I had a misfire on my 5.0 mustang GT that ended up being the crank position sensor. It's probably the piston. Some of the early 5.0s (2011 & 12) had issues with the piston failing in #8. This was mainly attributed to overly aggressive aftermarket tunes.Primary causes of engine cylinder misfires include loss of compression, an unbalanced air or fuel ratio, a loss of spark and a malfunctioning fuel injector. The misfire occurs as a...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 follow the coil.2. 06-26-2006 08:08 PM. Reply. /. 2004 - 2008 F150 - 2008 cylinder 7 misfire question - So had a misfire 200k on truck.. did spark plugs still had misfire mainly cylinder 7 it was cheaper to buy 8 new coils than just ones from auto zone Than just one so replaced all of them no misfires for like 2 weeks.1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks. Sponsored by: Misfire under load. Problem Solved. ... I thought about the 4/2 and 7/8 cylinder misfire so this morning I decided to try something.If you’re in the market for a used Ford F150, it’s important to know what to look for when searching for one near you. The Ford F150 is one of the most popular pickup trucks on the...Jan 30, 2020 · P0307 is a fairly common trouble code with the Ford F150. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders. So, it’s mostly a code for V8 engines. P0307 is typically caused by bad spark plugs, plug wires ...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 …Dec 6, 2010 · 1997 - 2003 Ford F150 - 5.4 Missfire in cylinder 7 Need help! - Hey guys i have a 2002 f150 with the 5.4 with a misfire in cylinder 7 i changed the plug, the coil pack and injector and its still misfiring I dont know what to do. It idles rough and has no balls when i accelerate. My check engine light flashes.I have a problem with #8 cylinder misfire, which is constant. I have occasional misfires on #5, #6, and #7 cylinders. I cleared the codes and did a spark test on #8. I checked for codes. None. I then drove the truck and it ran normal. After about a mile the check engine light came back on. 5,6,7,8 showed misfire.Causes and Methods to Fix Multiple Cylinder Misfire on Ford F150. The worst condition of exhaust and converters. Faulty plugs. Worst pressure condition in the cylinder. Dirty filters/Fuel filter clogging. Damaged injecting tools. Faulty coils and broken electric wires. Leakage and excessive fuel burn. Low quality of the fuel in Ford F150 cylinders.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...That's ODD. General F150 Discussion - 2018 2.7 ecoboost misfire - my 2018 XLT 2.7 ecoboost started to shake and the engine light came on. when i took it to the dealership on my home today, they did a scan. they told me cylinders 1,2,3 were reading a misfire. the engine only has 2800 klms on the engine. they will call me tomorrow...Dec 28, 2016 · 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.P2187 = "system too lean at idle, bank 1". The problem is in the bank of cylinders that includes cylinder 1. Running too lean at idle can often be caused by an air leak between the mass air flow sensor and the throttle body, a leaky intake manifold gasket, or some other vacuum leak. "False air" is downstream of the MAF sensor so it is not measured.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.by damien.pelletier » Tue Aug 02, 2011 1:39 am. 2007 F150 4.6L 75000km/46600mi. Started my truck up and drove about 5 minutes, engine sounded rough and check engine light came on. I'm getting code P0307 and P0316 (cylinder 7 misfire). I read on the forums that a misfire could be the COP or the spark plug.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 ...1987 - 1996 F150 & Larger F-Series Trucks - 1996 F150 misfire??? - On my 1996 F150 I get the code P0305, cylinder 5 misfire. I changed the plug and wire. The code came back again tonight. The truck shakes a little bit at idle sometimes , thats the only thing that is not perfect.Autozone code reader says misfire cylinder 3.. possibly coil - Ford 2005 F-150 question. Search Fixya. Browse Categories Answer Questions . 2005 Ford F-150; Ford F-150 Car and Truck ... P0300 is multiple cylinder misfire, meaning a engine miss is detected on more then 1 cylinder, I would have the codes scanned at auto part store to know for ...