I finally adjusted the float screw anti clock wise and my problem was solved. Started 8 hours ago, By Again, the 3.5 EcoBoost is an extremely reliable engine in general. P0300 - this trouble code indicates that there is a random misfire. If you are installing brand new plugs, tighten them until you feel the new crush washer collapse. 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. My guide has information on the top 9 most common F150 PCM problems and their symptoms. . Anyone changed a PCM for a second hand unit, can ForScan do the setup and or reprograming? Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. To find out if your engine has low compression, you need to do a compression test and compare the results to the manufacturers specifications. Ignition components can produce a wide variety of symptoms and drivability issues, so dont overlook simple spark plugs or coils. Codes P0089, P0087 and P2626 were showing but no engine check light. Up Next: Ford 1.5 EcoBoost Engine Problems: The 4 Most Common Problems. The 3.5 EcoBoost engine from the first generation utilizes only direct injection (DI), which means fuel is sprayed directly into the cylinders. Leakage and excessive fuel burn. 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. Start the engine and listen closely for any strange sounds that might indicate a problem such as a loose spark plug or a disconnected electrical connector. No PCM codes so I'm using the car to see if anything changes or codes appear. 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. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. Is it Safe to Drive With a Misfiring Engine? - YourMechanic Another frequent symptom of carbon buildup on the Ford 3.5L turbo engine is decreased power. Spark plugs should be replaced on a schedule for all car models, and not replacing them on time can cause fouled spark plugs, which can cause misfires. Tom Harbid. 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. This happens fairly quickly, say 5 seconds per event and maybe 5 events during a warm up cycle. Copyright 2023 Mechanic Base. What Happens When Cam Phasers Go Bad - It's Bad! - Car Mod Nerd Removed all wires one at time, #2,3,4 all made engine want to stall when removed. Misfire All Cylinders On One Side Of Engine | Bank 1 Or 2 - YOUCANIC So far Im very pleased with my eco as its made me grin when ever I squeeze the smile pedal and if Im not careful my tires or me wont be when replacing is needed. 5 Symptoms of a Bad Oil Control Valve (VVT Solenoid) - Oards Automotive Hub Why Does the EcoBoost Engine Keep Catching on Fire? - Ford Problems 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. 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. Here are some of the symptoms of a bad VCT solenoid: 1. Well also look at how to determine if your engine is misfiring and answer some common questions about misfires. 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. If you notice that it vibrates more than usual, it could be a sign that the engine is misfiring. The upstream O2 sensor, HP fuel pump and fuel rail pressure sensor have been changed. Posts: 3. Started 4 hours ago, By Here is a more detailed list of the most common cause of engine misfires: 1. The known common problems of the Ford 1.5 Ecoboost engine are: The Problem Of Overheating Has Been Exceeding. NQbbe The most common situation where you will feel misfires is in high gear, low RPM, and with the gas pedal to the floor. This is what causes the misfire. Key Points. F150 3.5L Ecoboost misfiring | Ford Forums Ford, on the other hand, took it a step further by offering a 647hp variant of the legendary Ford GT. Well discuss some of the most common issues with the Ford 3.5 EcoBoost V6 in this article, as well as its overall reliability. 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. 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. Started 4 hours ago, By Ford 3.5 TT V6 Carbon Build-Up Symptoms. The smaller twin turbochargers are quick to spool and deliver a significant amount of low- and mid-range torque. 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. Ford 1.5 EcoBoost Engine Problems: Reliability, Specs & Reviews Had a slight misfire so I changed Spark Plugs and Coils. Naturally, that engine receives some upgrades over the standard 3.5 EcoBoost to accommodate the increased power. good article but didnt cover a p0300 with misfires on all cylinders on 1 bank of a v8. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty spark plugs to low engine . Speechless. You can post now and register later. This includes misfires, power loss, and a rough idle, among other things. So the car in now at a local garage and they are struggling as well. This has a detection period of 1000 engine . Hi guys. 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 next thing you want to check is the fuel pressure. Puzzled. If it did, you know its a problem with either the spark plugs or the ignition coil, and you will want to replace all the spark plugs and the ignition coil on that cylinder. Magnus is the owner and main author of Mechanicbase. Started 5 hours ago, By I would start with checking for any leaks around the intake and connect a fuel pressure gauge if possible! In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. Additionally, they address a few reliability concerns, making the Ford 3.5 twin turbo engine from the second generation even more reliable. Drop In Engine Power: . Causes and Methods to Fix Multiple Cylinder Misfire on Ford F150. driveceladon.