Misfire at idle no code ford. Jun 21, 2020 · Rough Idle, no codes (08-5. In most cases, a P0300 is accompanied by other trouble codes from P0301 to P0308. The code P0300 stands for random misfire. With the pcv system isolated and pretty much identical with the purge valve in place. Jan 21, 2011. Then a month ago, started getting multiple misfires. Jan 22, 2017 · 7. Jul 18, 2016 · Runs excellent (except for rough idle-never stalls, just "stumbles"). ) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a Mar 20, 2023 · Also, the fault codes you will get in this case refer to a specific cylinder misfire and range from P0301 to P0312, where P0305 refers to cylinder number five, P0302 to cylinder number 2, and so on. ”. 4 i had this same problem with 4. Mar 8, 2017 · P0301 code / misfire, etc. Nov 22, 2020 · 1983 - 2012 Ranger & B-Series - 2002 Ranger, idle misfires - Bought a 2002 Ranger 4. 138,000 miles. 0 ohv engine. I have been having some strange issues with my escape. I have a 2007 GT, 4. Took it to one dealer who said it was the battery replaced the battery same issue took it to another dealership who said there was a bulletin regarding reprogramming the transmission they did that that did not solve the issue they are now contacting Ford to see if they can find a remedy. Dec 6, 2016 · Running semi-synthetic oil. I've suspected O2 sensors. Without any codes being thrown I'm at a loss of what should be looked at next. 0L Power Stroke Diesel - F350 2006 6. replaced the plugs and coils with OEM parts. 4L with 255 k. Jan 16, 2014 · 6. Before you can even diagnose P0304 in your car, you need to find the fourth cylinder’s location. No codes have been thrown, ever. 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 under Jul 4, 2011 · Look for my post when I had to change my plugs. *Forscan O2 test shows a “Fuelsys error” on bank 2. It appears to have been very well maintained and was running great for the 500 mile trip home. So far I've replaced the air filter, MAF, purge valve, spark plugs and coils. 0L U vin, Flex fuel, misfire no codes. Tried different brands of gas. It's worst going up hill at low rpm. New PCV Valve. I put up a thread on here yesterday to see if anyone could offer some insight on a rough idle with misfire code and no answers back yet. A few days later it started running out of balance and the SES light came on. 6L with 315K miles it has a misfire, i can feel. Manual. Feb 23, 2023 · The most common code you will see is the P0300 code, along with a code like P030X. Replaced the plugs at 215,000 miles with Autolite plugs. On the interstate its bad enough that it feels like the transmission slips pretty bad for about a second or so. ive cleaned the TB and the MAF, ive checked for vacuum leaks but ill check that one small line that runs down the back of the intake manifold Nov 28, 2023 · Loss of fuel pressure will cause a misfire and usually no code. P0301 Cylinder #1 Misfire. 0 that has a rough idle warm or cold, it sounds like a misfire and is random with no pattern. No code. Hi all, I have had two mechanics say that they noticed a stumble, or misfire while idling but the car is throwing no codes. My problem is a bad (and getting worse) intermittent misfire, especially @ 1500-2000 rpm under load, but also can feel it at idle. May 4, 2017 · The check engine light comes on and a P030X is set where X corresponds to the cylinder that is misfiring. The car does idle a little rough because it has the ford racing hot rod cams in it but since two different mechanics Dec 11, 2022 · Checked for codes and misfire counts using Forscan. behlinla. With the Ford unit you will be able to do much more than just read codes. P0305 Cylinder #5 Misfire. When cold and just setting off from my house, going up a steep hill, I get a random hesitation and misfire at partial throttle for the first 1/2 mile or so. P0304 Cylinder #4 Misfire. There are many reasons why your engine might be misfiring — ranging from a defective sensor to a fuel injector malfunction. More misfires would happen at idle under no load than if you were at idle and in gear. 7 4x4 crew that gave me a CEL last Thursday 14 June. 6 small V-8 with coil on plug ignition. 