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. Jan 23, 2021. ouguru said: 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. Fuel related misfires can be caused from not enough fuel. Its best to diagnose and repair the issue as soon as possible. It is not recommended to drive your car at all with a misfiring car engine. It can also be caused by fuel-related issues such as a faulty fuel injector or a bad fuel pump. Declan19971 . 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. Ford EcoBoost Problems Lead To Class Action Lawsuit Fuel Injectors Can Get Clogged. Smoke Can Indicate Danger For You. Ignition coils should last approximately twice as long. Fortunately, checking the fuel pressure in your car is fairly easy with a manual fuel pressure gauge, and worth doing if you suspect low fuel pressure. Here are the 6 failures and what to look for. If you find trouble codes on an engine sensor or low fuel pressure, youll want to start the diagnosis from there. Started Thursday at 09:54 PM, By These are plastic components, so be careful that you dont break them. Some F-150 owners have complained of a mysterious misfire on these engines. laumk7 My guide has information on the top 9 most common F150 PCM problems and their symptoms. The car wont rev up over 3000revs per min.could iit b a bad ignition coil. Earlier generations of gen 1 engines encountered issues with timing chain failure and carbon buildup. On Friday they proposed and fitted a new in tank fuel pump but still in improvement. If an issue does occur, it is prudent to replace the entire timing chain assembly. Started February 9, By Thank you for explaining how "misfires" are detected by the camshaft position sensor detecting slight changes in engine speed. 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. Regards It accuses Ford of selling cars with cracked heads, seals not sealing, and catastrophic engine failures. If you "tune" this engine expect to replace spark plugs every 10,000 miles. Ford, on the other hand, took it a step further by offering a 647hp variant of the legendary Ford GT. i have hyundai accent 2012 model ,manual gear.my car RPM fluctuates even after i changed my coils ( 3 coils are good and one coil current was leaking so i changed only that coil),plug ,air filter etc.kindly suggest what is the remedy for this problem. In order to get to the #5 and #6 spark plug, youll have to unplug the harness connector on the injection pump. Like you I thought spark plugs and changed them early on but sadly no improvement. 5 Best 2.0L EcoBoost Performance Upgrade Guide, technical service bulletin that can be seen here, 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions, 2010-Present Ford S-Max, Galaxy, and Mondeo, Engine overheating (often triggering a P0217 engine code), Whistling, whining, or chirping noise coming from the engine, Engine builds no boost under acceleration. The worst condition of exhaust and converters. Repair this yourself or, if you prefer, have it done by a repair shop. If I get on the highway at 70 , It does not take long to get the check engine light. 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. plasticpat 1. This disturbs the air-fuel mixture, which may result in the 3.5 EB misfiring. Causes & How To Fix It. engine may exhibit various engine misfire symptoms accompanied by diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305 and/or P0306 stored in the . what could be the cause of car engine running and stopping on the road? However, it is entirely possible that this is simply because the F-150 is the most popular model equipped with the EcoBoost engine. Were the loom turns behind the engine there is a metal bracket which supports the connectors to the two oxygen sensors. Had a slight misfire so I changed Spark Plugs and Coils. Seriously you need to find a different garage. 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. Ford addressed this issue with the second-generation 3.5 EcoBoost by utilizing both direct and port injection. they then suggested that I replace all plugs and boots and get an induction flush. 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. I have a 2012 ford focus we just put a new ,used engine in it when I got it back the ck engine light was on we replaced the o2 sensor,then came the cylinder 1 misfire,changed out spark plug and coil still has the same code ??? Engine Control Unit (ECU) begins to misbehave . Likes: 15. A high-quality shop vac and walnut media shells are required for this job. Misfire after cold start | Page 3 | 2015+ S550 Mustang Forum (GT Any ideas out there? Curing Intercooler Condensation And Oiling Issues - Tomorrows Technician Yes it sounds like lean mixture caused by either low fuel pressure or vacuum/boost leak. If your vehicle is no longer under warranty and you experience timing chain issues, you may be able to work with Ford. Thanks for the great information passed on. Open your hood and allow the engine to cool down. In the case of a misfire a P0300 (random or multiple cylinder misfire), or specific cylinder P0301-P0306 should have triggered. Therefore, the first thing you want to do when diagnosing misfires is to check the trouble codes with an OBD2 scanner. 