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 Misfire ...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.2021+ Ford F150 - 2021 Misfire Fault - 2021 F150 with the 3.5 eco boost At 480 miles my truck started misfiring, resulting in being taken to the dealer multiple times in a week. the result was a coil pack. The coil pack was backordered so the dealer took one off of another truck on their lot.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 Misfire ...Hope this helps. 2004 - 2008 Ford F150 - Faulty Temperature problems, misfire - 2007 f150 5.4. Since winter started I’ve had 4 “reduced engine power” messages (on different days), the temp gauge pegs to hot, but the truck is NOT overheating. The coolant is fine. If I turn off the turn and crank it back up it goes away and the truck...Re: 1998 F150 4.6L Cylinder 8 Misfire - Need advice. by ArcherDude » Sun Aug 28, 2011 8:49 pm. I would pull number 8 plug again and see if it has more black gunk on it. If it has Black gunk on it then it could be a bad valve seal. This would allow oil to run into the cylinder and put black gunk on the plug.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.Once the oil has been changed in a Ford F150, if the oil change indicator light on the dash does not reset on its own, then the light should be manually turned off by resetting the...Received 4 Likes on 2 Posts. Misfire 1995 f150 351w. Ive posted a couple of times on this issue and im (almost) completely stumped at this point, ill lay everything out for you. Its have a consistent misfire/buck while accelerating, Speed doesn't variate it, and it will happen lightly at an idle. Gas mileage is better with new injectors and ...Modular V8 (4.6L, 5.4L) - f150 Nightmare Misfire's in Cylinder 7 and 8 with backfire in engine - Iv never created a forum page before, but I am having a nightmare issue with my 2005 f150 5.4l. It has a rough idle, I am reading alot of misfires on cylinders 7 and 8. Weird If I give it alot of gas I have no low end...1997 - 2003 F150 - #8 cylinder misfire, can't figure it out. - Ok, long story, but i want to give you all the info. I have a '99 150 with a triton 5.4 appx 130k miles. About a year ago i had the #4 COP go out so i changed it and all the plugs at the same time. My dad was driving it about 2 weeks ago and it blew out...5.4 misfire cylinder 2. I searched but was unable to find solution so forgive me if this has been covered before. 1999 f-150 5.4 212k miles. Earlier this year I changed all COP's and plugs. I am now getting misfire in cylinder 2. This problem has been intermittent and seems to be a little worse when the truck is cold.1- Checkand consider replacing spark plug wire that one is very close to the heat wrap on the ac line i believe it is from memory. 2-You can check for vacume leaks that willeffect the air/fuelmixture and can throw the codeP0302 also. 3- You have both cam and crank sensors start with the cam its easiest, then crank.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.Check the wiring and connections in cylinder 8 and repair or replace them if necessary. Check the compression: Low compression in cylinder 8 can also cause a misfire. Check the compression in cylinder 8 and repair the engine if necessary. By following these steps, you can repair a cylinder 8 misfire and prevent further damage to your vehicle ...2015 - 2020 Ford F150 - 2016, 5.0 Random Misfire All Cyls - Graphs - This is a compilation of other threads regarding intermittent random, non CEL misfires. 5.0 - 175K, runs great, good gas mileage, smooth idle, lot's of power, fairly quiet. Let me know if further info needed. New plugs swapped locations, COP swapped...I have a 2004, 5.4 3v and recently replaced plugs (E3's) at 75,000 miles. After the plug change, CEL began blinking when accelerating, especially on the highway. Finally the CEL stayed on, truck ran rough and I had the code checked. Scan said multiple misfires and misfire on #6 and #8 cylinders.by code58 » Sat Jun 06, 2009 6:13 am. jakerod256 wrote: Greetings, My 2004 F150 5.4L (90,000 miles) misfires when moving from coasting or decelerating to accelerating. The misfiring continues until the auto transmission downshifts to lighten the engine load. This