2008 F-150 5. I have had no troubles except for some leaky up-pipes so far. After 50,000 miles or so, OEM carbon-core ignition wires develop too much internal resistance, which weakens the spark and increases the risk of misfire. Mar 2, 2019 · 4,611. Jan 12, 2012 · 1999 - 2003 7. Doesnt seem to miss in Park at idle or revving, only seems to happen in gear and its also intermittent. It showed 0 misfires, should the truck be run for a while prior to May 4, 2015 · 4 posts · Joined 2015. Lack of power; Poor fuel economy; Rough idle . 2012 Transit 135,000 Miles. I relax on gas pedal and apply slow but steady pressure on gas Jul 2, 2007 · 1) Change plugs. Vacuum leaks or a faulty fuel injector are two other possible causes. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the engine. 6 gt and the damn thing is missing when I stab the pedal, its not consistant, its not throwing codes and it varys in degree. Jul 5, 2013 · 2013 f150 5. My 05 F-450 V-10 refused to start a couple days ago. Make sure that the oil change did not overfill or underfill. 0 massive amount of misfire no CE light. I have replaced the following with no improvement to the rough idle condition: Plugs, wires, cam synchro and sensor, PCV valve, fuel filter, air filter, IAC valve, throttle position sensor. 0 Misfire. Dec 17, 2009 · 2007 GT Idle and Acceleration Misfire. 2 v8 and it has a rough idle. Jul 17, 2021 · The code P030X (p0301-P0308) means that the cylinder number X misfires, or there is no combustion in that cylinder. The truck now has 369,000 miles on it and I just developed a serious misfire, rough idle, no power Jun 21, 2018 · 2016 2. Dec 21, 2011 · Likes: 0. If the engine coolant temperature (ECT) sensor is defective the PCM will "think" the engine is cold when it isn't. Jun 16, 2014 · Misfiring no codes. Here are some likely culprits behind a misfiring engine: 1. Had a few mishaps with getting the plugs in correctly, but they are all well seated now. Some of the same issues here as well. service engine light is on. 2018 Escape S with 2. High-mileage plug wires also can develop cracks that leak current to ground or to other wires, shorting the Mar 13, 2024 · P0301: This reveals a misfire in Cylinder 1. upon acceleration misses, NO OBD Code at all still after 300 miles. having some ignition issues. If more than one cylinder is misfiring, there will be additional codes for those cylinders as well. 6L, with only a few add-ons. The best way to test the spark plug leads is to switch them around one by one but keep in mind that every ignition coil corresponds to a specific Nov 5, 2021 · I have the 2014 Escape, 1. I suspected a coil that is bad of course but without a code being thrown I am Apr 7, 2019 · EcoBoost. Monitoring the real time data can see misfires and identify whether a couple of cylinders are having issues or a more general problem is causing random misfires of all cylinders. 2L 285k miles Help us help you. I have changed the coil pack and CPS also. i push the gas and the idle smoothes out right away. Actions: New Spark Plugs. Swapped coils around. 54, . I've cleaned plug holes, switched in and out the "cleaned" old plugs, swapped cops 1997-2006 Expedition & Navigator - misfire but no code - i have a2003 expedition with a 4. then check sparkcheck injector pulsecheck coil resistancecheck compression. Jan 11, 2024 · There could be several potential causes for a rough idle in a Ford Ranger without any diagnostic trouble codes. 6 Misfire no Code. The P0301 code means that cylinder 1 has a misfire and isn't burning fuel properly. 4L) Been fighting a rough idle issue. The variable cam timing won't recognize a misfire until the engine is under load. O/D is on. I've been chasing a misfire problem for a while now and need some help. I replaced coil pack 5. P0302: Specific to a misfire in Cylinder 2, this code can point to issues such as faulty spark plugs or ignition coils. Cylinder 1 and 5 specific. If rotation time is too slow as compared to the average of all the cylinders, it is deemed a misfire. Mar 16, 2023 · 3) You Could Be Using the Wrong Scanner. IPR was replaced about 5 years ago. Mar 30, 2020 · A misfire on many/all cylinders likely has one common cause. I bought A 2006 f-150 STX with 4. Aug 13, 2019 · Ran the codes and sure enough, P0011/12 again so I took it back and had them recheck their work. My 2003 Mercury Grand Marquis has continual rough idle and acceleration without any codes showing up. -P0152 code: Replaced B2S1 o2 sensor with Bosch direct-fit (not universal Oct 8, 2022 · P0300 Code causes. 