Ford p0306

Code P306 and P316 both indicate a misfire on cylinder number six. P300 is misfire on unknown cylinder. Car missed and started running very rough. I replace...

Code P0306 1999 Ford F150 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.Apr 9, 2014 · Code P306 and P316 both indicate a misfire on cylinder number six. P300 is misfire on unknown cylinder. Car missed and started running very rough. I replace... Ford Escape P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.Ford Flex P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.1997 - 2003 F150 - Intermittent P0300 & P0306 when cold - I had a problem that began last spring with my 97 F150 4.6. Sometimes, after cold morning starts, my truck would idle ok, but run poorly during acceleration with hesitation and a loss of power until warmed up. The codes were either P0306 or once in awhile...You can get a phone app like torque to read codes, but you need to buy a plug in OBD dongle. Code 0300 just says there is a misfire, if a specific cylinder is obvious to the engine computer, it will specify which one, like P0306 is a misfire on cylinder #6. Reply Like. # 3. 07-21-2022, 08:20 PM.In a report released today, Ryan Brinkman from J.P. Morgan maintained a Buy rating on Ford Motor (F – Research Report). The company’... In a report released today, Ryan...Liking the Ford Ranger Forum. Join Date: Jan 2012. Posts: 17. Misfire P0304 P0306 P0316. Hello. I have a 2004 Ford Ranger XLT 3.0L V6 with 77K miles. Today I got the codes P0304/P0306/P0316. This came after a weekend of driving about 5 and a half hours to Southern California. During the trip I seemed to get really poor gas mileage.

Ford Edge P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.The air conditioning system, or AC system, on your Ford F-250 should give you years of trouble-free performance. The AC system uses compressed refrigerant to cool the cabin when yo...Dec 6, 2018 · Ford Mustang P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine. When P0316 appears with other codes such as P0300, P0301, etc, it can be a symptom of a much larger problem. If it does appear with a P0301-P0312, those are cylinder specific codes. They indicate a misfire in one of your Explorer’s specific cylinders. It would be wise to start looking at those codes for diagnosis.Feb 18, 2022 · 2019 XLT 3.5L NA - Flashing Check Engine P0300, P0305, P0306. I have taken my Explorer to Ford 3 separate times for the same issue. During the fall was the first time and these codes came up, Ford dealer was told to replace the spark plugs and coils on 5 & 6 cylinders. The code P0300 indicates there are repetitive misfires on one or more cylinders in your car. You will often find this code together with another code of the specific cylinder the misfire occurred on. If the last digit of the trouble code is not zero, e.g., if the generated code is P0302, the number 2 indicates that cylinder number 2 has a misfire.1997 - 2003 F150 - P0306 #6 Cyl misfire - So my 99 F-150, 4.2L started throwing a code a few weeks ago, P0306 #6 Cyl Misfire. This thing has got 238,000 and has been the most reliable commute vehicle I've owned. Today I changed all the plugs and wires (they were due anyways) which didn't resolve the issue.

The Ford Motor Company is one of the most iconic and recognizable car companies in the world. It has been around since 1903 and has been producing some of the most iconic vehicles ...Ford Crown Victoria P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at ...Year, Model & Trim Level. 1975. December 8, 2021. #1. Got a 2012 Explorer with the 3.5L. It gives the 3 codes, P0300, P0302, P0306 which are all random misfire codes. These are CEL flashing codes under load and after a few times it stays on. I am only driving the car when testing. It does have a small erratic idle.The code P0316 on a Ford vehicle indicates a misfire detected on startup (first 1,000 revolutions) in the first cylinder. This subheading will explain the meaning of the code and dive into the potential causes behind it. Answer: The code P0316 is specifically related to a misfire condition that occurs during the first 1,000 engine revolutions ...Oct 13, 2012 · P0301 Cylinder 1 Misfire Detected. P0306 Cylinder 6 Misfire Detected. P0351 Ignition Coil A Primary/Secondary Circuit Malfunction. The Explorer uses a waste spark ignition system. Pairs are: 1&5, 6&2, and 4&3. Since cylinders 1 and 6 are misfiring then two coil sections are involved.

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Sep 4, 2023 · Code P0306 occurs when the ECM (engine control module) detects a misfire on engine cylinder number 6. When cylinder number 6 misfires, it means that the air and fuel mixture in that cylinder has failed to ignite. As a result, the engine’s speed fluctuates, causing the crankshaft position sensor signal to vary. The ECM detects this and reports ... Dec 7, 2018 · P0306 is a fairly common trouble code with the Ford Windstar. 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 Windstar. The nice thing about P0306 is that it's a cylinder specific trouble code, which makes diagnosing the problems much What is code P0306 on the Ford Escape? Ford code P0306 indicates that there is a misfire on cylinder 6. Ford P0306 code happens when the PCM identifies no proper ignition on cylinder 6. What is the code P0306 on a BMW? BMW code P0306 implies that cylinder 6 is misfiring. The PCM logs P0306 code BMW when it notices no correct ignition on cylinder 6. Code P0304 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 …To diagnose the P0306 2000 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.