occurs at all speeds as long as the transmission is in highest gear with OD engaged.I have a similar set of circumstances as WMD. 97 4x4 with 4.6 engine, 125000 miles. Plugs and wires changed at about 100k. Vehicle has similar shuddering issues as he describes, but with a couple of other issues. If the truck is parked on level ground or on a hill nose up, the vehicle misfires strongly on startup for about 30 seconds …1997 - 2003 Ford F150 - Misfire on cyl 8 - Truck is a 97 f150 4.6 vin W. Ok guys, a little back story. The truck would misfire on cyl 8 about a month or so ago and I found the new plug wire was out. Checked and made sure the plug was tight, it was. Hm, must've not put it on right.2009 - 2014 Ford F150 - Cylinder 6 misfire on 2013 f150 - I have had the code read a few times in the last year that states my cylinder 6 misfires.(v6 F-150 as well) I’ve replaced the coil and the spark plug and I still get the code. The truck will run fine until I had to have to speed up to merge onto the the...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 ...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 ...TRUCK MISFIRES, NEW IGNITION COILS AND SPARK PLUGS STILL MISFIRES FORD F150 F250 F-150 F-250In this video we will explain how to fix misfire on Ford F150 or ...Feb 7, 2016 · 1997 - 2003 F150 - 2001 F-150, 5.4 cylinder 8 misfire help - So a few days ago, I have a cylinder misfire on my 5.4. I get it to my buddy's place, he hooks up his code reader, and it's cylinder #8. We run to the parts store, grab another coil pack, swap it out, and we're still getting the same code for a misfire. He...Apr 8, 2022 · 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...1997 - 2003 Ford F150 - 98 4.6 cylinder #6 intermittingly misfires. - This has been an ongoing trouble for me over the last 4 months. Running under a load just below 2k RPM's it just start missing. Also at idle in gear with break on. I rarely get a check engine light.1997 - 2003 Ford F150 - 5.4 Missfire in cylinder 7 Need help! - Hey guys i have a 2002 f150 with the 5.4 with a misfire in cylinder 7 i changed the plug, the coil pack and injector and its still misfiring I dont know what to do. It idles rough and has no balls when i accelerate. My check engine light flashes.FRF Addict. Hey I installed a roush supercharger and I am getting a cylinder 8 misfire code. The truck misfires when it is under load about 60% throttle id say. It doesn't misfire at Idle or light cruise. I replace coil pack, spark plugs, and all the wires look in good shape. Everyone I've talked to said it is highly unlikely an injector issue.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...8 Cylinder Engines - Misfire- Possibly PCM? - I have a miss on cylinder 1. I am getting code P0351- ignition coil a Primary/Secondary circuit malfunction. ... Women might not find ya handsome, but they'll find ya in your F150 Ford Built_Ford Tough Last edited by papa tiger; 02-11-2012 at 01:07 AM. Reply Like 02-10-2012, 12:45 PM # ...1997 - 2003 Ford F150 - P0304 Misfire (Don't know what more to do) - I have a question in regards to a 1997 Ford F-150 (f150) V8 4.6L with misfire code P0304. ... (P0304; misfire cylinder 4). So, I picked up an injector; but before installing, I swapped the old 3 and 4 injectors with the old 1 and 2- and vice versa. Drove for 20 miles and the ...Code P0308 2003 Ford F150 Tech Notes. The P0308 code means that cylinder #8 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #8. If the problem persists more tests need to be done to diagnose the problem.Ford F150 owners who see the P0305 code should take it seriously. P0305 is a cylinder misfire code. This means that there is a problem with the firing of the cylinder in question. The P0305 code specifically refers to cylinder number five. When this code is thrown, it means that the computer has detected a misfire in cylinder five.I have a 2008 F-150 5.4L V8 with 295000km. First the truck started shaking and losing power at about 100km/hr, I got a P0304 cyliner #4 misfire code. I switch the coils between #2 and #4 cylinders to see if the problem would follow, And it did so replaced the coil on cylinder #2. Then, the truck starting shaking again and the code reader told ...When the PCM sees that the voltage from cylinder 6 is outside the normal operating range, this code will be stored in its memory. P0206 is usually caused by a bad fuel injector or a wiring issue. If the misfire were in cylinder 5, you'd get P0205. P0206 is usually caused by a bad fuel injector or wiring issue. P0206 Symptoms: Ford F1502004 - 2008 Ford F150 - 2007 F-150 5.4 misfire - Need help! I have replaced plugs, coils and even the coil plug wire connector on my 5.4 engine. Still getting a misfire and running rough. Code reader says misfire on cylinder 8. What else can I check to fix it? Update: Thanks for all the tips guys. I ended up having a...