Misfire cylinder 8 ford f150

2003 Ford F-150 SuperCrew King Ranch 4x4 Previous trucks: 02 F-150 SuperCrew XLT, 11 F-150 EcoBoost Lariat, 07 Ranger, 01 SuperCrew, 98 SuperCab 4x4 ... drove for 1 week, same misfire Cylinder 4. Had compression checked followed by changing the fuel injector, Cleared code, drove it for 8 days, same code shows up. Finally changed the coil on ...

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...1995 Ford F150 4.9L 4WD, Manual - suddenly misfire on cylinders 1 and 4, lean codes, strong fuel smell and lots of fuel - Answered by a verified Ford Mechanic ... I …Code 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, see "Possible Causes". User Submitted Video.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.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 ...

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 ...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.Nov 30, 2010 · 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.Fixing a P0306 code can cost anywhere from $60 to $2000. It all depends on the problem, your location, and the type of the car. Depending on the diagnosis time, just finding the problem will cost between $75 and $150. We will show a complete list of all the components that you may end up replacing and paying for.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.

The P0303 code means that cylinder #3 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 #3. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems.There are several possible causes for a multiple cylinder misfire in your Ford F150. One common culprit is faulty spark plugs or ignition coils. These essential components can wear out over time and fail to provide the necessary spark for proper combustion. Another possible cause is a clogged fuel injector, which can disrupt the fuel flow to ...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...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.

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Reasons for F150 Misfire Symptoms. Quick Fixes to Try Out. Bad coil packs issue. Replace them with a new one. Faulty or loosen up spark plugs. Repair them. Dirty fuel Injector Issue. Clean it using a liquid solution. Internal engine defects including pistons & rings, cylinder head, and timing belt.2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. Multiple Bank 2 misfires. Reply Subscribe . Thread Tools ... 0307 misfire cyl 7 0308 misfire cyl 8 2198 O2 A/F Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1) Notably, to me anyways, no more p0022 or p0012. ...2015 - 2020 Ford F150 - 2018 F150 5.0 misfire?? - 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...To diagnose the P0301 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.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 -...P0304 on Some Ford Vehicles. The code appears in a 2009 Ford F-150 FX4 5.4L V8 because of the following conditions: Air leaks in the Air Induction system (e.g., in the intake manifold) Fuel delivery problem (e.g., a contaminated, dirty or sticking fuel injector) Driving the vehicle low on fuel (less than 1/8 of a tank)

Last week my 2021 F-150 3.5L with about 33K developed a fairly hard shudder under low RPM cruising when a light amount of load is added, like accelerating slightly or going up a small rise. The shudder will continue unless you increase the throttle and it shifts down or manually shift down. Twice I've received a notification from …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. Anyone got any ideas? injector ? Its a...11 Feb 2017 ... Today we have a 2001 Ford F-150 Pick up truck with a check engine light on. In this video we will used our MaxiScan OBD2 Code Reader to find ...Ford Truck Enthusiasts Forums. Super Duty/Heavy Duty. 1999 to 2016 Super Duty. 6.8L V10 misfire. 1999 to 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines. Sponsored by:Check the breather ontop of the valve cover that runs to the top back of intake manifold, if the hose came loose it could cause a misfire, i've had that happen. If a vaccum line came off elsewhere it could be causing an issue with fuel air mixture and cause a misfire. Check your coil pack connections make sure they are still good and they aren ...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 ...Jan 15, 2014 · 2013 F150 Cylinder 8 Misfire. I've recently run into a check engine light and have discovered that it is code P308 for a Cylinder 8 Misfire. I've tried to clear it a number of times but it comes back with a vengeance. I'm in a 2013 5L Fx4. I just took it in to the maintenance shop and had no spark plugs put in (routine 96k FMPP replacement) and ...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.Jun 18, 2023 · 2011+ Engine Related Questions - 2012 F150 5.0 Misfire - I recently bought a 2012 F150 5.0 that I knew had a cylinder 8 misfire. As part of my diagnosing, I did a compression test and found #8 at 60, and the rest around 150. A leakdown test shows the leak is from the intake valves. The truck hardly has enough power to...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. About 3 miles later, it started running real rough.

Here are some of the most common symptoms of a misfire condition: The check engine light will be on. One or more misfire codes (P0300, P0301, P0302, P0303, P0304) will be stored in the car or pickup's computer's memory. P0300 Random Cylinder Misfire. P0301 Cylinder #1 Misfire. P0302 Cylinder #2 Misfire. P0303 Cylinder #3 Misfire.

