9 Dec 2022 ... 2007 F150 5.4 running rough. Had a P0305 cylinder 5 misfire code. Checking the misfire data showed cylinder 5 as the only cylinder that's ...2015 - 2020 Ford F150 - 2018 5.0L Misfire on cylinder 1,6, & 8 - Hey guys i was leaving work yesterday and jumped on the highway. Truck started vibrating while driving. Vibrations when accelerating. I stopped at auto zone and reading said misfire on cylinder 1 and 6. My dad and i checked out the sparks and they seemed...If you’re in the market for a used Ford F150, you’ve come to the right place. Finding the best deals on used Ford F150s can be a daunting task, but with a little research and patie...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: 2014 F150 5.0L V8 misfire on cyl 4 "F". by herrmant » Sat Nov 12, 2016 3:35 am. Check the circuit going to both the injectors and the coil. Have someone crank the engine and see if the coil is getting voltage. Same thing to the injector.2005 f150 cylinder 5 misfire. Your truck experience sounds surprisingly like mine. I had diesel sound most of its life - for sure at 140k. It made it to ~180 to 190k before codes started showing up, and to 212k before serious rough idle and drive-ability issues. 5w30 won't extend phaser life per se, but will put off effects of phaser problem ...Modular V10 (6.8l) - O2 sensor causing misfire? - 2002 F350 178k miles. I've changed plugs, replaced the #10 COP after getting misfire code for that cylinder, replaced PCV valve, checked elbow and hose. During plug change, broke the clip on #8 that holds the wire to the COP.Misfire at idle. 13 f150 5.0. Constant cel when. Idling. Or cold start. I've changed plugs and coil pack. Every once in a while I'll get a cylinder 4 misfire but constantly get cylinder 8 misfire. When the truck warms up driving on Highway it never gives me a cel but when I idle for too long it will.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 …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.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.1997 - 2003 Ford F150 - Cylinder 2 misfire trouble diagnosing - Originally had a cylinder 8 misfire code, so went ahead and changed all plugs, wires, and coil pack for that side of motor , only because guy at auto parts only gave me 1 instead of both like I had asked, anyways, changed everything and ran worse than...2004 - 2008 Ford F150 - 5.4L Random Misfire Under Load - Hey all, I know this topic has been discussed before but I need some help. I have a 2005 Ford F150 Ext Cab 5.4L 3v 4x4 with 149k on it. At approximately 45-50mph, in overdrive, if i lightly accelerate, the engine misfires and the truck...My 2022 F350 7.3L died at 30K miles. Lost compression in multiple cylinders, started with what felt like hard shifting but was actually misfires. Then rough idle, then tapping noises. At first the trucks computer didn't show low compression but upon manual compression test found low compression in cylinder 1.The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video,...Apr 19, 2022 · Diagnostic trouble code (DTC) P0308 stands for “Cylinder 8 Misfire Detected.”. This means the powertrain control module (PCM) detects that there was incomplete combustion or the absence of combustion in the cylinder numbered “8” in the arrangement of cylinders on the engine. Common causes of the P0308 code include a bad spark plug, a ...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 ...Misfire at idle. 13 f150 5.0. Constant cel when. Idling. Or cold start. I’ve changed plugs and coil pack. Every once in a while I’ll get a cylinder 4 misfire but constantly get cylinder 8 misfire. When the truck warms up driving on Highway it never gives me a cel but when I idle for too long it will.P0304 is a cylinder-specific misfire code, meaning only your F150’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your truck, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine.5 posts · Joined 2014. #1 · Jan 9, 2014. 2011 F150 FX4 with 3.5L Ecoboost developed a severe misfire at 65k miles. So far the dealership has replaced a coil and all spark plugs, misfire no longer severe, but still present. After some research, there are problems with the CAC and many of the trucks left the factory with Mis-Gapped plugs.Apr 9, 2023 · Code P0308 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 ...Re: 2006 Ford F-150 5.4 ; Cylinder Misfiring. by Big Screen D » Thu Apr 21, 2011 11:56 pm. Double check that the COP is fully mated to the plug. If no go, pull the plug. It is either a bad plug, cracked porcelain, not tight, has liquid in the well, or has to much anti-seize on the electrode shield and has fouled the plug. mmhyson.Injector could be plugged. Good luck. 1997 - 2003 F150 - misfire on #4 cylinder on 4.6 in 1997 ford f-150 4x4 - i recently got my codes read at autozone and it said i had a misfire on #4 cylinder i recently changed my coil packs my plugs and my wires changed and fuel filter still fill it but not as bad it has good compression but dont know …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.