#6 Cylinder (Misfire) 2005 F150 King Ranch Super Crew. Top. bcbfx4 Regular Member Posts: 37 Joined: Tue Oct 03, 2006 11:02 am Location: Panama City, FL. Re: 05 5.4 L Misfire Cylinder 6. Post by bcbfx4 » Fri Dec 03, 2010 12:18 am. ... Return to "2004 - 2008 Ford F-150" ...The fault can cause the engine's cylinder head to crack, which in extreme circumstances could lead to a fire. Ford has been aware of the issue on the 1.6-litre EcoBoost since 2012, after several ...Cylinder 1 misfire. When I got home, I ran to the dealer and got new SP578 plugs and gapped them to 0.030. Same issue. Moved coil pack around. Same issue. Pulled the plug and put an old plug in from another cylinder. Also put the new cyl. 1 plug in a different cylinder. Same issue. The spark plugs from cyl 1 is wet when pulled out and smells ...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 ...17 Jan 2023 ... 2010 Ford f150 5.4l misfires bank2 cylinder 5,6,7,8 is my mystery. 2.9K views · 1 year ago ...more. All Tsab. 29.5K.That includes adding dielectric grease. Thank you sir. 2004 - 2008 Ford F150 - 2008 F150 4.6 misfire - My truck started misfiring shortly after i got it. It had 167000 miles on it. I replaced the plugs with motorcraft plugs and replaced all the coils. 1000 miles later it started to misfire and the check engine light came on, #5 misfire and a ...1997 - 2003 Ford F150 - 1998 4.6 misfire - Before I start, just did a tuneup so I have new plugs and wires...have a misfire coming from cylinder 4. It's been a week since tuneup. I replaced coil pack and didn't help. I've noticed that when the truck is first started it doesn't misfire until it has warmed up to normal...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.2015 - 2020 Ford F150 - 2016, 5.0 Random Misfire All Cyls - Graphs - This is a compilation of other threads regarding intermittent random, non CEL misfires. 5.0 - 175K, runs great, good gas mileage, smooth idle, lot's of power, fairly quiet. Let me know if further info needed. New plugs swapped locations, COP swapped...2009 - 2014 Ford F150 - 2014 5.0L P0300 Random/Multiple Cylinder Misfire and Catalytic Converter Codes - I just purchased a 2014 XLT that is throwing 7 CELs. I can sometimes feel a slightly rough idle (you can sometimes feel misfires in the seat), but otherwise the truck runs great. The CELs are: P0300 -...Received 18 Likes on 15 Posts. 2003 Misfire. Good afternoon all! I am working on a 2003 F150 with the 5.4l. I own a F150 with the same motor, so when the owner of the truck i am working on said he needed help I figured it would be a breeze since I know this motor fairly well. Well, the truck I am working on has me scratching my head.Joined: Sat Mar 22, 2008 2:12 pm. Truck: 2015 F150 FX4 5L. Location: Illinois. by kt1148 » Fri Jun 06, 2008 2:12 am. My 01' has the COP system (no wires) and did the same thing. Replaced spark plugs about two months prior. Misfire was on cylinder 6. Installed new coil and spark plug. Took care of the problem.2009 - 2014 Ford F150 - 2014 5.0L P0300 Random/Multiple Cylinder Misfire and Catalytic Converter Codes - I just purchased a 2014 XLT that is throwing 7 CELs. I can sometimes feel a slightly rough idle (you can sometimes feel misfires in the seat), but otherwise the truck runs great. The CELs are: P0300 -...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.Vacuum Leaks . A vacuum leak can cause a rough idle, misfire, and poor fuel economy. It is time to check if you have a vacuum leak. The most common leak is on 00-03 duratec and 01-03 vulcan motors where the PCV hose connects to the intake manifold with the PCV elbow.. These elbows become oil soaked and collapse, creating a leak.This is the first Ford I have ever owned or worked on as I mainly work on Chevy's and Pontiacs. Anthony. 