0 Misfire - Hi, looking for some input. I haven't noticed while driving but the car is new to me. Sep 30, 2017 · Issue: Engine Miss / Shaking / No Codes. Also replaced the coils at 225,000 miles. The dealer is able to check for ignition misfires with no light on by using an ids and going into mode 6 data. 1997 - 2003 F150 - 5. kinda misses at idle. I need help! I own a 2013 Ford taurus 3. I searched all the forums over and over, put in a new CPS ICP, cleaned my EBP tube and sensor, cleaned the FPR Sep 1, 2012 · Once you definitely narrow down any issue to specific cylinders then you can try swapping parts and get results. Changing drive modes also doesn't affect it, although it feels like it does it less when in sport mode. A couple weeks ago I noticed it was running a little rough at an idle (just barely noticeable & no codes). 5) Change the Coils. Drove the truck with zero issues for about a month and developed another miss. 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 (CEL) on. It has been doing this for some time now. 2015 5. None displays code. Car is a 2. Jan 8, 2011 · Hey all, 2002 F 150. It started with random misfire but over the last 8k it's not misfires as much as it fires. I have a 2013 with a 5. 6 changed plugs swapped coil packs ended up having to have computer reflashed oem dealer cured problem hope this helps Last edited by chag57; 01-21-2008 at 07:35 PM . I talked to the service tech and he suggested a coolant flush and change. 86,000 miles and a great runner (till now). 3L Power Stroke Diesel - Misfire, white smoke, no power no codes? - I recently bought a 1999 F350 with 365,000 miles on the ticker. I had a friend scan it for codes wihtout the truck having ran for 24 hours. I popped the famous P0304 (cylinder #4 misfire) and have since swapped plugs, cops, pcv valve assy, all 4 O2 sensors, cleaned the MAF and moved around some of the injectors. 4L Misfire -no codes -need help - I am working on a 98 F250 4x4 5. 0 V6 with an automatic transmission. Then it started throwing cylinder 5 misfire codes. So my truck had been running very poorly for the last 8k miles. Light actually went off after long warm up, however came back on after about 6 miles. Truck is not driveable. 0 AWD - sold. Aug 25, 2019 · 06 4. Oct 30, 2018 · Hey guys I'm at a bit of a loss, I have a 2007 6. Here are the current readings at idle and at 2k rpm (images attached). Truck runs fine for a bit and happens again. Have since replaced bad alternator (volt Reg), bad battery, fFuel Filter, MAF, IAC, plugs, tested all COP's without changing Jan 7, 2023 · There are many issues that can cause engine misfires on cylinder 4, resulting in a P0304 code. when accelerating. Proper diagnosis and timely attention to these engine codes can prevent further Nov 25, 2009 · I replaced the manifold and still have problems. The most common cause of a P0304 trouble code is a faulty ignition coil or spark plug. It's always had a random misfire when idling and sometimes when driving on the interstate. Quote: Originally Posted by jstanley. No codes or counters. Dec 3, 2017 · This is my first post on this forum I currently own a 2012 Ford F-150 with the 6. I get misfire rate of about 12% on forscan mode 6 test, but no cylinder Jan 20, 2013 · 1999 - 2003 7. Swapped the plugs, still a misfire. Hello, new to the forum. 1990 Ford Thunderbird 3. I started by replacing the spark plugs and checked the ohm levels on each of the the coil packs and everything seems fine but the truck is still misfiring. 2. No codes are being thrown. Dec 8, 2014 · Dec 23, 2014. you may have cracked a plug. g. Since you have no rich codes the PCM must "think" the fuel mixture needs to be rich. Location. Started it up on Sunday 9/5 first thing and 2 miles from camp light came on Jan 6, 2016 · 57 posts · Joined 2015. This will work with all 4. Started with 2 & 8 and ran poorly, shaking at idle and no power. Oct 14, 2022 · I am having the very same issue on my 2019 Edge SEL. Occasional misfires pass unnoticed without a code, but a steady misfire is hard to miss. Driving hills of WV, 60 mph uphill, 2,000 rpm and get engine light. 