Received 137 Likes on 81 Posts. 2018 5.0 Misfires. Not 100% happy how my new V8 is running going down the road. And the silky smooth idle now has a brief slight roughness on occasion.No MIL illuminated. Took a short trip in it this morning, about 40 mi, and Torque Pro is showing random misfires in several cylinders.Cylinder 6 misfire. Those symptoms and codes are similar to an issue we had on our 6.0 with about 230k miles. Took it to dealer and they did several checks, including relative compression test and determined the injector needed to be replaced. Their recommendation was to do all injectors on that side.OBD II code - misfire on cylinder 8 1997-2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion Community Links2004 - 2008 F150 - 2006 ford f150 misfire/poor accelleration fixed - It seems alot of people are having the same problem I had which I have resolved. So I thought it would be a good idea to post this to possibly save people some money. Mine started out as a misfire problem which I first changed the plugs.My 2020 Ford F150 still has a cylinder misfire, despite me, changing the ignition coil and spark plug. I cleared all of the codes and drove it around and then I reread the codes in my BlueDriver and attached is the report. Show More. Show Less. Ask Your Own Car Question. Share this conversation.This article will therefore deal with code P0300 as it applies specifically to Ford vehicles. OBD II fault code P0300 is a generic trouble code that is defined as "Random/multiple cylinders - misfire detected" and is set when the PCM (Powertrain Control Module) detects misfires on random or multiple cylinders.Cylinder #8 Misfire Detected. What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. ... Stumped My father-in-law has a 97 Ford F-150 with the 4.6 VIN W (non-COP Ignition) engine with 188,000mi. on the body and 1000mi. on the engine. I recently rebuilt this ...Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. Quick links. FAQ; F150 Forum. Engine / Transmission / Drivetrain. Modular/Triton V8 Engines: 4.6L, 5.4L (97-10) Looking for recent topics? misfire cylinder #4. 17 posts • Page 1 of 1. juniorf250 Senior Member Posts: 283 Joined: Wed Apr 13, 2005 2:46 am ...Updated on February 8, 2022. The P0305 Ford F150 code demonstrates that cylinder number 5 is misfiring. When there isn't enough fuel combustion in a cylinder, it causes a misfire. Combustion of fuel is what offers the energy to produce power to the engine, so efficient energy combustion is critical to motor operation.I have a 2004 ford f150 5.4l (new body style) with 100k miles on it and it is misfiring in the number 1 cylinder when it is cold. As soon as the truck warms up, everything seems to be fine. This only started about two months ago and before that every thing ran fine. The computer is not throwing any codes so it is all about a ruff idle for the ...2013 f150 5.0 Misfire. So I've had a 2013 f150 for about 6 months now. It's always had a random misfire when idling and sometimes when driving on the interstate. On the interstate its bad enough that it feels like the transmission slips pretty bad for about a second or so. I've had the cold start update done and I'm about to check the spark ...2009 - 2014 Ford F150 - Cylinder 4 misfire and low compression - Hi everyone, happy to find such a great forum with a ton of knowledge and experience, Im hoping for some advice. Ive been mostly in the jeep world but recently delved into Ford trucks by picking up a 2014 F150 with the 5.0 for a really nice camping truck...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 ...2014 Ford F-150 with 5.0l. Misfire on cylinder 8 with 30psi on my compression test. I was doing some reading and it sounds to be a common problem with cylinder 8 on these 5.0 motors. Any input would be very helpful. Hi! Welcome to JustAnswer. Thank you for contacting us for assistance with your vehicle. I'm Ron.P0306 is a fairly common trouble code with the Ford F150.It’s and OBD2 code and stands for:. P0306 is certainly a cause for concern, and should be considered a threat to the drivability your F150. The nice thing about P0306 is that it’s a cylinder specific trouble code, which makes diagnosing the problems much more simple than P0300, …2015 - 2020 Ford F150 - 2017 F150 Misfire Problem - I have a 2017 F150 5.0L Roush Supercharger with 88K miles. ... It won't be the sixth cylinder that you might see when looking at the engine), and P0308 (same as P0306 but cylinder 8). I have changed all the spark plugs out with OEM and still getting P0300, P0306, and P0308. I slowly moved ...Decoding the P0302 Code: The P0302 code specifically indicates a misfire detected in cylinder 2. Modern vehicles employ advanced engine management systems that monitor individual cylinder performance. When the system detects combustion inconsistencies in cylinder 2, exceeding a predetermined threshold, it triggers the P0302 code.1997 - 2003 Ford F150 - Misfire On Cylinder #4 - Recently started having problems with my truck where the exhaust will start sputtering after driving around for a mile. Doesn't matter what speed it's at, the truck will start sounding like a chopper. Getting up to 50-55, it starts shaking.1997 - 2003 F150 - 1997 Ford F-150 4.2L V6 - Misfire in cylinder 2 - I have a misfire in cylinder 2, It is getting the 3 basics (Spark, Fuel, Air) it also had a lean code in bank 1 and 2 before this and developed into a misfire. The truck will bog down while hitting the gas sometimes. Idles fine. Any ideas (Common...P0307 definition: Cylinder 7 misfire detected. Issue Severity: SEVERE - Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine ...2004 - 2008 Ford F150 - Cylinder 7 misfire - 120k miles. Running rough - found a cyl. 7 misfire code. Bought a spark plug and ignition coil. When I pulled the coil I found that the plug cavity was semi-full of water. wtf kind of design is that? Vacuumed it out and blew it dry with compressed air, then drove it around...To diagnose the P0307 2002 Ford F150 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.2013 5.0L misfire. My 2013 F150 5.0L with 120K miles is frequently giving me a P0307 code. Occasionally I can go a few days without the check engine light coming on, at other times, it happens daily, and sometimes as much as 2 or 3 times in a day. I have tried replacing the spark plug, the ignition coil, and the fuel injector (all genuine Ford ...Hello Fellas! I have a misfire on cylinder #8 within the first 1000 revolutions on startup. I have replaced the spark plug in the past and the problem would go away for a few months. When the light would come back on I would replace the plug and get a few months with no check engine lights. I switched the coils around and the problem doesn't ...The wires were routed "correctly" on the drivers side (within logical reason). I thought about the 4/2 and 7/8 cylinder misfire so this morning I decided to try something. I re-routed the wires so than the #4 and #8 wires were as far away from the others as possible. I did not place them in the factory plug wire holders.2004 - 2008 F150 - 2004 Ford F150 5.4 Triton 3V Vin5 Rough Idle Cylinder 3 Misfire - 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 on my way home and and the truck started running rough and got worse over time, I can now barely...2009 - 2014 Ford F150 - Cylinder Misfire! 2011 5.0 F-150 - My 2011 5.0 has been misfiring. Codes, P0307, P0308, Cylinder (7 & 8). I replaced the spark plugs twice, replaced the ignition coils and the cables are fine. The cylinder does not have low compression either so I think it may be the fuel injectors but I'm not...29 Aug 2020 ... Just a quick video on how to i ran the gas out of the truck to the point where i developed a bad miss. Error Code P0303, here's how i ...2015 - 2020 Ford F150 - Misfire can’t diagnose - 2015 5.0 v8 - Only sign is misfire was check engine light. Never noticed anything different. Codes said random misfire, misfire cyl 4, misfire cyl 7 ( p300:00-28, p0304:00-28, p307:00-28) replaced cops and spark plugs with motor craft .The first thing to know is that you will get a code that will signify you have a cylinder 4 misfire problem. The code will be P0304. If the coil packs, plugs, or wires need to be replaced, check and test the ignition system components close to the cylinder. One of those three items is the issue. In that case, you must switch the coil pack, wire ...1997 - 2003 Ford F150 - misfire, which cylinder? - I have a 2000 f150 with the 4.6 v8. It has a misfire which I think is the cop. I was told that some obd scanners can read the misfire and let me know which cylinder it is. I bought the autel 539. went to onboad monitor-test 53 which counts the misfires. Didn't work!...