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I've got a '99 F150, 132k Miles, 5.4l. Las week it came up with a bad misfire in the number 4 cylinder. I've been through everything on it, switched coil packs around, still misfiring. Removed, checked, and cleaned fuel injectors, and also swapped the injectors from cylinders 1 and 4 just to verify. I swapped the coils from 2 and 4.Cylinder 7 misfire. by Melon » Tue Mar 11, 2008 9:49 pm. 2000 5.4L. Took it to the dealership to get the plugs done and got it back a week ago or so. Didn't seem like it was running right, but didn't have codes til today. Also, haven't driven it since then cuz gas prices are nuts and my 'Bird does better.2004 - 2008 Ford F-150. Looking for recent topics? 2004 Ford F150 5.4 Triton 3V Vin5 Rough Idle Cylinder 3 Misfire. 1 post • Page 1 of 1. Wildboy402 New Member Posts: 1 Joined: Fri May 22, 2015 11:27 am ... 2004 Ford F150 5.4 Triton 3V Vin5 Rough Idle Cylinder 3 Misfire How this started, Drove through a lot of water as our City was in a flood ...A 4-cylinder car loses 25% of its power from a misfire while a the V10 Triton in a Ford heavy-duty truck, for example, only loses 10%. Regardless of what size engine …The claim was that sometimes Ford COPs failed in such a way as to cause electrical noise. This would cause a DIFFERENT cylinder to misfire. It might have been something along the lines of it caused another cylinder to fire early enough to screw it up when it got its actual trigger. Just something to think about.Maintenance Shop - Cylinder #5 and #8 misfire issues - Recommendations Please - Ford F-150 4x4 Supercrew FX4 Miles - 84,000 Engine: 5.4 Triton V8 So I was driving down the freeway and booked it in the fast lane going like 80mph to pass a semi. I then noticed that my engine was feeling/sounding like it was off tempo,...6 Fixes for Your Misfiring Truck. A misfiring engine robs you of power, and fuel economy, not to mention all the unburned hydrocarbons polluting the air. Check these simple things and be back running on all cylinders in no time. December 28, 2016. NEXT. BACK.There are many issues that can cause engine misfires on cylinder 8, resulting in a P0308 code. The most common cause of a P0308 trouble code is a faulty ignition coil or spark plug. Vacuum leaks or a faulty fuel injector are two other possible causes. Categories: OBD Codes.I have a 2005 f150 4.6L V-8. I recently had a misfire reading in cyclinder 8. I replaced the spark plug and there was oil on top and around the spark plug and boot. I cleaned it up, replaced the spark plug and it worked great for about an hour. Then it started misfiring again. I did the same process again and same result.Jul 1, 2020 · In this video we show you what to check when you have hard to diagnose misfires on this engine.These are the Parts and Kits I Recommend:2004-2014 Engines Lat...2009 - 2014 Ford F150 - 2011 F150 5.0 Random Cylinder misfire (PO300) - Purchased this truck back in September of 2018, 2011 Fx4 with 118k on the clock. After a week of owning, had to take it back to the dealer for the dreaded #8 cylinder failure. Dealer put in a new motor, free of charge, after 4 months waiting,...1997 - 2003 F150 - 03 F150 Misfire Cylinder 6 - 4.6 with 170k miles Last weekend I changed the fuel filter just for routine maintenance and the next day the check engine light comes on. Code is P0306 so I figured it would be an easy COP and plug change. Not so much. Now I've got a miss at idle and around 40-50mph....This 2005 Ford F-150 5.4L was running really rough at idle and while accelerating it was jerking and cutting out. Hooked up a scan tool and found code P0302 ...4 posts · Joined 2020. #1 · Jan 31, 2021. I have a 2013 3.5 Ecoboost. It started running rough last week. Ran a diagnostic and came back with PO304, Misfire on cylinder 4. I swapped the coils and still had a misfire on 4. Replaced all 6 plugs, tested the coil again, definitely getting spark Pulled all the MAP sensors and cleaned them.2007 - 2014 Expedition & Navigator - 5.4l cylinder 3 misfires - I keep getting random misfires on cylinder 3 on my 08 expy the misfires Lasts a couple of days then goes away no matter what I replace it always cylinder 3 and sometimes 4 joins in I can't figure what's going on but it's annoying has anyone else had this...I have a 2010 Ford F-150 truck with a 5.4L V-8 engine with about 130,000 miles. Recently, upon cold starts the engine ran very rough, missing, initially. After 3-4 minutes of warm up it seemed to be running normal. The engine light was always on when this occurred. Took it into the