0 L with just over 100k KM (just out of warranty). Engine is 3. Certain tunes also make the "misfire" worse. 6 rough idle/ random misfire. Oct 24, 2007 · 1) Use a scan tool to read the MISFIRECNT PIDs and see which are elevated to identify the misfiring cylinder (s). 3) Change Camshaft Position Sensor. For example, if the cylinder number 1 misfires in a 4-cylinder engine, it will run only on 3 cylinders and will have the code P0301, see the animation. It never idles steady (wanders a bit) and stumbles/misfires a little bit during idle but does not display any fault codes. 7 Eco misfire/issues. Categories: OBD Codes. It's only varying by about 20-30 rpm or so, which is good. Modular V10 (6. #1 · Nov 26, 2022. 2) Change EGR Valve. The 02 sensors are original so they are most likely in need of replacement however I’d prefer to find the cause of the problem first. Then really hammer on that condition until you force the MIL to come on. 6 motor. Never had any issues, ran great till last week. Original misfire codes on right bank led to replacing the intake manifold. this time with no code. the plugs are pretty fresh, the intake was replaced and nothing appears visibly wrong or broken, I have replaced the MAS and TPS and no change. These cars are prone to misfires if the variable valve timing is malfunctioning. Apr 6, 2017 · Scanner in the video used: Actron CP9680. Now, at 40 mph, 1,500 rpm it hiccups, no engine light, and then accelerates. Run diagnostic check and subsequent code for #4 misfire. Feb 13, 2021 · 2004 - 2008 Ford F150 - Misfire, no codes - My 2006 F150, 4. This occurs with the vehicle parked inside with an ambient temp of 65 degrees. Symptoms. Mar 1, 2019. Towed 10k TT about 100 miles to 9,500 ft elevation on 9/2. Jan 19, 2012 · 7. Misfiring engine. #1 · May 4, 2015. The market is flooded with counterfeit goods, and there is a possibility you used the wrong scanner in your vehicle. P0306 Cylinder #6 Misfire. Bearing in mind that you need air, fuel and spark for combustion, the cause of a P0301 code could come from a few different sources. 2 liter gasser. , if the generated code is P0302, the number 2 indicates that cylinder number 2 has a misfire. 8 SC, 5 speed - sold. Maybe check that see if that is your issue! It may not be but check it and try it never know. The most common reason for this to happen is faulty or worn-out spark plug coil packs, especially if it’s been a while since you had a tune-up. #13. 2004 ford ranger edge 3. No change. they didn't help at all, and weren't fine-wire plugs, so I replaced them at 225,000 with NGK fine-wire plugs. 6 L started misfiring and hasn't thrown any codes for it. 4 Mar 5, 2022 · It takes a lot of misfires to set a code. They are currently at . Drove back down 100 miles home and then headed up again on Friday. Sep 13, 2014 · Hope this helps anyone, and thanks for your reply man. still idled rough. 5L SEL non turbo with misfire/stumbling issues with no engine codes (Mostly felt between 1200 - 2300 RPMs). I had no more symptoms for weeks afterward. Jan 11, 2022 · 2004 - 2008 F150 - 5. A code P0302, for example, would tell you cylinder number two is misfiring. So here is what has been checked and again its pulling no codes. Aug 25, 2021 · 2015 - 2020 Ford F150 - Rough idle, no codes showing - I am in Alabama and my truck has been running rough at idle. This is all at low rpm's and low speeds. The plugs have been replaced three times. Seems to run fine if I hammer it. There are many factors that can trigger this trouble code, including problems with the ignition system and fuel delivery, vacuum leaks, and engine mechanical issues, among others. Rich mixtures are needed when the engine is cold. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc. Dani, the misfire could also be an injector problem. Have tried 3 different obd 2 scanners. 