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...I have a 2013 F150 XL v8 5.0 and am getting a misfire code on cylinder #8 (random, not consistent). I have read several posts about similar issues and am trying to narrow down the possibilities. I have checked all the spark plugs, which are in good shape, and replaced #8 with no change. I just did a compression test and cylinders 1 through 6 ...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...Received 14 Likes on 13 Posts. 2013 Ford F-150 3.7 V6 Engine Misfire. Back in August I was on a road trip from MN-CO towing my 22ft 5,000lbs airstream headed west on I80 in Nebraska. When suddenly my engine light starts flashing going up hill at maybe 2,500 RPMs, and i am out in the sticks with no pull off in sight so i keep driving because 1m ...Dec 22, 2013 · swhite005. 1997 - 2003 F150. 6. 12-19-2005 07:42 AM. 1999 to 2016 Super Duty - Engine misfire cylinder 5 and now 7/8 - Alright so I had the worst luck these passed couple days, truck started running like crap 3 weeks ago (misfiring), long story short FINALLY got the p305 code, So I popped on a coil pack on cylinder 5, but when I took the coil ...The 1957-1958 Ford Ranchero and Courier pickups were pioneering designs. See pictures and learn about the 1957-1958 Ford Ranchero and Courier. Advertisement The 1957-1958 Ford Ranc...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...A misfire is just what it sounds like; a cylinder that is not firing as it should. The P0308 code is caused by a misfire on the number eight cylinder. The Misfire monitor diagnostic is based on variation in crankshaft velocity. The PCM determines this information using the crankshaft position sensor and camshaft position sensor.03:18 PM. 09:39 PM. 11:51 AM. 1997 - 2003 F150 - Misfire Cylinder # 3 Diagnosis - Changed coil and spark plug on cylinder # 3 on the 10th Gen F150. A closer look at the Coil and Spark plug resulted in the coil appearing to have moisture accumulation on it. The tech air dried the spark plug hole and moisture appeared to emit.2014 5.0 Misfire issue Please Help. Milage lowering getting worse indicates a rich air fuel mixture more than normal. The O2 sensors control mixture, the upstream one that is. The system is trying to compensate for poor ignition but you have all new parts. If ignition is ok and fuel is ok, that leaves airflow.2004 F-150 Misfire. I need some help. I own a 2004 5.4L 3V with 119,000 miles that has developed a mis in cylinder 1. The miss is only intermitent and only at idle while in drive, always at a red light. The pending code is P0351. After I got the code the first time, I changed the COP. A week later the mis came back.There are quite a few things that can cause the P0308 trouble code to trigger the Ford F150. Here are the most common problems that may cause it. They are presented somewhat in order from most to least likely to be causing the code: 1. Bad Spark Plugs– Spark plugs are one of the most common causes … See moreMaintenance Shop - Cylinder 8 Misfire and dealership issues - Been having some major issues with the Ford dealership. Long story short they have give me my truck back "fixed" 4 times now. 1. went to get wheel bearings replaced and vacuum hub checked. They gave it back with only 1 bearing replaced (forgot to check the...1.6K. 207K views 5 years ago #checkenginelight #FIXD #P0308. The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can …check engine light still on today but no vibrations. I went to autozone and got reading for cylinder misfire 1,6, & 8 now. What do you think this could be? Autozone …1997 - 2003 Ford F150 - misfire on cylinder 8 and running lean on bank 2 - I have a 98 f150 4.6l xlt. 157k miles. It is idling really rough. Rpm's drop down to bout 500 at idle, bogging down, and not wanting to shift into high gear. Code says misfire on cylinder 8 and running lean on bank 2. I just replaced all 8...Re: 4.2L V6 Misfire Mystery. by F150Phule » Fri Oct 21, 2011 5:12 am. What brand of plugs did you install. Bosch plugs don't seem to work well with these motors 99.9% of the time. Not sure why but these motors are finicky when it comes to plugs. Stick with Motorcraft, Autolits or Denso iridium plugs. I put in a set of Bosch a few years ago ...Code P0307 Ford Description. Misfire is defined as a lack of combustion in a cylinder due to the absence of a spark, incorrect fuel metering, low compression, or any other cause. When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the Engine ...1 / 1. 