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.1. Bad Cam Phaser: One of the most common causes of a multiple-cylinder misfire on an F150 is a failing cam phaser this has been a known problem for years …Dec 26, 2010 · If it is #8 there is good chance problem is like in mine truck. 2004 - 2008 F150 - p0308 cylinder #8 misfire - hi i am new to forum i have an 06 fx4 the cel came on and i pulled code it says #8 misfire detected engine runs relativly well but is a little harder to start sometimes starts well when cold but i have to hit key two or three times ...12 Jan 2014 ... Your absolute BEST Defense against this is a Quality Dual Catch Can Kit Here- ...Code P0301 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 …2015 - 2020 Ford F150 - 2016 2.7 Eco misfire/issues - Hello, new to the forum. I have a 2016 2.7 4x4 crew that gave me a CEL last Thursday 14 June. Noticed that it also cut off my A/C and started blowing hot air since it was about 94 degrees out. Pulled the code with my scanner which was P0304 (misfire in #4...Jan 8, 2023 · P0308 is a diagnostic code that indicates an engine misfire on cylinder 8 in a Ford F150. Common causes of this misfire include a faulty spark plug, worn spark plug wires, a faulty fuel injector, a vacuum leak, an intake manifold leak, a faulty ignition coil, or an engine mechanical problem. A faulty spark plug can cause a misfire due to a ...1997 - 2003 Ford F150 - Cylinder 8 misfire - Hey guys im new here im looking for an answer that i havent found anywhere. Anyway its an 01 F150 with 5.4 v8 motor. so i have a few codes two that are the most upsetting. One is that number 8 cylinder is misfiring another is that bank one is running to lean2004 - 2008 F150 - PO307 Misfire on cylinder 7, ticking, bucking at 65mph and idle issues - So, the good old check engine light comes on 300 miles after I buy this 04 f150 from the dealership. Oh joy. The engine has a slight miss at idle, makes the truck vibrate off a little. I can hear a ticking coming from the...2004 - 2008 F150 - p0308 cylinder #8 misfire - hi i am new to forum i have an 06 fx4 the cel came on and i pulled code it says #8 misfire detected engine runs relativly well but is a little harder to start sometimes starts well when cold but i have to hit key two or three times before it will catch i changed that...17 Aug 2021 ... Is Your Ford 4.6/5.0/5.4/6.8 2V, 3V or 4V Engine Misfiring / Shaking at 45-50 MPH in Overdrive? Then Watch this! If you are driving at 45-50 ...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.My 2018 F150 with the 5.0 V8 (~15,000 miles) occasionally has a rough idle/misfire when I start the truck. It's only happened maybe three times total but each time I had to turn the truck off and restart it. When it happens the truck idles very roughly and shakes and it smells like unburnt gas in the exhaust.Re: 2006 Ford F-150 5.4 ; Cylinder Misfiring. by Big Screen D » Thu Apr 21, 2011 11:56 pm. Double check that the COP is fully mated to the plug. If no go, pull the plug. It is either a bad plug, cracked porcelain, not tight, has liquid in the well, or has to much anti-seize on the electrode shield and has fouled the plug. mmhyson.Re: 2005 f150 multiple cylinder misfire problem diagnostic. by 2005F1504x4 » Sun Jul 03, 2016 12:52 am. Just in case some one else runs into this problem, it was the vct solenoid that went bad and threw off the timing. Hardest part of the fix was removing the plastic cap that covers it on the valve cover.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.Gen 2 3.5L EcoBoost Cylinder Misfire. fordraptorfun; Dec 27, 2023; Ford Raptor Engine Discussion and Performance Mods; Replies 4 Views 2K. Dec 27, 2023. smgilles. J. ... Ford F-150 Raptor General Discussions [GEN 3] Forums. GEN 1 (2010-2014) Ford SVT Raptor Forums. Ford Raptor Engine Discussion and Performance Mods.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. A misfiring cylinder slows down momentarily, so by monitoring the cam and crank sensor signals ...03-15-2010 08:48 AM. 9. 08-23-2009 08:45 PM. Tags. 1997 - 2003 F150 - Cylinder misfire '98 F150 4.2L - One more question guys: I have been pulling a code for a little over 1 year now thats showing a Cylinder #2 misfire. I don't notice the miss, so its not missing hard. I pulled the plugs, regapped them, then replaced them, with no change.