2 posts · Joined 2020. I also cleaned the MAF sensor with specific MAF sensor cleaner! Oct 27, 2011 · When the fuel trims reach their limits then the PCM should report a DTC. Smell of unburned gas exiting the tail pipe. 2l V6 that has just over 300k miles and need some help. Bad spark plug wires are another common cause of misfires. One or more misfire codes (P0300, P0301, P0302, P0303, P0304) will be stored in the car or pickup's computer's memory. There are no codes on the computer. It almost died while idling in gear. 6 Ecoboost, with 133k miles. 0L EcoBoost. local garage had no clue. Requires a scan tool capable of reading Mode 6 data. Problem didn’t resolve. Injectors were put in last year, Warren 155/30 - buzz tested today and are good. Jul 1, 2019 · Ended up buying coils and plugs. 7) Check the Transmission and possibly replace it. by deepblue » Wed Dec 06, 2006 4:26 pm. 4L. There are many factors that can be contributing to it. while driving will cough once in a while. Feb 11, 2011 · Here are some of the most common symptoms of a misfire condition: The check engine light will be on. it only happens when hot and is really annoying. When I say wild, it never sounded like it was missing, but the RPMs would fluctuate slightly and just feel like a vibration that would come and go. Misfire stayed in cylinder 5. Jun 27, 2006 · Similar problem here except number 4 cylinder. Jun 15, 2017 · 2002 F-150 Misfiring & rough idle. Sep 2, 2015 · Re: Rough Idle/Misfiring - HELP! (2006 F150 5. Doesn't quite match, but in the window perhaps. wont fire on cylinder 4 and is spotty on 5 and 6. This is common on all fords. Since buying this car, approx 166K miles, I had the following problems and resolved them as follows: -P1233 code: Replaced FPDM, didn't fix it, so I did an electrical test and repaired a broken wire and that fixed that problem. What Are The Causes Of An Engine Misfire? The most common causes of engine misfires are bad ignition coils or failed spark plugs. Heat soak, high IAT2, poor fuel quality, etc. Sep 16, 2018 · 4’th Cylinder. Replaced plugs and coil. 4 stalls and has no codes - i have a 2004 f150 with a 5. #6. 6L Misfire - No codes - Maybe someone can help me figure out the issue a little bit more in depth than the local dealership did with my truck I am having some issues with my truck misfiring so I took it to the place that I knew someone would know best; the Feb 3, 2012 · Re: engine misfire, rough idle. I recently picked up a 2wd 2002 F-150 with a 4. Good luck and keep us updated~. Also make sure that the correct viscosity of oil was put in as the wrong "weight" of oil can make the VVT malfunction. I developed a miss at 99K miles, especialy under the load, no check light. Ford constantly searches for timing at idle. Save Share. The next morning on the way to work Jun 29, 2021 · 193 posts · Joined 2013. Some misfire complaints are a flashing check engine light, and a P0300 to P0312 diagnostic trouble code (DTC) indicates that one or more cylinders are misfiring. Misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. I replaced the plugs, one was realy bad and no more miss, all the coils are still OK at 116K. P0303 Cylinder #3 Misfire. So I observed the airflow and found at idle when under no load (not in gear) the gm/s was about 3. I have been tuned for almost 10k kms Dec 19, 2013 · The check engine light flashes on and off when the engine is experiencing the misfire. . 3L cold misfire/rough idle. Drove around Saturday no issues. Came out after the Game and when I started up the engine was misfiring pretty good. Changed the coils first, Misfire went away. About six months ago I was stopped in a drive-through and the car seemed like it started to misfire. Dec 20, 2015 · 2011+ Engine Related Questions - 5. I have replaced the ignition col, cam sensor, crank sensor, computer, andevery other sensor this truck has. Scanner shows no misfire at idle or steady throttle, but after getting on the throttle after letting off like slowing down for A turn then accelerating to pick up speed it has random misfires Jan 26, 2021 · 07:00 AM. 2004 F150 240K miles, all new timing components, new plugs 546's, older msd cops. Feels like I am running over a "rumble strip". None have ever popped up. Lack of power upon acceleration. 1999 Mercury Mountaineer 5. 