1999 to 2016 Super Duty - 1999 F350 V10 misfire big problem - This all started about 1 year ago running really bad took it to ford said a coil was bad replaced it ran great now it only has 75K miles on it ok. This year started to run like crap again took it to ford said 2 coils were bad replaced them ran ok.Fuel Delivery Problems: A clogged fuel injector or weak fuel pump may result in insufficient fuel reaching the cylinders. This imbalance disrupts the combustion process and leads to misfires across multiple cylinders. 3. Air/Fuel Mixture Imbalance: An improper ratio of air to fuel can cause misfires as well.1997 - 2003 F150 - cyclinder #3 misfire on 97 f150 4.6 4x4 - Ok, i have a 97 f150 4x4 with the 4.6 in it. I was running the truck at about 60 mph the other night and all of a sudden my check engine light came on and the truck started to chug.I can kick it in the rear and sometimes it feels like all the powers there...Ford F150 P0308 Missfire CodeThis is a 2010 with a 5.4L engine. You Never know what you are going to find until you take it apart.I do beleve that it had the...A clogged converter can cause all manner of problems, and a quick way to diagnose is to run the engine without an upstream oxygen sensor. 2009 - 2014 F150 - 2011 f150 3.7 misfire - 2011 f150 with 144000 miles. V6 3.7 bought the truck with number 3 coil,pack no firing. Replaced coil pack and plugs.now right hand side all cylinders are not firing ...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 consider: Faulty spark plug: A faulty spark plug is one of the most common causes of a misfire.6 Cylinder Engines - 1992 F-150 Top End Misfire - I am a little new to posting on forums, I hope I am doing this right. I recently did a tune up. I replaced the following items: Spark Plugs Spark Plug wires Distributor Cap and button Oil and filter (10-W30) Rear Fuel pump Belt tensionor pulley Before I did the...Maintenance Shop - 2014 5.0L throwing misfire and air-fuel imbalance codes - I recently bought a 2014 XLT 5.0L, Supercrew, and 4x4. 110,000 miles. It's a beautiful truck and really looks like someone took great care of it. Just a few days after purchase the CEL comes on. After driving the first and second day, i...While swapping coils around make sure you do not have water down in the spark plug area. This may be just a water issue. Maintenance Shop - Multiple Cylinder Misfire - Gave the truck some gas on a wet road and the tires were spinning. The check engine light immediately started flashing and felt the truck real sluggish.When I got home I hooked up my scan tool and it said, Cylinder 1 misfire. I replaced the coil pack and the spark plug. ... F150Ecoboost.net is the best Ford F150 Ecoboost Forum with discussions on 2011+ F150 Ecoboost Trucks. Discuss performance mods, towing questions, wheels, tires, lift kits, and much more!I don't have the exact codes but they all were the same for cylinders 4,6,7,8, the code said possible problems for the misfire was bad coil, bad spark plug, bad injector, or bad pcm. so far I have replaced the following. 1. all 8 coils with accel super coils. 2. all 8 spark plugs with motorcraft platinum plugs.The time now is 02:21 AM. 2015 - 2020 Ford F150 - 2016 5.0 Mystery Misfires - Hello f150forum members... Hoping to get some ideas on the following, but first here is the quick history of my f150, that is turning out to be a real pain in the *****. It is a 2016 XLT, 5.0 screw. At about 5000km (about 3100 miles) the entire engine (long block)...Jan 3, 2016 · If you're in one of these situations, luckily Ford vehicles with OBD-II have a special cylinder-specific misfire count available inside part of the OBD-II specification called mode $06. Modes are just different sections of the OBD-II specification (SAE J1979) that deal with different functions.by williamscl5 » Tue Jul 29, 2008 5:37 pm. Yes, all the injectors are the same just like the plugs are. No reason you can't