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 -...Fix a cylinder misfire by determining where it is occurring, diagnosing the problem and replacing defective parts. Use an engine scan tool to help isolate the problem cylinder and ...Cylinder 1 misfire and Coil Replacement. by jlmiv » Sat Apr 28, 2012 10:36 pm. I have a 2007 5.4L F-150 with about 96,000 on it. My truck had been running rough for a couple of months, slipping pretty bad around 40-45 mph. CEL finally came on and it was cylinder one misfire. Took it to the dealership and they quoted me nearly $700 to replace ...Ford F150 Forum. The site for Ford truck owners, by Ford truck owners ... / Drivetrain. Modular/Triton V8 Engines: 4.6L, 5.4L (97-10) Looking for recent topics? 2003 4.6L runs rough; code says cylinder #8 misfire. 9 posts • Page 1 of 1. owkaye New Member ... Joined: Wed Feb 17, 2010 8:56 pm Truck: 1998 F-150 4x4 Super Cab 5 speed 4.6L Vin 6 ...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 ...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.The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video,...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. See "Possible Causes" for the most common problems.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 ...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...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...2015 - 2020 Ford F150 - Cylinder #1 Misfire (P0301) - Just passed the 7th Anniversary on March 31st with my 2015 Platinum Ecoboost. Love this truck, custom ordered it in January 2015, my name is on the window sticker. Currently we have 152k on the clock, very few issues that were not easily and cheaply diagnosed with...Running out of ideas!! Just got my F150 about 2 weeks ago. Replaced the sparkplugs, which required me to buy the removal tool, and the coil packs. The wires were fine. Took it back to the shop for a scan and read Cylinder #8 misfire. Changed the coils around and still cylinder 8. Checked the sparkplug, worked fine.The P0301 trouble code will trigger your F150's check engine light. The truck itself may begin to run rough. It depends on how serious the misfire is. The vehicle may produce excess vibration, especially at lower RPM. Fuel mileage may suffer. You may smell raw gas coming from the tailpipe. The F150 may backfire.Dec 6, 2018 · Fixing P0306 should be considered a high priority. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion. It also can cost money to ignore it, since driving with a misfire can damage the F150’s catalytic converter. The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 6 into ...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.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. A misfiring cylinder slows down momentarily, so by monitoring the cam and crank sensor signals ...If you have a Ford 5.4 camshaft code, lean condition or misfires, this article is for you. Late model Ford 5.4 engines use variable valve timing (VVT) Mechanism mechanisms to advance and retard timing to correspond to driver demand.2006 FORD F-150 5.4L 3V Triton Multiple misfires was created by garypuppet1. I have a 2006 Ford F-150 XLT 4X4 5.4L 3V TRITON with 128152 miles. It had a misfire under sever load. I ran an Actron diagnostic tool on it and it diagnosed cylinder 8 misfire P0308. I decided because of its miles it was time for a tune up.I have a 2003 crewcab 4x4 XLT F150 5.4L 127000 miles. I get a code (P0308)that says cylinder 8 misfired, I replace the coil pack,Spark plug and Fuel injector, Still no change, I know the plug is firing. Please help. Last edited by Wolfepack99 on Sun May 10, 2009 11:33 pm, edited 2 times in total. by TONY4848 » Sun May 10, 2009 10:35 pm.2004 - 2008 Ford F150 - Cylinder 7 Misfire - Whats going on guys, I'm new to the forum but heres my issue. So I have a 2004 F150 V8 Heritage edition. It was originally natural gas but has since been converted to unleaded. So a few weeks back I started getter a cylinder 7 misfire obd code. Since then I've replaced the...97' #2 and 8 cylinder misfire. by jkjenkinsiv » Mon Dec 12, 2005 9:19 pm. I have a 97'F-150 w/a 4.6L. Truck has 130,000+ miles. The check engine light is on steady and some times it starts flashing. The truck intermittenly runs very rough, no power. Went to autozone to pull the code and they said it was number 2 and 8 cylinder misfire.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.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.2004 - 2008 Ford F150 - 2008 F150 4.6 misfire - I have a 2008 F150 4.6 that I just replaced the upper intake manifold because of a coolant leak. Here is the issue... when I started it, it got a nasty misfire that wasn't there before and tripped a misfire code. The left converter got the rotten egg smell and started to...