The cost to diagnose the P0306 1998 Ford F150 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most …Reaction score. 24,101. My ’20 Lincoln 3.0TT reported in with p0300 / P0316 - Congratulations BTW, that’s an impressive number of DTC’s. Mine was fuel injectors - plural. In relevant part: ‘not all cylinders contributing to power balance’ -- this was interesting, the 3.0 MKZ will do low 5 seconds to 60 all day long and no that’s not ...Ford Mustang P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.97 f150 cyl 3 4 7 8 misfire. Help. 1997-2006 Expedition & Navigator - **Please help** P0306 CYLINDER 6 MISFIRE ISSUE - Hey guys, I have a 03 expo with a 5.4l engine, last night I started getting the misfire issue on cylinder 6, now my problem is that I just replace the serpentine belt last week and Im just a regular guy trying to save a buck on ...Received 6 Likes on 6 Posts. P0306. Guys! This code is haunting me. I can't seem to get rid of it. P0306- misfire on cylinder 6. So far I have replaced the plug and coil twice. Changed the injector. I replaced the Throttle position sensor, cleaned the mass air flow sensor, replaced the fuel filter, and replaced the VCT solenoids.When P0316 appears with other codes such as P0300, P0301, etc, it can be a symptom of a much larger problem. If it does appear with a P0301-P0312, those are cylinder specific codes. They indicate a misfire in one of your Explorer’s specific cylinders. It would be wise to start looking at those codes for diagnosis.P0316 Symptoms: Ford Ranger. When P0316 appears as a stand alone code, there isn’t going to be much in the way of symptoms other than a rough and clunky start. The service engine soon light will come on. That’s usually about it. When P0316 appears with other codes such as P0300, P0301, etc, it can be a symptom of a much larger …Sometimes, after cold morning starts, my truck would idle ok, but run poorly during acceleration with hesitation and a loss of power until warmed up. The codes were either P0306 or once in awhile P0300. I did some maintenance items: clean MAF, change fuel filter, change PCV, check spark plugs and wires. The problem went away during the summer ...BTW Welcome to FTE. 1983 - 2012 Ranger & B-Series - 2001 ranger with a p0300 code driving me crazy - hi every one i can use some help on this one i have a 2001 ranger with a 4.0 sohc engine with a 110000 miles on it . one day it started to miss sligthly under a load no big deal right so i checked the codes and found a p0303 so i did a...

Ford Mustang P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.

P0306 code is defined as cylinder 6 misfire detected. The majority of cars are powered by an engine with four or six cylinders. And many trucks will have an engine with six to eight cylinders. In engines with six or more, the P0306 code may appear. It will specifically apply to cylinder 6, thus the term cylinder 6 misfire.P0301 Cylinder 1 Misfire Detected. P0306 Cylinder 6 Misfire Detected. P0351 Ignition Coil A Primary/Secondary Circuit Malfunction. The Explorer uses a waste spark ignition system. Pairs are: 1&5, 6&2, and 4&3. Since cylinders 1 and 6 are misfiring then two coil sections are involved.2009 - 2014 Ford F150 - 2013 F150 Fx4 Ecoboost P0306 engine code - I have a recently purchased 2013 f150 Ecoboost. I am having a issue with a P0306 engine code. At wide open throttle when the truck reaches 5k or more it will fall on its face and the check engine light will flash. Truck will run rough for a few moments...Code P0306 2006 Ford Fusion 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 …The air conditioning system, or AC system, on your Ford F-250 should give you years of trouble-free performance. The AC system uses compressed refrigerant to cool the cabin when yo...To diagnose the P0306 2000 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.What is the Cost to Diagnose the Code P0306 2008 Ford Fusion? Labor: 1.0. To diagnose the P0306 2008 Ford Fusion 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.17 Apr 2020 ... FORD CODE P0301 P0302 P0303 P0304 P0305 P0306 P0307 P0308 MISFIRE FIX If you have Ford car and your engine light is on and you get any of ...