swap the injectors but I would make sure that the plug on #6 is firing first. You need to vent the fuel rail pressure before removing the rail. After that, the injectors just pop in and out.The first thing to know is that you will get a code that will signify you have a cylinder 4 misfire problem. The code will be P0304. If the coil packs, plugs, or wires need to be replaced, check and test the ignition system components close to the cylinder. One of those three items is the issue. In that case, you must switch the coil pack, wire ...2019 F150 5.0 Misfire. Hey guys, any help would be nice. I have 2019 f150 27000 miles. I have true dual exhaust with cold air intake on a 3 inch lift with 35 inch tires. At one point i was have a fuel to air ratio code being thrown. Ford told me i had to take all my aftermarket parts off and put stock back on.1997 - 2003 Ford F150 - 1998 f150 4.6 liter hesitating and misfiring - i need help, please. i have a 98 ford f150 xlt xtended cab 4x4. has a triton 4.6 liter v8 with 129,000 miles. for last month or so, it has been running rough when first started. engine hesitates at idle and then really hesitates when first...One of the most common codes associated with a misfire is the P0306 code, which indicates a misfire in cylinder 6. This code can be triggered by a variety of issues, including faulty spark plugs or ignition coils, low fuel pressure, or a vacuum leak. To troubleshoot the P0306 code, it's important to understand how a cylinder misfire occurs.I have a 2017 F150 5.0L Roush Supercharger with 88K miles. Problem started with the Driver side cat giving me a P0430 code. After about a month I was able to replace the driver side cat and about a week later replaced the passinger side cat. Best to do both. I am getting a P0300 ( Code P0300 stands for “Random or Multiple Cylinder …Cylinder 8 Misfire Detected. What the P0308 code means. The P0308 trouble code means that the powertrain control module (PCM) has detected an issue with the ignition of the …Changed coil (with an aftermarket) and it fixed the problem. 102000 miles. Cylinder 1, 2 misfire. Changed all the plugs (motorcraft), not just 1 and 2, found cracks in 1 and 2. Fixed the problem. 106000 miles. Cylinder 4 misfire. Checked the plug, changed the plug, drilled weep-hole, lowered gap to .030.6 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.Ran a scan and it said cylinders 5,6,7,8 misfiring. Also said code P0022 timing over retarded in Bank 2. Also had codes for 02 Sensor, Running rich Bank 2 Running Lean bank 1. So my common sense side decided I would try to rule out a few things. I tried Swapping a coil pack from Bank one and still got the same codes for cylinders 5678.Sep 13, 2018 · It’s a generic code (same meaning for all vehicles) that indicates that your truck’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your F150’s check engine light to flash, avoid driving your truck altogether until you find the misfire and repair your engine.2004 - 2008 Ford F150 - Cylinder 5 Misfire, Have Tried Different Solutions, 5.4 3v - Good Morning everyone, I have a 2004 FX4 with the 5.4L 3 valve. It has a Cylinder 5 misfire (Code P0305). Here's the story: Bought it off a dealer a month ago. Drove it to Riverside and back into the Central Valley with no major...All times are GMT -4. The time now is . 2009 - 2014 Ford F150 - Cylinder misfire code on 2013 5.0 - I have a cylinder misfire code on cylinder 4. I've changed the coil pack as well as the spark plug. still showing misfire cylinder 4. I switched the coil from #3 to #4 and cleared it and now it still shows a misfire #4 cylinder.Dec 15, 2008 · 1997 - 2003 Ford F150 - Cylinder 1, 3, & 8 misfire (Please Help) - Okay, thanks to ebxgsxr I purchased a code reader on eBay to help me figure out why my truck still has a miss. It was easy to use but the codes I received from it are troubling me. I got: P0301 - Cylinder 1 Misfire Detected P0303 - Cylinder 3 Misfire...If you're in one of these situations, luckily Ford vehicles with OBD-II have a special cylinder-specific misfire count available inside part of the OBD-II specification called mode $06. Modes are just different sections of the OBD-II specification (SAE J1979) that deal with different functions.1997 - 2003 Ford F150 - Cylinder 1, 3, & 8 misfire (Please Help) - Okay, thanks to ebxgsxr I purchased a code reader on eBay to help me figure out why my truck still has a miss. It was easy to use but the codes I received from it are troubling me. I got: P0301 - Cylinder 1 Misfire Detected P0303 - Cylinder 3 Misfire...2002 5.4 L f150. Getting a misfire in a cyl. Code says Cyl 1. Run truck and disconnect/reconnect coil connectors 1 at a time just to make sure it's right. It is. It's due for new plugs anyway, so I replace all plugs. still misfiring. Replace all coils because I have extras laying around, still misfire. so I replace the injector for cyl 1 because I don't have extras and injectors are ...Re: 2001 f150 5.4 misfire. by pricerf150 » Thu Sep 25, 2014 1:31 am. I'd say pull the fuel filter and then turn the key and pump out as much fuel as you can from the tank (after relieving the pressure)Then dump in some new gas ans see if it helps. dusty3030. New Member.P0308 is a diagnostic trouble code (DTC) for "Cylinder 8 Misfire Detected". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 .To diagnose the P0307 2002 Ford F150 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.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...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.This article will therefore deal with code P0300 as it applies specifically to Ford vehicles. OBD II fault code P0300 is a generic trouble code that is defined as "Random/multiple cylinders - misfire detected" and is set when the PCM (Powertrain Control Module) detects misfires on random or multiple cylinders.codes that came up. i borrowed a code retriever and the codes were. 1) P0022 camshaft postion acttuator A Bank 2 timing over -retard. 2)P0171 Bank 1 system too lean. 3)P0300 random/multiple cylinder misfire. 4)P0305 cylinder 5 misfire. 5)P0306 cyl 6 misfire. 6)P0307 cyl 7 misfire. 7)P0308 cyl 8 misfire.The P0307 code stands for "Cylinder #7 Misfire Detected," which means there's an incomplete combustion happening inside cylinder #7, causing it to misfire. ... Code P0307 may appear on some Ford vehicles. On a 2013 Ford F-150 XL 5.0L V8, for example, the code appears because of the following conditions: Issues with the ignition system;Changed coil (with an aftermarket) and it fixed the problem. 102000 miles. Cylinder 1, 2 misfire. Changed all the plugs (motorcraft), not just 1 and 2, found cracks in 1 and 2. Fixed the problem. 106000 miles. Cylinder 4 misfire. Checked the plug, changed the plug, drilled weep-hole, lowered gap to .030.How to fix a Ford P0304 Code: Cylinder 4 Misfire DetectedSpark Inline Tester Tool https://amzn.to/465UWj7Possible Causes of a Ford P0304 Code: ⦁ Bad Spark Pl...I too have the problem although with cylinder #3 on an '97 F-150 4.6L V8. I have changed the plugs so far, cleared the engine light and it remained off for a week and is now lighted again. Haven't taken it anywhere but to Autozone to read the code and clear the light. Any ideas? When started it sounds hard like the engine misses and then idles ...05-28-2008 03:21 PM. Reply. /. 5.0L Coyote - Hi all, 5.0 misfire problems - Have a 2014 F150, has developed a misfire on bank one (P0300). Took to dealership, was told to change plugs. I did but did not help. Another ford mechanic said to change injectors, that didn't help either.2004 - 2008 F150 - 2006 ford f150 misfire/poor accelleration fixed - It seems alot of people are having the same problem I had which I have resolved. So I thought it would be a good idea to post this to possibly save people some money. Mine started out as a misfire problem which I first changed the plugs.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.... 1987 - 1996 F150 & Larger F-Series Trucks 1987 - 19The #8 cylinder sets under one of the air conditionin 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 ... 14 Apr 2021 ... My Ford Flex 3.5L V6 had a chec 8 Cylinder Engines - Ford F150 - 2003 4.6L runs rough; code says cylinder #8 misfire - About a week ago my F-150 4.6L began to skip and run rough. It shakes a lot when it's doing this, but the problem is intermittent. Sometimes it does it a lot, then other times it seems to run on all cylinders. Unfortunately I cannot... 2004 - 2008 Ford F150 - Cylinder Misfire After Plug R...
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