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.6 Apr 2017 ... How to find a misfire in your Ford ... F150 Ecoboost Check Engine Light Flashing - Rough Running - Common Causes Explained. ... 8 Top Noises Your ...Reason: Added additional detail. 2004 - 2008 Ford F150 - 5.4 misfire 5,6,7,8 - Hey guys Im lost here. Bought a 2007 5.4 3v it had number 7 rocker failure on both intake valves. I replaced cam, rockers, phazers, chain, guides, followers,vvt, cam shaft sensors, crank sensor and plugs new oil and filter all motorcraft.2007 Ford F150: 5.4 V8..a misfire..cylinder..change spark plugs - Answered by a verified Ford Mechanic. ... I have a 2007 Ford F-150 5.4 V8 with 106500 miles had a mis fire in the engine took it to dealer though it was spark plug, because the code said cylinder #8 was mis firing. They checkit out and changed spark plugs.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 (especially 2005-2012 Ford F150s and 3.5 EcoBoost engine) and is almost always the cause of a random misfire. The cam phaser is responsible for adjusting the timing of the valves as they open ...Received 6 Likes on 2 Posts. 7.3L Gas engine misfire. I have a 2020 F350 w/ the 7.3L gas motor with about 49k miles. I recently starting getting a rough idle at stop lights/signs and eventually got the CEL. My scan tool said misfire on cyl #4, so after reading posts here tried to get it in to the local Ford dealer here in Reno but they are so ...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.Feb 5, 2024 · There are several possible causes for a multiple cylinder misfire in your Ford F150. One common culprit is faulty spark plugs or ignition coils. These essential components can wear out over time and fail to provide the necessary spark for proper combustion. Another possible cause is a clogged fuel injector, which can disrupt the fuel flow to ...

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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...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 5.0 Misfire - Hey there, longtime listener, first time caller. I have a 2014 F150 5.0 with about 120,000 miles on it. Starting around March of this year I got a check engine light (P0304) for a misfire in cylinder #4. So I went out and bought 8 brand new motorcraft coils and the problem...Most engines have a 4, 6, or 8-cylinder engine, where more cylinders typically mean more power. Power is generated by pistons that move up and down while fuel is ignited at very specific times. A misfire typically occurs when the timing of this ignition is off. P0304 indicates that cylinder 4 is experiencing misfires. P0304 CausesModular V8 (4.6L, 5.4L) - 4.6 misfire problems - Alright guys, I picked up a 97 F-150 4x4 yesterday for $1000 with 300k miles on the clock. I had to drive it 3 hours to my parents house, and the truck had a misfire unless it was romped on or when ya let off and coasted. The guy suspected electronics at first, changed...Joined: Mon Oct 22, 2012 2:53 am. Truck: 02 F150 SCREW. Re: Bank2 (Driver Side) Misfire. Cyl 4,5,6. by 3FOX » Mon Jul 03, 2023 8:38 pm. From the codes and what they indicate. The 300 is random misfires detected from all bank 2 misfires and would clear when bank 2 misfires are cleared.1997 - 2003 Ford F150 - Misfire in cylinder 4 and 6 - Ok guys, I have 2 fords. My f150 and an explorer. My explorer (wife explorer) is giving me problems. The explorer forum sucks and i get no help from them. If you guys would be so kind to help that would be appreciated. 2006 Explorer, 4.6 engine 141 k miles.To diagnose the P0308 1998 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.Feb 18, 2023 · 2009 - 2014 Ford F150 - cylinder 8 misfire - first time posting on here so bare with me. two months ago had the check engine light come on for the first time, scanned it and the two codes were P0316 and P0308. replaced all 8 spark plugs, cleared the code and then it came back on 2ish weeks later. replaced the coil...Nov 28, 2023 · 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.4 posts · Joined 2020. #1 · Jan 31, 2021. I have a 2013 3.5 Ecoboost. It started running rough last week. Ran a diagnostic and came back with PO304, Misfire on cylinder 4. I swapped the coils and still had a misfire on 4. Replaced all 6 plugs, tested the coil again, definitely getting spark Pulled all the MAP sensors and cleaned them. ….

