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2009 - 2014 Ford F150 - Low Compression on cylinder 8? - 2013 F-150 5.0 4x4 190k miles So a couple weeks ago I took the truck in to get an intermittent "hiccup" looked at. Really only did it on the highway while cruising steady. I would just feel this misfire feeling throughout the truck but it would never changed the...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.2009 - 2014 F150 - 2013 5.0 cylinder 5 misfire P0305 - Working on a 2013 5.0 F150 with a friend from work. It has a P0305 cly 5 misfire, which did not move when we swapped coils. Compression test shows all cylinders within 5%.Disconnecting the plug on the coil makes no change in the idle - it's missing continuously....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 ...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.15 May 2021 ... This 2006 F-150 has a slight miss. We take the long way around barn to get it fixed.Truck: 02 F150 SCREW. Re: 2002 f150 5.4L PLEASE HELP!!!!! P0304 misfire. by 3FOX » Wed Dec 21, 2016 12:51 am. Let me give you some basic info. Any 30x cylinder code is from the coil 'secondary' onward to the boot, plug or cylinder fault. The flashing CEL tells you the ignition went missing and unburnt gas is being passed to the …Seemed to have found the problem! 2004 - 2008 Ford F150 - 2006 F-150 5.4L constant misfire fixed!!!! - Ok guys, this is a log of my misfire nightmare. Truck has 122K miles We were driving home from Oklahoma to Dallas Texas and once we hit grapevine the truck started idling VERY bad. We limped home and went to bed.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.1997 - 2003 Ford F150 - Cylinder 1 misfire 2000 f150 5.4 2V - Hey y'all, I got a 2000 f150 2V 5.4 4x4 I have constant issues with the 1 misfire. I changed the plug and the coil multiple times. But in a month or so it will happen again. I did have a coolant leak on the intake but the intake was replaced 2 yrs ago yet...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...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.2011 F150 5.0 Misfire Issues. Ran into some challenging issues last night with my truck. It's a 2011 F150 5.0 with 139,000 miles. Spark plugs were changed about 10,000 miles ago. Was running fine all day yesterday, then I stopped and filled up the tank with E85. The previous tank was about 20% E85 and 80% 87.A misfire is what happens when a cylinder fails to combust its air/fuel mixture correctly. The result is an engine that stumbles, idles roughly, and doesn't …Originally Posted by JCR 56. Move the #7 coil to another cylinder and if the miss follows just replace that coil, and if it doesn't, then you can look at something else being the problem. Good idea. General F150 Discussion - 2002 f150 5.4 misfire - Hey so I need to pick some brains I just did all plugs on my truck I had misfire cylinder 7 didn ...If a def injector the DTC will point to the test cylinder. 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 ...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 ...It is important to know the cause of the misfire in order to make the necessary repairs. Comparing the P0308 Ford F150 engine misfire code to other Ford models can help to diagnose the issue. The P0308 code is a generic code that is used to indicate an engine misfire on cylinder 8. This code is applicable to all Ford models, including the F150.2004 - 2008 Ford F150 - Misfiring on cylinders 3,4,7,8 - Hello, I have a 2007 Ford f-150 5.4L 3v and while towing a very light trailer I got the check engine light flashing and the truck started to shake while trying to maintain speed. ... 8. P0308 - CYLINDER 8 MISFIRE DETECTED Reply Like 03-23-2018, 01:53 PM #10 emarquez1997 ...The P0304 code means that cylinder #4 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 #4. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems. There is a Factory ...P0306 definition: Cylinder 6 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 ...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 …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.Maintenance 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...2015 - 2020 Ford F150 - 2016, 5.0 Random Misfire All CylsFeb 5, 2024 · There are several possible causes for I have a 2006 f150 5.4 l 3 valve that keeps misfiring on cylinder 4 at high RPMs I have replaced all spark plugs and COP using oem parts along with using fuel cleaning and oil treatment. Has anyone heard of this or dealt with this first hand. I have spent too much money already to keep playing this guessing game. jd61. Jul 7, 2020 · This video will show you how to 2009 - 2014 Ford F150 - 2011 F150 5.0 with the cylinder 8 misfire - First post on here, I have a 2011 f150 with the 5.0 145,000 miles and I got the cylinder 8 misfire. I had read on here about the valve/head issue and took it to a shop to confirm my suspicion. Low compression on cylinder 8. They wanted to replace the... 2004 - 2008 Ford F150 - 5.4L Random Misfire Under Load - Hey all, I

1997 - 2003 Ford F150 - 4.6 triton v8 cylinder 3 misfire - Anyone know what would be the cause if this? Someone told me it could be the coil pack. Need answer inspection been been out since Feb. Don't want to take it in to get checked if I can fix it myself it'll be a lot cheaper. Low on cash.4.) Checked the plugs in 4 and 7 and they look good. No unburned fuel, not fouled, cracked or anything. 5.) Checked the compression in 4 and 7. 150 lbs in both. 6.) and this is the mother. Thinking it was a vacuum leak in the intake manifold, replaced the entire intake upper and lower along with the gaskets.P0306 #6 Cylinder Misfire. Okay, 5 minutes into my drive to work I'm merging on to the highway and gradually go wide open throttle. Transmission was in fourth, downshifts into third and then as I go further into the throttle it goes down into second and once the RPMs hit about 5,000 power cuts out, CEL starts flashing and everything goes to ****.2004 - 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...This video will show you how to fix P codes 300 through 308.

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.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.1997 - 2003 Ford F150 - Multiple cylinder's misfiring on a 2001 5.4 F150 - hi, i'm looking for alittle help on figuring out what is going on with a 2001 ford F150 with a 5.4L engine with 163.000 miles, i'm looking at buying, the truck doesn't have much power at this point, and misfire's badly, especially when i put it...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Just had my 2012 F-150 5.0 in the shop for brakes, had them run . Possible cause: Misfire on acceleration followed by the emissions light. I also had the battery light co.