The loom runs below this bracket and in my case there was a rusty stain on the loom. Take care of the 3.5 EcoBoost and it will almost certainly reward you with a pleasant, reliable driving experience. 97 Toyota 4Runner 2.7 engine. Repair this yourself or, if you prefer, have it done by a repair shop. Long story short I took my vehicle to a ford dealership over a check engine light and very low power and was told that the turbo was the culprit and needs replacing. Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. Pretty common to have a misfire on these motors on cold start. While the 3.5 EcoBoost is an excellent engine in general, no engine is perfect, and this is true here. Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). As a result, the cylinders of the 2.7 EcoBoost may experience inconsistent air delivery due to restricted airflow. Yes I agree. Aside from an oil extractor pump, you need a container to pour the excess oil, a clean rag, and a pair of gloves. Best regards, Fuel related misfires can be caused from bad fuel. Make sure that the oil change did not overfill or underfill. VVT has the ability to generate more power or save more fuel depending on the phase of the camshafts. Although the engine appears the same on my car there is no sensor on the low-pressure side fitted. I used a flat blade screwdriver behind the coil to help wiggle it a little to get it out. Ford 3.5 TT V6 Carbon Build-Up Symptoms. In addition, the check engine light may also be on if misfires are specific to a particular cylinder. As a reminder, the Ford 1.6L timing belt should be serviced every ten years or 150,000 kilometers (whichever comes first). 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. The carbon deposits can cause un-even amounts of air to enter to cylinders. 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. Ford told me that plugs 2 and 6 are cracked and coil in number 2 needs replaced. This is a lot of Ford and Lincoln EcoBoost engines. Remove the engine oil filler cap, and remove the plastic engine cover by lifting up and pulling forward. Every 10,000 miles, our twin turbocharged 335i with the N54 engine requires new spark plugs. So, as its intermittent and clears after 5 or 6 miles I'm continuing to drive it hoping some new clues will appear, its done about 2k miles since the last trip to the garage. Failure of any of these sensors can cause an incorrect air-fuel mixture to enter the engine, which can cause the engine to misfire. Before delving into 3.5 EcoBoost problems, its necessary to establish some context. Ecoboost 1.0 - Difference Between 100Hp And 125Hp Version ? This identifies the root cause as the Charge Air Cooler/CAC when it . The 3.5 EB comes in two distinct generations, which we will discuss briefly below. 7. John, thanks for your reply. This detects failures over a period of 200 revolutions. Started 4 hours ago, By If an issue does occur, it is prudent to replace the entire timing chain assembly. Manage Preferences - Again, the 3.5 EcoBoost is an extremely reliable engine in general. Now the symptoms are less noticeable there are no codes. 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. 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). With a false high fuel pressure this leads to lean running and the fuel trim controls ramp up to compensate. Line up the bolt hole in the ignition coil assembly with the corresponding hole in the top of the engine. It is, however, inherent in owning a twin turbo, direct injected engine. Its my first scan tool which has been useful but is limited by my knowledge and the small screen. 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. and you'll notice engine misfires, startle, and low millage. Again, be careful that you dont apply to much force and break the plug. 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. Changed the coil packs, no improvement. Last thoughtI've still yet to test it towingneed to know whether I'll still have to play the game jumping between 4th and 3rd depending on the incline. If you notice any of the signs or symptoms of a misfiring engine, get them checked out by a professional as soon as possible. What else can I do??? According to . 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 ? READ MORE: 15 Types of Car Sensors (& What They Do). Then, clear the codes and drive for a while to see if the problem has moved to another cylinder. if everything is working correctly. Turbos lead to high cylinder pressures, which in return stress the entire ignition. However, because carbon build-up occurs over time, it is frequently difficult to detect. You can expect a cost of $200 to $500 to fix a misfiring engine in most cases. I bet that your actual problem is the spark plugs. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? Always starts and idles perfectly, even passed its MOT. Hi my name is Victor I have a 07 Pontiac Grand Prix V6 I am getting a code low sufficiency threshold have changed wires plugs coils and it runs fine and when I put it under a load start start to run rough so what clean the injectors again it runs fine until I put under load what is the problem, I replaced both coils 8 spark plugs and wires still running bad checked my ekg valve it works motor still shakes and body as well could it be a faulty fuel injector I need help. Causes and Methods to Fix Multiple Cylinder Misfire on Ford F150. The check engine light is one of the most common symptoms of bad spark plugs. Some of the most common causes of engine misfires are bad spark plugs or a bad ignition coil, which can be relatively cheap to repair. 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? If your car engine sounds unusual, its possible that your engine is misfiring on every cycle. 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. Re: 2011 f150 ecoboost misfire p0301. The socket should have a rubber insert or a strong magnet to securely hold the plug in place. Misfires Rough idle Stuttering / hesitation Power loss Check engine light (misfire codes) Prevent ignition coil failures I4 2.3L EcoBoost Engine / Mods: Bolt-ons, Exhaust, . Started Thursday at 09:49 AM, By 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. Remove the engine oil filler cap, and remove the plastic engine cover by lifting up and pulling forward. Additionally, Ford did an excellent job with the second-generation 3.5 EcoBoost in addressing some of the issues. March 10, 2022 in General Ford Related Discussions. If your car's check engine lights come on and stay on, more than likely the camshaft sensor is bad. Remove the bolt that holds the coil pack in place with a 8mm (5/16) socket. Aug 11, 2020. The known common problems of the Ford 1.5 Ecoboost engine are: The Problem Of Overheating Has Been Exceeding. Read more: 8 Symptoms of a Bad Fuel Injector (& Replacement Cost). Discuss all things maintenance here. Symptoms of 3.5L Ecoboost misfire are usually related to heavy carbon build-up on the ignition coil. 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. Spark plugs for stock 3.5 EcoBoost engines will likely need to be replaced every 40,000 to 60,000 miles. When symptoms exist and there are no codes, it becomes a little more difficult. If the misfire persists after installing the new cylinder, youve identified the source of the problem. Additionally, turbocharging and direct injection assist the 3.5 V6 in remaining fuel efficient and emission-free. Therefore, if you notice that your car engine idles rougher than usual, it could be a sign of a misfiring engine. By Carefully lower the new spark plug down into the well.
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