2004 - 2008 F150 - 2004 5. New plugs, wires, filters, etc. 4 Triniton. Feb 20, 2017 · I started having a misfire about 6 months ago. The check engine light stays on all the time, but flashes when idliing. #1 · Jan 6, 2016. Plug looked fine. 5 "Without data, all you have is an opinion!" Sep 18, 2017 · 2009 - 2014 Ford F150 - 2014 F150 5. The CEL is on and I’m getting P1131, P1151, P0316, P0305 and an occasional P0301. Idle slowly got worse, misfire codes slowly became more common. It does it consistantly. 0 misfires. Nov 20, 2023 · Silver549 Discussion starter. Then I started noticing the misfire codes and rough idle improved right after a fresh Feb 7, 2021 · 2004 Escape 3. 8l) - early 99 v10 stutter/miss, no codes - got an early 99 v10 (2v for those of you who are going to ask me) manual trans truck with Feb 4, 2009 · 2004 Ranger misfire. First code was for #10, then it cleared on its own after a couple days. Any tech that works for Ford and does a lot of drivability diag should know to check that. Rough idle and may stall. Snap throttle momentarily brings the LTFT down to the 6-7% range FWIW. Apr 17, 2021 · Heres the background: 2015 F250 6. Posted January 22, 2017. Let me give you a 101 on misfires with those codes. P0303 and P0304: Similarly, these codes diagnose misfires in Cylinder 3 and Cylinder 4 respectively. You will often find this code together with another code of the specific cylinder the misfire occurred on. When most people hear the term ignition misfire, they think of worn-out ignition spark plugs. 8l) - Misfire, Codes P0304, P0308, P0118 - Ok. Get a scan tool on the car if you have one. My 2000 F350 V10 started acting like it was either misfiring or there was a shutter in the tranny (between 40-50mph). 7468 posts · Joined 2007. Lots of threads on misfires but nothing particularly relevant to my situation. My truck is a 2000 F-150 4x4 auto trans, 4. Nov 20, 2020 · Ecoboosts have a history of having some slight misfires at idle due to it being direct injected. Jan 7, 2023 · The code P0300 indicates there are repetitive misfires on one or more cylinders in your car. 0 Misfiring no Codes - Drove to Hockey last night and everything was working fine. by thefordmaniac » Mon Feb 06, 2012 1:47 am. It feels like shaking and sputtering. Injector has been cleaned. Received 882 Likes on 732 Posts. Feb 8, 2018 · I found that the fuel pump was under the cab and it was not covered what so ever so it was all corrided and destroyed causing my new engine to idle in correct and die after a few mins of running. So I've had a 2013 f150 for about 6 months now. How to find a misfire without a check engine light using mode 6 OBDII scanner. it doesn’t seem to do this May 29, 2016 · NO MIL, but I pull a **pending** P0102 (MAF low output. 56, and . Feb 10, 2022 · Idle seemed to improve. Jan 18, 2014 · Jun 30, 2014. Get a Denso (or Motorcraft) for troubleshooting a COP, Rock Auto - $24, ebay - $27. Should see 50-55 PSI of fuel pressure. Vehicle: 1999 E350 v10 2v During the summer (in Arizona) while driving on the highway under load at 70mph with the AC on in 110F heat, the motor lost power, all the lights came on, and Jul 31, 2011 · P0304 Cylinder #4 Misfire. 2018 Edge - Misfire when cold, no CEL. 54. Pulled the code with my scanner which was P0304 (misfire in #4 cylinder). When running the the mode 06 test on the forscan tool it shows that it misfires on every cylinder but mostly on Oct 24, 2007 · misfire no codes 5. You likely have some other problem like an intermittent vacuum leak, bad COP, or plug. Plugs have been gapped at . 6L V8, 5. Idles nice with very infrequent miss at idle. In any event, a P0301 code is serious and shouldn't be put off. The misfire occurs during idle and low to medium rpm load, but not during WOT. Runs rough at the coast / power point. 4 3v Rough idle, Stalls and Feb 16, 2024 · The answer is “yes” to both questions. P0304 is a cylinder-specific misfire code, meaning only your Fusion’s fourth cylinder has a misfire. I just bought it used about 1500 miles ago. 2) Identify the driving condition that exhibits the concern. Apr 27, 2012 · Rough Idle problem finally fixed! My truck has idled rough for the past eight months. if it changes then keep goingif it doesnt change you found the cylinder. 