shop. Diagnosis was that cylinder # 8 was misfiring. They ...2009 - 2014 Ford F150 - Misfire and Compression Issues 2014 F150 5.0L - Hello, new to this forum and looking for some help and common issues on a 2014 F150 5.0L with 140k on the clock. My issue started with a Cyl #4 misfire and engine running rough. I replaced the plug and coil, cleared the codes but still misfiring....2004 - 2008 Ford F150 - Cylinder 5 Misfire, Have Tried Different Solutions, 5.4 3v - Good afternoon, I have a 2004 F150 FX4 with the 5.4 3v engine. Anyway I have a misfire on cylinder 5 as that is what my scanner tells me. A little backstory: I purchased this truck about a month ago. Everything was working fine, took...Second opinion] I have a 2006 f150 5.4 3v I got a misfire code on cylinder 4 so I replaced plugs and coil packs and injector. still misfire idles super rough and shudders bad when going up a hill or y ... I have a Ford F-150 4x4, with 191,465 miles, check engine light started flashing, then stopped. ...It has 52,000 miles on it. In September the check engine light popped and it stated the cylinder 8 was misfiring. We replaced the spark plug as it looked a little worn down. The code didn't go away. A mechanic came and looked at it. Cleared the engine code and swapped coil 7 and and coil 8 to make sure it didn't pop again and it wasn't the coils.Replacing a bad vacuum line may resolve the misfire or help the engine run better. 3. Disconnect the fuel injectors one at a time and look for a change. If you’re still having trouble finding the misfiring cylinder, …P0308 definition: Cylinder 8 misfire detecFeb 22, 2024 · 2009 - 2014 Ford F150 - 2011 F150 5.0 with the cylin Cylinder misfire. Hello! I am the happy owner of a 2017 Ford F-150 XLT 5.0L. Last weekend, during a weekend trip, the check engine light turned on, solid. It stayed on until I filled up the tank the next day, at which point it turned off. At no point while the light was on did I feel anything being off with the truck. 2004 F-150 Misfire. I need some help. I own a 2004 5 Oblong cylinders, I believe. It's a 2011fx4. The oblong cylinders were mainly 3 and 4. Try moving the cop on cylinder 8 with another cylinder and see if the misfire follows. If not then try moving plugs, then injectors. If none of those have an effect, try a compression test. There have been some that have had a cylinder 8 overheating issue ...If you are experiencing a Cylinder 8 Misfire Detected code on your vehicle, there are several common causes that could be the culprit. Here are a few possibilities to … Re: 2006 Ford F-150 5.4 ; Cylinder Misfiring. b

1997 - 2003 F150 - 1998 F150 4.6L misfire - Bought the truck about A year ago and have been trying to chase down a misfire issue as long as i've had it. At an idle the whole truck shakes, but runs fine while driving. It seems worse warm but it may just be because the idle is higher when its cold.Dec 21, 2014 · Received 2 Likes on 2 Posts. Solved: Misfire Problem. I had what seemed like a serious problem with my engine. I was having a terrible shutter at 45-55 MPH and under load. Then, I developed a rough idle. My truck is: 2006 F-150 XL, 5.4L engine. To save someone some time, the bottom line of the problem was a faulty brand new MotorCraft spark plug.19 Sept 2023 ... How to fix a Ford P0302 engine code: Cylinder 2 Misfire Detected Spark Inline Tester Tool: https://amzn.to/465UWj7 Possible Causes for a ...2009 - 2014 Ford F150 - 2014 5.0 misfire - Hello, i have a 2014 f150 5.0 that developed a misfire code for cylinder 8 about 3 months ago. At the time I swapped coils to see if the code changed. It stayed the same and I progressed to change the spark plugs next and the misfire code came back. I took it to 2 shops and...

Wife was hooning on her vehicle today and said the Check Engine light came on and was flashing. It went away when she slowed down and was gone when she came home. When she got home I scanned it and got Misfire Cylinder 1 code. 2016 Edge Sport 2.7TT. It is tuned with LMS 91 tune, has about 50,000 miles.Aug 28, 2011 · 1997 - 2003 Ford F150 - 1998 4.6L Cylinder 8 Misfire - Need Advice - I purchased a 1998 4.6L F150 with a 180,000 miles on it last week. I got a great deal on it, maybe too good looking back. The issue I am working on now is a code PO308 Cylinder 8 Misfire. The truck has not had proper maintenance that I could tell so...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Code P0308 Ford Description. Misfire is defined as a lack of combustio. Possible cause: Hope this helps. 2004 - 2008 Ford F150 - Faulty Temperature problems, misfire.