1996 f150 xlt 5.0 4x4 133,000 miles, ebony with grey cloth interior. Extended cab, tow package - stock suspension. Dual tanks, automatic trans and manual lock outs.They should have been able to tell you which cylinder, they just felt that they could be help liable. Either way - it's probably #3. I've heard others mention that puddles, deep water, etc splashing up and getting into #3 and causing misfire issues.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...P0302 in the Ford F150 is a common OBD II trouble code. It indicates that your truck’s second cylinder has a misfire. P0302 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 come on, you shouldn’t drive your truck at all. Repairing P0302 should be considered ...Could be that both sides of the manifold's imrc are borkt. I was one such 5.0 owner who had this driveability issue at 35,000 and it was cured with a manifold replacement. Maintenance Shop - 2016 f150 5.0 multiple cyl missfire , no cel - First post , after lots of reading and researching , i decided to to make a post to see if any of the ...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...P0301 definition: Cylinder 1 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 misfire can be caused by anything from faulty spark plugs to low engine compression.There are many issues that can cause engine misfires on cylinder 4, resulting in a P0304 code. The most common cause of a P0304 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.P0305 is a fairly common trouble code with the Ford F150.It's and OBD2 code and stands for:. P0305: Misfire Detected → Cylinder 5. P0305 is certainly a cause for concern, and should be considered a threat to the drivability your F150. The nice thing about P0305 is that it's a cylinder specific trouble code, which makes diagnosing the problems simpler than P0300, which means that the ...I have a 2006 5.4 liter triton on my f-150. I have a misfire in cylinder 5 fault. I have replaced all 8 plugs and have put a new ignition coil on that cylinder and fault still comes when accelerating … read moreFord Galaxy (00-06) X to 06 Mark Storey,2012 Ford Galaxy models with 4-cylinder petrol and diesel engines. Petrol: 2.3 ... Does not cover 2.8 litre V6 engine. 1998 Ford F-150, F-250 Electrical and Vacuum Troubleshooting Manual Ford Motor Company,2023-10 This 1998 Ford F-150, F-250 Electrical and Vacuum Troubleshooting Manual is a high-quality ...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...Start by inspecting coil/boot/spring. Clean boot/spring, and check/inspect the connection of spring to coil. Clear codes, test. If persists, replace boot/sprint OR swap 4 coil assembly with 5, clear codes, test. if misfire went to 5 it was coil. If not, pull and swap 4 and 5 plugs, clear codes and test.Jun 21, 2021 · 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...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.. 2014 Ford F-150 with 5.0l. Misfire on cylinder 8 with 30Misfire at idle. 13 f150 5.0. Constant c The time now is . 4.6L 2V - 4.6L 2V Misfire With No Code PLZ HELP - Hello and thank you for reading this post. Last month i bout a 2002 f150 stepside for a good deal. Well turns out im getting the brunt end of that deal. Ever since i bought the truck i have noticed a slight shuddering under light acceleration between 1400 and 2000 rpm....All times are GMT -4. The time now is . 2009 - 2014 Ford F150 - Replaced plug and coil-still misfiring-more issues - Hello all, Just replaced all the plugs on my 2012 FX4 5.0L. (76,xxx miles) Carbon build up on every plug. The local dealership specifically told me number 7 cylinder had been misfiring. Diagnostic trouble code (DTC) P0308 stands for “Cyli Originally Posted by pnelson561. Hello to all, I have a 2012 ford f150 5.0L flex fuel with 100xxx miles on it. I swapped the spark plugs, coil packs, check all the electrical, ran a compression test, and pulled O2 sensor and still misfires intensely at idle. When the engines accelerating the cylinder performs (as seen on the computer). Modular V8 (4.6L, 5.4L) - 2006 5.4 Lariat Cylin...
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