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P0306 is an OBD-II generic code that the engine control module (ECM) detected a misfire on cylinder number 6 of the engine. What causes the P0306 code? The spark plug is not …P0306 DTC means that there’s an engine misfire in cylinder 6. The Powertrain Control Module ( PCM) detects that a misfiring is occurring in the 6th cylinder in the car motor, thereby alerting the engine to set this trouble code. It’s a generic code, applying to all OBD-II equipped models. While the P0306 trouble code might be considered ...Ford Econoline P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand …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...Ford Econoline P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand … This P0316 code means the powertrain control module (PCM) has detected a misfire shortly after startup, specifically within the first 1,000 revolutions. This code may also be triggered with another of the other misfire codes which are P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0309, P0310, P0311, P0312. 17 Apr 2020 ... FORD CODE P0301 P0302 P0303 P0304 P0305 P0306 P0307 P0308 MISFIRE FIX If you have Ford car and your engine light is on and you get any of ...Let's see what the charts look like. (Ford is a holding in the Action Alerts PLUS member club. Want to be alerted before AAP buys or sells F? Learn more now.) Employees of TheS...Ford Escape P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine.You can get a phone app like torque to read codes, but you need to buy a plug in OBD dongle. Code 0300 just says there is a misfire, if a specific cylinder is obvious to the engine computer, it will specify which one, like P0306 is a misfire on cylinder #6. Reply Like. # 3. 07-21-2022, 08:20 PM.Code P0306 2010 Ford Fusion 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 … ….