1 / 1. Forum Jump. 1997 - 2003 F150 - cylinder 4 & 7 misfire 97 f150 4.6l - I have a misfire on cylinder 4 &7 and I can't figure out for the life of me what it is. The plugs only have about 10k on them and they are Motorcraft platinums. I just replaced the plug wires and stI'll no fix. Swapped the spark plugs and injectors from 4 and 7...I have a 1997 f-150 4.2 with 187000 miles. I'm having an intermitent issue with what I believe is an electrical issue. Check engine light will come on and flash several times then turn solid. When checking the code it is always the same thing, P0304 (misfire in cylinder 4).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 ...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.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.Received 5 Likes on 5 Posts. 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 forum discussions and ...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 - 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...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 ... Misfire cylinder 8 ford f150, The P0306 code stands for "Cylinder 6 Misfire Detected," which means the powertrain control module (PCM) has detected that cylinder #6 did not ignite properly. Some of the possible causes of the P0306 code include worn-out ignition system parts, vacuum leaks, and insufficient fuel pressure. An illuminated check engine light, sluggish ..., Cylinder number 1 in code P0301 would refer to the first cylinder in the firing order as well as the forward cylinder on the crankshaft. For example, on a Ford V8, the cylinders are numbered 1 to 4 on the passenger side bank and 5-8 on the driver side bank, beginning at the front of the engine., Re: misfire 8.cylinder triton 4.6. by AlbertaOilPatchF150 » Thu Aug 30, 2012 2:22 pm. My 2000 4.6L was doing that back in March, turned out to be moisture in spark plug wells on the rear cylinders on both sides (snow melting on cowl ran down firewall & dripped right in there), causing a short which the OBD read as a miss fire., 2009 - 2014 Ford F150 - Low compression 5.0 V8 - Truck has been running at low RPM with a random hard start. It tossed a P0230 code. I thought it was going to be a fuel pump issue. Ran a compression test and this is what I got. 5% low on cylinder 7. Freaking out that this is going to be a serious concern., 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..., 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., 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., Tech Notes. 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 ..., 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., A 4-cylinder car loses 25% of its power from a misfire while a the V10 Triton in a Ford heavy-duty truck, for example, only loses 10%. Regardless of what size engine …, Heres the background: 2015 F250 6.2 liter gasser. 138,000 miles. I just bought it used about 1500 miles ago. Drove it for maybe 1000 miles with no issues - ran smooth, no check engine lights, nothing out of the ordinary other than that the fuel economy was worse than expected (not that I expected it to be good - but it seemed that 11 mpg …, by v-king » Tue Sep 02, 2008 4:27 am. I've got a problem with rain water/carwash causing Cylinder #8 misfire. According to my mechanic it's a fairly common problem on a 98 f-150, however I couldn't find a single post with this issue. This is the second time it's happened in the last two moths., 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 why ..., Replacing a bad vacuum line may resolve the misfire or help the engine run better. 3. Disconnect the fuel injectors one at a time and look for a change. If you're still having trouble finding the misfiring cylinder, disconnect the power to the fuel injectors one at a time to see its effect on the engine., Sep 11, 2018 · 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., Jan 15, 2014 · 2013 F150 Cylinder 8 Misfire. I've recently run into a check engine light and have discovered that it is code P308 for a Cylinder 8 Misfire. I've tried to clear it a number of times but it comes back with a vengeance. I'm in a 2013 5L Fx4. I just took it in to the maintenance shop and had no spark plugs put in (routine 96k FMPP replacement) and ..., 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..., 2014 F150 5.0L misfire. ... Mine may be slightly different in that I do not get 8-15 on every cylinder, from normal driving anyway. I will have a cylinder or two that may have 0. I do have intermittent shuddering/hesitation/shift issues. ... 2014 Ford F-150 5.0 XLT 4x4 3.55. Please Log in or Create an account to join the conversation., Jun 18, 2023 · 2011+ Engine Related Questions - 2012 F150 5.0 Misfire - I recently bought a 2012 F150 5.0 that I knew had a cylinder 8 misfire. As part of my diagnosing, I did a compression test and found #8 at 60, and the rest around 150. A leakdown test shows the leak is from the intake valves. The truck hardly has enough power to..., 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 ..., Replacing a bad vacuum line may resolve the misfire or help the engine run better. 3. Disconnect the fuel injectors one at a time and look for a change. If you’re still having trouble finding the misfiring cylinder, …, 2002 F150 5.4 Sputtering/Misfire. by tjnevil » Mon Oct 04, 2010 5:07 am. My truck started sputtering on the way home from work stoped off at Autozone then the engine light came on. AZ code read misfire #4 cylinder. So I then went across the street to O'Rielys to buy a coil. The plugs were changed 10,000 miles ago so I did not buy one., 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 ..., 1997 - 2003 Ford F-150. Looking for recent topics? 1998 F150 4.6L Cylinder 8 Misfire - Need advice. 17 posts • Page 1 of 1. gahomegarden New Member Posts: 11 Joined: Sun Aug 28, 2011 8:00 pm Truck: 1998. ... 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 was ..., 2004 - 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..., This occurs with surprisingly little amount of moisture present. Remove the spark plug and look for wetness below the hexnut and on the threads. Completely dry the spark plug. Dry the inside and outside of the spark plug boot. If available blow compressed air down into the cylinder 4 plug hole to dry it off., 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..., 2015 3.5 Cylinder 1 misfire code. Getting a bad engine shudder and power loss at high acceleration. Check engine light flashing throwing a cylinder 1 misfire code. I installed new coil packs and plugs less than 500 miles ago. Idles smooth and runs great at low to med power settings. I do have a couple of the Evap codes showing up as well., 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 #8 cylinder sets under one of the air conditioning hoses, the one that sweats. That has been a common problem on the earlier 5.4l from what I have read. The moisture drips straight down on the #8 COP. I think to fix this people have wrapped the line with something to redirect the condensation., When the Ford Falcon was released in late 1960 in Australia, it challenged rival General Motors. Learn how the two companies competed. Advertisement Ford's straightforward compact ..., 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., 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 ...