Additionally, issues with the 3.5 EcoBoost timing chain guides, tensioner, and cam phasers occur. 97 Toyota 4Runner 2.7 engine. Up Next: Ford 1.5 EcoBoost Engine Problems: The 4 Most Common Problems. So the car in now at a local garage and they are struggling as well. laumk7 The updates aid in the support of increased power and torque. Automotive Performance, Tuning, & Modification. 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. 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. If this gasket leaks, it will draw air into the combustion chamber, causing the air-fuel mixture to become too lean, and this can cause misfires. Avoid over tightening the new spark plugs to prevent from stripping the aluminum threads. Determine which cylinder(s) is misfiring by inspecting the fault codes. 27 Jan 2018 00:24 - 28 Jan 2018 10:44 #17294. Thus until reading your wonderful explanation, I could not figure out why my computer was calling my burnt valve a "misfire", which I think is a bit misleading of OBD2. Had a slight misfire so I changed Spark Plugs and Coils. Here's my top pick motor oil for the Ford EcoBoost cyclone engine. Need some advice here, I have a 2015 F150 3.5 Ecoboost. For the car engine to work properly, the perfect mixture of air and fuel is required, along with a clear and strong spark. What Happens When You Put Too Much Oil in Your Car? Always starts and idles perfectly, even passed its MOT. However, it is a much simpler job than changing the spark plugs. Hi all, my 1.0 ecoboost has recently started to misfire or hesitate under light throttles. The car is my daily driver and I'm not necessarily looking for an . 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. The X is replaced with the cylinder number where the cylinder misfire occurs; for example P0301 is a cylinder 1 misfire. You may also notice problems such as the engine stalling at idle or an uneven idle that jumps up and down. However, because carbon build-up occurs over time, it is frequently difficult to detect. Ford F-150 Misfire Symptoms. Maintain the Ford EcoBoost engine properly, and it will almost certainly reward you with a dependable, enjoyable driving experience. So far the dealership has replaced a coil and all spark plugs, misfire no longer severe, but still present. This is a repeat of a problem I had about 2 years ago which was never diagnosed but cleared itself which is always a bit unsatisfactory Initially the symptoms were very noticeable and made the car difficult to drive, then progressively improved during the 10 mile journey home and are now just annoying. To protect yourself, here are the tried and true methods: Remember, the root cause of ecoboost misfire is the condensate buildup from the intercooler. There is a red locking tab on the plug: My guide has information on the top 9 most common F150 PCM problems and their symptoms. This is what causes the misfire. The engine started fine and has been driving perfectly for over a week now. Turbo engines require more maintenance than the average engine. NQbbe One of the conditions that is required to set the code is a fuel . In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. P0300 - this trouble code indicates that there is a random misfire. Keep your Ford F150 truck running strong. Hi guys. Ford also added port injection to the second-generation 3.5-liter V6 twin turbo engines. If misfires are occurring randomly, the check engine light may remain on. Symptoms of 2.0L EcoBoost Coolant Intrusion. You can do this with either a compression tester or a leak-down tester. It is one of the variables over which we have no control. But how do you tell if your engine is misfiring, and what could be causing it? I'd get rid of this truck if I could but the timing just isn't right. Were the loom turns behind the engine there is a metal bracket which supports the connectors to the two oxygen sensors. Read more: Low Fuel Pressure Symptoms, Causes (& How To Fix it). Nonetheless, turbo technology has advanced significantly over the last few decades. 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. It does sound like it is running lean, it's strange that there are not codes all the time. The Ford 3.5 twin turbo engine, we believe, receives above-average reliability ratings. good article but didnt cover a p0300 with misfires on all cylinders on 1 bank of a v8. NOTE CYFS-12-YT4 replaced the original CYFS-12-YT3 spark plug. By understanding the causes, symptoms, and how to fix it, you can keep your car running smoothly and avoid expensive repair costs. On Friday they proposed and fitted a new in tank fuel pump but still in improvement. Fuel related misfires can be caused from not enough fuel. Due to the high turbo boost pressures, spark plugs and ignition coils are subjected to significant abuse. If the check engine light is on, there should be a trouble code stored that needs to be checked with an OBD2 scanner. I don't know what Scan Tool you are using but FORScan is your best bet for Live Data on any Ford car. Ignition components can produce a wide variety of symptoms and drivability issues, so dont overlook simple spark plugs or coils. Privacy Statement - If I should get a misfire code again, than Ill replace the ignition coil for whatever cylinder the code is for. 