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Ford F150: Bad Spark Plugs Symptoms and Diagnosis It is not recommended to drive your car at all with a misfiring car engine. How Much Does It Cost to Fix Engine Misfires? Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). By This video may help. I will definetly come back for more updates on how to solve car problems. He shows location of low side pressure sensor (and goes through other common faults). The engine control module monitors the crankshaft rotation speed with the crankshaft position sensor, and if the speed does not increase slightly on a cylinder after the combustion, it means that the engine is misfiring, and a trouble code will be stored. This makes the 3.5 EB an excellent engine for towing and fun around town without requiring full use of the engines RPM range. I think the Fuel Pump Module is at the Fuel Tank, I'm not sure where it measures the pressure though. FORScan can access Mode 6 but I don't know what TID's are available for your car. Its a simple and inexpensive repair. 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. 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. 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. I really appreciate you, thx for sharing that with us! Ford introduced the 3.5-liter EcoBoost engine in the Lincoln MKS, MKT, Ford Flex, and Taurus SHO in 2010. First check all ground connections are clean and tight. However, it is a much simpler job than changing the spark plugs. To determine if you have low compression, remove the spark plugs. I'd get rid of this truck if I could but the timing just isn't right. 7 Common Ford F-150 2.7 and 3.5 EcoBoost Problems If not maintained, it could mean sending the car to the junkyard sooner . Fuel Injectors Can Get Clogged. Take care of the 3.5 EcoBoost and it will almost certainly reward you with a pleasant, reliable driving experience. That being said a few things to watch out for. Bad Ignition Coil. (6) Motorcraft SP-580 (CYFS-12-YT4) spark plugs. 2012 Ford F-150 Engine Missfires Under Hard Acceleration Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? More often than not, your engines computer will be able to detect bad spark plugs in your F150. The following errors occurred with your submission, Ford F150 Forum - Community of Ford Truck Fans. 3. Received 31 Likes on 28 Posts. If either the distributor or the ignition coil creates a weak spark, it can cause misfires. At 96,000 Miles. 97 Toyota 4Runner 2.7 engine. Terms of Service - I had an F150 and an Escape both do exactly these same things. 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. The last number represents the cylinder that is having the misfire. To protect yourself, here are the tried and true methods: Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. 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. However, finding these vacuum leaks is often quite easy and we will talk about that further down in the article. Woww wow wow great article! One of the conditions that is required to set the code is a fuel . Turbos lead to high cylinder pressures, which in return stress the entire ignition. Turbo engines do require some additional maintenance, but we believe it is worthwhile in the long run. P0301 cold start misfire | Ford Mustang Ecoboost Forum There are always a few kinks to iron out, and they were relatively minor with the 3.5 V6. My caddy 1.6 carb had still misfired after changing coil, boggy cords, plugs, distributor cap, rotor and some fuel lines. Another subject well delve into. Replacing the timing chain and other critical components is not a simple or inexpensive task. Misfires can cause all sorts of problems, from reduced fuel efficiency to complete engine failure. If you lose power while driving on a busy road, this is a safety hazard. I thought it was misfiring or driveline related. If your engine is misfiring, it's important to determine the cause as soon as possible. However, this problem still pops up from time to time in the Ford 3.5 Ecoboost engine upgrades. So far I filled the the tank with premium fuel and added an injector cleaner, no change after 100 miles. If the engine speed increases, it means there is a leak and the engine is injecting the flammable spray. The car has run perfectly all summer but in the last couple of weeks the fault is back. Double check that the spark plugs are tight before moving on to the next steps. The problem is variable and intermittent but looks to be the same using both the original and a spare fuel rail pressure sensor. The updates aid in the support of increased power and torque. Symptoms Of Damaged Or Leaking Intercooler. Slide the electrical connector straight back into the socket until it clicks securely into place. Yes. runs rough, no white smoke, no water in oil. Ford 3.5 EcoBoost Engine Problems: Reliability, Specs & Reviews Can a cam sensor make it miss fire on one cyl. If you do this, and change spark plugs every 30k miles, you will never have a misfire ever again. So I would start there and then continue troubleshooting from whatever code you get. The most common causes of engine misfires are bad ignition coils or failed spark plugs. The misfire can come or go depending on what is going on with the ECM. You cannot paste images directly. 