anyway code scans our of forscan brings up. P0206 - injector 6 A circuit open. PO306 - misfire detected cylinder 6. P0313 - misfire detected with Low fuel - odd as the tank was 1/4 full at the time. And odd as I don't know how long this has been an issue. B1448 - Right Rear Stop light - sure enough it doesn't light.The cost to diagnose the P0306 1997 Ford F150 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …Ford Truck Enthusiasts Forums. Newer Light Duty Trucks. 2004 - 2008 F150. Diagnosing the misfire codes P0306, P0302. 2004 - 2008 F150 2004, 2005, 2006, …These images of Christine Blasey Ford's appearance before the Senate judiciary committee illustrate the the extraordinary nature of the proceedings. Images of Christine Blasey Ford...Agility Robotics is putting Digit — a two-legged robot that can lift 40-pound packages — on the market. And Ford Motor is the first customer. Ford, which has been involved in a res...Could very well be a coil. I had one fail at < 500 mi. Clear the code. Swap the coil with another cylinder. See if the misfire mover to the other cylinder. Never had a bad plug, but I suppose if the code does not move to the other cylinder when you swap the coil, then you could try the same with approach with the plug.Just bought a 2008 F250 (6.4L, cc, swb, 4x4, 150k) that's throwing a P0306 #6 cylinder misfire detected code. Truck runs great and lie-o-meter is reading between 18-19 mpg on a 40 mile trip (99% highway, driving 60-70). Would like to get some opinions on what is most commonly the solution for this code and where I should start with trying to ...First, you must understand what does the code P0306 mean? Inside the engine is a series of cylinders. When the engine is running, it injects a mixture of fuel and air into the cylinders. Then, a spark is generated which combusts the fuel mixture. This explosion pushes the cylinder down, which is what generates power. Ford p0306, The P0306 code means that cylinder 6 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 6. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes". P0014 / P0306 2002 Trailblazer., Liking the Ford Ranger Forum. Join Date: Jan 2012. Posts: 17. Misfire P0304 P0306 P0316. Hello. I have a 2004 Ford Ranger XLT 3.0L V6 with 77K miles. Today I got the codes P0304/P0306/P0316. This came after a weekend of driving about 5 and a half hours to Southern California. During the trip I seemed to get really poor gas mileage., Ford Ranger P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine., Ford F150 P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine., When P0316 appears with other codes such as P0300, P0301, etc, it can be a symptom of a much larger problem. If it does appear with a P0301-P0312, those are cylinder specific codes. They indicate a misfire in one of your Explorer’s specific cylinders. It would be wise to start looking at those codes for diagnosis., Ford Flex P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the engine., 2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316. Diagnose engine for engine misfire concern., 20 May 2019 ... Ford's with 3V 5.4l are notorious for having mis-fire codes. There ... Ford 5.4l 3v Misfire (p0300,p0301 p0302 p0303 p0304 p0305 p0306 p0307 p0308., The code P0316 on a Ford vehicle indicates a misfire detected on startup (first 1,000 revolutions) in the first cylinder. This subheading will explain the meaning of the code and dive into the potential causes behind it. Answer: The code P0316 is specifically related to a misfire condition that occurs during the first 1,000 engine revolutions ..., 09-28-2007 09:21 PM. 1983 - 2012 Ranger & B-Series - 2002 RANGER CODES P0353, P0302, P0306 - Hey. I'm a newbie here so please bear with me if I leave out some important info at first. My husband's '02 3.0 V6 was running good until a couple of days ago when it started idling really rough and really seemed to lose power., The cost to diagnose the P0306 1997 Ford F150 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., Are you in the market for a used Ford F-150? If so, you’ve come to the right place. Finding the perfect used Ford F-150 at the best price can be a daunting task, but with a few tip..., You can get a phone app like torque to read codes, but you need to buy a plug in OBD dongle. Code 0300 just says there is a misfire, if a specific cylinder is obvious to the engine computer, it will specify which one, like P0306 is a misfire on cylinder #6. Reply Like. # 3. 07-21-2022, 08:20 PM., Department of State. Division of Corporations. Search Records. Search for Corporations, Limited Liability Companies, Limited Partnerships, and Trademarks by Name. Entity …, First, you must understand what does the code P0306 mean? Inside the engine is a series of cylinders. When the engine is running, it injects a mixture of fuel and air into the cylinders. Then, a spark is generated which combusts the fuel mixture. This explosion pushes the cylinder down, which is what generates power., The P0306 code means that cylinder #6 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 #6. 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 ..., The Ford Motor Company is one of the most iconic and recognizable car companies in the world. It has been around since 1903 and has been producing some of the most iconic vehicles ..., A P0306 trouble code is not just another alphanumeric jumble; it’s a signal from your car’s onboard diagnostics system that something isn’t quite right under the hood. Specifically, it indicates a misfire in cylinder 6. While it may sound like technical jargon, understanding this code is crucial for maintaining your vehicle’s ..., 2004 - 2008 Ford F150 - P0306 - Guys! This code is haunting me. I can't seem to get rid of it. P0306- misfire on cylinder 6 So far I have replaced the plug and coil twice. Changed the injector. I replaced the Throttle position sensor, cleaned the mass air flow sensor, replaced the fuel filter, and replaced the VCT..., 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., Luckily, the P0306 error code specifically tells you that the number six cylinder is not firing specifically. This will help you identify what might be causing this cylinder not to fire., Code P0306 2007 Ford Fusion 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 …, P0206 is a diagnostic trouble code (DTC) for "Injector Circuit Malfunction - Cylinder 6". 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 ., What is code P0306 on the Ford Escape? Ford code P0306 indicates that there is a misfire on cylinder 6. Ford P0306 code happens when the PCM identifies no proper ignition on cylinder 6. What is the code P0306 on a BMW? BMW code P0306 implies that cylinder 6 is misfiring. The PCM logs P0306 code BMW when it notices no correct ignition on cylinder 6. , First, you must understand what does the code P0306 mean? Inside the engine is a series of cylinders. When the engine is running, it injects a mixture of fuel and air into the cylinders. Then, a spark is generated which combusts the fuel mixture. This explosion pushes the cylinder down, which is what generates power., Oct 3, 2015 · A constant #6 cylinder misfire would've lead me to assume it was the spark plug. Potential Fixes: - Ordered 6 new Motocraft DG549 coilpacks. - Will be replacing stock CAC with Wagner CAC as soon as it arrives (Wednesday) - Ordered Motocraft SP534 to replace Brisk (after doing research on hit-n-miss record) , 6.0L Power Stroke Diesel - P0300 and P0306 codes. - Hello All, We have discussed this truck many times but a few things have changed. Since my next-to-last post here's what's changed: 1. A reman 6.0 diesel engine has been installed, thus eliminating the terrible oil heating problems I had. This engine has about 50,000..., Code P0306 2003 Ford F150 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 ..., When passing, or attempting to merge at highway speeds, flashing CEL with codes P0300, P0305, P0306. It isn't an issue under normal day to day driving, just annoying knowing its "there". Reply, P0300 Random Cylinder Misfire. P0301 Cylinder #1 Misfire. P0302 Cylinder #2 Misfire. P0303 Cylinder #3 Misfire. P0304 Cylinder #4 Misfire. P0305 Cylinder #5 Misfire. P0306 Cylinder #6 Misfire. Sometimes, even tho' the engine is suffering a bonafide misfire, no misfire codes are registered in the computer's memory and/or no check engine light ..., 3. 11-29-2004 12:28 AM. 2004 - 2008 F150 - Diagnosing the misfire codes P0306, P0302 - My truck decided to have some issues last weekend coming home from a friends house on Thanksgiving. After being on the road for about an hour the truck shuddered, lost speed and was incredibly sluggish trying to get up the hill., Code P306 and P316 both indicate a misfire on cylinder number six. P300 is misfire on unknown cylinder. Car missed and started running very rough. I replace..., Apr 9, 2014 · Code P306 and P316 both indicate a misfire on cylinder number six. P300 is misfire on unknown cylinder. Car missed and started running very rough. I replace...