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. A DIY solution to a water leak can have disastrous results. Remove the engine oil filler cap, and remove the plastic engine cover by lifting up and pulling forward. To be honest, this is mostly here because weve run out of other topics to discuss regarding the 3.5 EcoBoost. A class-action lawsuit just filed says that the 1.5-liter, 1.6-liter, and 2.0-liter EcoBoost engines leak coolant into cylinders. If either the distributor or the ignition coil creates a weak spark, it can cause misfires. 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). What are your thoughts on the 3.5 EcoBoost? We both feel that the the low range fuel pressure sensor reading a constant 5 volts is worth investigating, but as we can actually find a low pressure sensor (under the bonnet) we are none the wiser. If I get on the highway at 70 , It does not take long to get the check engine light. I've pulled the injectors and sent them for cleaning and testing, will report back results. My Toyota corolla 2009 cylinder 2 & 3 is misfiring. The engine from the second generation is used in the following models: With that background information out of the way, lets get to the point. It may stall, and not be able to start again, until you turn the ignition all the way off and back on again. You also want to ensure that the engines compression is correct, so you must do a compression test on all cylinders. SMax auto is slow to shift down to 1st gear. Ford has also issued bulletins, indicating that they are fully aware of the timing chain issues. RyanP2023 Therefore, if you have checked the basics, it may be worth taking your car to a qualified mechanic for expert advice. TuningPro.co is owned and operated by 8020 Media. 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. 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. 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). Best regards, In worst case scenario, if the ignition coils are in really bad condition, the engine will not start. With closer inspection it was clear that there was contact between the loom and the square edge of the bracket. Declan19971 The plugs should be fine, then. In order to get to the #5 and #6 spark plug, youll have to unplug the harness connector on the injection pump. The Escape is a hot mess. The known common problems of the Ford 1.5 Ecoboost engine are: The Problem Of Overheating Has Been Exceeding. The engine misfires, resulting in rough idling, stuttering, and fault codes. 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. Paste as plain text instead, . Although the engine appears the same on my car there is no sensor on the low-pressure side fitted. Your previous content has been restored. Seriously you need to find a different garage. Hi, Magnus i read your instructions, i own a vw tourage 2008, according to the trouble codes i got from dtc the engine has a misfire on all 6 cylinders, and random misfire, one thing that i wonder is that the engine sounds smoothly well tuned, the check engine light is on, I'm replacing the spark plugs they are dirty and according to the a page that i found in Google the gap should be. In fact, nuzzle 2 & 3 does not bring up any sign it is OK when removed from the plug head to the nuzzle. Aug 11, 2020. The 3.5 EB comes in two distinct generations, which we will discuss briefly below. 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. Leakage and excessive fuel burn. cheaper than replacing the valve? Although we adore the 3.5 EcoBoost, no engine is perfect. Any no improvement. Ford 3.5 TT V6 Carbon Build-Up Symptoms. 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. Misfires Are More Common Than You'd Think. 9. @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. danielsan8787 Its not recommended to drive with engine misfires. The official Ford website can be found at http://www.ford.co.uk/, Fiesta 2013 1.0 Ecoboost misfire and or hesitation under light throttle. What Are The Symptoms Of Engine Misfires? As for these Ford 3.5 EcoBoost, problems result from the engine using a direct injection fuel system and being twin turbo. @GARY MASSEY If youre unlucky, it could be due to poor compression, which can be very expensive to repair. Misfires can cause serious damage to your engines internal parts and the catalytic converter, which can be very costly to repair. If it is too high or too low, you need to inspect the components of the fuel system such as the fuel pump, fuel filter, and fuel pressure regulator. Leave a comment and inform us! With the ignition coil out, you can remove the spark plug using a 5/8-inch spark plug socket, extension, and ratchet. 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.