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. All of these parts are often very expensive to replace, so you want to make sure you do a proper diagnosis before replacing them. 165k miles #1 cyl misfire code. Remove the plug on the ignition coil of the cylinder you're working on. 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. Shops frequently charge between $400 and $600 for this service, so its not exactly inexpensive. Automotive Performance, Tuning, & Modification. The car has now been back an forward to a Ford main dealer over the last two weeks and they are stumped. Here's my top pick motor oil for the Ford EcoBoost cyclone engine. In some cases, the escaping boost pressure can be heard. 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. Vacuum leaks are a common cause of an incorrect air-fuel mixture and are fairly easy to check, so you want to start there. Low coolant levels can lead to the engine overheating, misfiring, or catching on fire. If not maintained, it could mean sending the car to the junkyard sooner . Need some advice here, I have a 2015 F150 3.5 Ecoboost. Failed injectors arent very common on most modern car models, and because of this, youll want to check out the other possible causes first. If youre unlucky, it could be due to poor compression, which can be very expensive to repair. cheaper than replacing the valve? You earlier indicated that your reservoir tank was "lowering as usual" or similar to that wording without me going back and checking. Ford EcoBoost engines deliver exceptional performance, torque, fuel economy, and towing capacity. 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. Had a slight misfire so I changed Spark Plugs and Coils. Is there any cheap way to improve compression or get rid of the code? General discussion on 2009 - 2014 Ford F150 truck. Yes. 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. Although most modern cars use an electric fuel pressure sensor, youll want to confirm the results with a manual fuel pressure gauge, because an electronic sensor can fail. Rev going down and vibrating when gear is engaged. Update, still not fixed, Ford Main dealer have discussed with Ford UKand both are unable to offer a diagnosis with any confidence. It also causes the plug to misfire. By understanding the causes, symptoms, and how to fix it, you can keep your car running smoothly and avoid expensive repair costs. If you cant find the issue elsewhere, its definitely worth taking a look at your fuel injectors. However, this problem still pops up from time to time in the Ford 3.5 Ecoboost engine upgrades. However right now this is what I've got since I wanted to spend $20k not $35k. A design defect allows coolant to leak into the cylinders of the 1.5L, 16L, and 2.0L EcoBoost engine. More often than not, your engines computer will be able to detect bad spark plugs in your F150. Push a new spark plug into the spark plug socket. Misfires can cause all sorts of problems, from reduced fuel efficiency to complete engine failure. The next thing you want to check is the fuel pressure. 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. northern_nubie Simply because these issues are classified as common does not mean they affect a large percentage of 3.5 V6 engines. Ford F150: Bad Spark Plugs Symptoms and Diagnosis The injectors are installed Under valve cover and to get to them the plenum and intake manifold needs to be removed. I wouldnt have thought a UK dealer would make the same mistake but Im almost sure they did. Your previous content has been restored. I did not find any evidence of carbon tracking on the plugs I removed. I have to admit I'm pretty fed up and disappointed with the ecoboost. If you notice any of the signs or symptoms of a misfiring engine, get them checked out by a professional as soon as possible. Ford enhanced the component before redesigning it for the second generation 3.5L twin turbo V6. As for these Ford 3.5 EcoBoost, problems result from the engine using a direct injection fuel system and being twin turbo. 3. The advantage of port injection is that fuel is washed over the intake ports and valves. Additionally, the 3.5 EcoBoost may generate the P0016 fault code, which will illuminate the check engine light. I have a problem with my Opel Monza GSI fuel injection 1.6 car only revs up to 3000 then back fires and the engine light comes on we change the fuel pump but still nothing any help please, Hi I have a ford cortina 2l i fit al new parts coil carburetor sparkplugs plugwers dustubetor points condensor and suer of timming slil cant start please can somebody tell me what to do.
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