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. 2. Ford 3.5L EcoBoost Problems - UnderhoodService 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. 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. Manage Preferences - To be honest, this is mostly here because weve run out of other topics to discuss regarding the 3.5 EcoBoost. 2011 f150 ecoboost misfire p0301 - Ford F150 Forum They diagnose all the pretty computer BS and forget that under all the plastic and computers and pretty engine covers theres still a spark-ignited engine. Contact Us - and you'll notice engine misfires, startle, and low millage. 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. Received 13 Likes on 13 Posts. Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. Misfires Are More Common Than You'd Think. Although this is a very rare occurrence, it is critical to repair the timing chain promptly if problems arise. What Happens When You Put Too Much Oil in Your Car? Acts like it doesn't know what gear it should be in. Labor should cost less than $100. Was told it might be the fuel sending unit . 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:. Additionally, timing chain issues appear to be more prevalent on F-150 models than on others. Started Thursday at 09:54 PM, By 2.7 EcoBoost stumble on highway acceleration - F150 Forum Timing chain replacement is likely to cost in the thousands of dollars range. Started 14 hours ago, By Display as a link instead, You may also notice that the engine does not sound like it used to, and that your car has reduced power and fuel efficiency. As mentioned above, the ECM controls the engine timing, and air/fuel ratio. Condensation can build up and be trapped in the intercooler on certain F-150 models with the 3.5L EcoBoost V6. This is not to say that the first generation engine is a bad engine by any means. 3. 1. Ford F150: Bad ECM Symptoms + Diagnosis | Drivetrain Resource Changed the crank sensor the other day as a precaution as the last two cars I have owned have needed crank sensors in mid to later life. It also causes the plug to misfire. The worst condition of exhaust and converters. Additionally, the 3.5 EcoBoost may generate the P0016 fault code, which will illuminate the check engine light. Need some advice here, I have a 2015 F150 3.5 Ecoboost. Advertising - Additionally, engines are prone to a variety of other issues that we are not discussing particularly as they age and mileage increases. Engine misfires are serious. Its not recommended to drive with engine misfires. Additionally, Ford redesigned the timing chain in response to concerns about the previous designs reliability. We are very familiar with this coming from the BMW world. Therefore, if you notice that your car engine idles rougher than usual, it could be a sign of a misfiring engine. There are several misfire related trouble codes. 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. Fuel related misfires can be caused from not enough fuel. TuningPro.co is owned and operated by 8020 Media. Removing #1 resulted in NO difference in idle. Often, it is simply normal wear and tear, but early problems are possible. The most common code you will see is the P0300 code, along with a code like P030X. Ford F150 Multiple Cylinder Misfire: Causes, Symptoms, Fix It It suddenly lost power like it wasnt running on all 6-cylinders, and the check engine light was blinking. Not too shabby in terms of longevity. Low fuel pressure is another thing that can cause misfires. 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. Lower the ignition coil back down into the well and push it on to the top of the new spark plug. Specific information about the Ford 3.5 timing chain problems is scarce. Started February 5, 2013, By In any case, the first generation EcoBoost produces 355-380 horsepower, depending on the vehicle. Car wont move after CV Joint replacement. Started February 26, 2015, By RELATED: 8 Causes of Low Compression in a Car Engine (& How to Fix). Line up the bolt hole in the ignition coil assembly with the corresponding hole in the top of the engine. Having said that, well delve deeper into these 3.5 EcoBoost issues below. Its a powerful engine with 355 to 647 hp and plenty of torque. Reinstall the ignition coils retaining bolt by hand in the clockwise direction to prevent it from becoming cross threaded. If an issue does occur, it is prudent to replace the entire timing chain assembly. There Can Be Damage To Different Parts Of The Motor. (Heres How To Fix it), 7 Best Spark Plugs Review & Buyers Guide, Car Losing Power When Accelerating? Ford 1.6 EcoBoost Engine Problems: The 4 Most Common Problems