5. Jun 16, 2012 · Like. Car has run great for the last 23,000 miles. Compression Check - Around 160psi across all cylinders. Jun 21, 2011 · 2004 - 2008 Ford F150 - 5. Sep 9, 2021 · Maybe. Ignition System Problems. no light or code. If you don't know the last time the fuel filter was changed do that too. Tried fuel additives. Sep 26, 2022 · Replied by SimplyCircuits on topic HELP! 1999 Ford Ranger 3. Misfire still there, especially 40-50 MPH. Pressure good in cylinder, no oil lost. One or more misfire codes (P0300-P0306) will be stored in your Ford's PCM memory. Idles great smooth. Snapshot--After a few minutes of idling mode 6 shows bank 1 misfire cyl 1- 21, cyl 2- 56, cyl 3- 55, cyl 4- 49, cyl 5-8 0-1 misfire. 6) Change Plug wires. Compression - good. You could pull the entire spark plug out of the block at idle and it wouldn't throw a code. 0 back in August, 180k miles on it. The idle looks stable. Conditions that cause misfires: Warm engine. 60 with similar if not identical results. I have attached the screen shot of the test for bank 1 & 2 . New Fuel Filter. Problem: When cold starting the engine, it has a misfire for about 10 minutes or so when the block heater is not plugged in. #4 · Jun 30, 2021. Aug 25, 2020 · Also, very rarely, when idling and at cruising speed the engine will have a little hiccup that again feels like a misfire. Some possible explanations include issues with the fuel system, such as a clogged fuel filter or dirty fuel injectors, as well as problems with the ignition system, such as faulty spark plugs or ignition coils. 0 Rough Idle Fixed (not spark plug related) - Hi all, first post here but thought this may possibly help some folks out having rough idle issues so signed up to post this. Speed range of 40 to 60 mph (low RPMs) Slowly pressing on accelerator, trying to increase speed. 4L misfire rough idle - OK i need some help. It has a very distinct misfire from around 1,000 rpm and smooths out between 1,500 & 2,000 rpm, the idle rpm occasionally Jan 28, 2021 · Rough Idle & Misfire No Codes - 2007 Ford F150 STX 4. The rough idle improve a little but not completely. 4) Fix the fuel pump. -mike. Noticed that it also cut off my A/C and started blowing hot air since it was about 94 degrees out. Oct 13, 2017 · Received 15 Likes on 7 Posts. P0300 Random Cylinder Misfire. You will need to identify the problem cylinder using a scanner. If you have a fuel pressure test kit get a fuel pressure reading at the fuel rail schrader valve with the system primed and key ON. I used an Innova Can OBD2 Scan Tool and did not get any DTC codes. I have a 2016 2. wellthen unplug each coil or injector and listen to the engine idle. So I've been chasing a rough idle on my 2010 Fusion since about 205,000 miles. Within the first 3,000 miles I installed a Shelby throttle body, Cold Air intake, Summit Coils and better plugs. Also replaced the MAF. The X is replaced with the cylinder number where the cylinder misfire occurs; for example P0301 is a cylinder 1 misfire. Dec 13, 2019 · Modular V10 (6. I have put it on a code reader and it said misfire on clylinders 1 and 2 I believe. Lopey Idle at the lights but I made it home. This records the the monitors for any concerns that may have happened. P0302 Cylinder #2 Misfire. Although your engine idling rough is a sure sign of a problem, the Engine Control Module might not be why you do not see trouble codes from your scanner. Fires right up, idles 10 minutes, go for drive, fat and happy for about 500 yards, then no power below 3000 rpm. If I give it 100% throttle, it just bogs down. If you want a professional scanner I suggest searching ebay for a Snap-On, Mac or Ford dealer unit. 4L v8) by 3FOX » Wed Sep 02, 2015 5:14 am. The crank sensor measures the rotation time every time a cylinder is sparked. Hey a little input would be nice,, I've got a 99 4. The Calibration can only do so much after idling that long. Dec 6, 2006 · PLEASE HELP: 4. Everything was double checked, no misfires but now a knock sensor code is showing but the truck is running just fine. ) NOTE: this is the first and only code that it has ever thrown) disconnect, reconnect MAF. As I do with all vehicles I purchase, I went to do a tune up on it. 0, Strange Misfire. History: I purchased the vehicle 1 Oct 24, 2009 · Transmission. One day last week I stopped by a Texaco and got gas, 87 octane. Clear code (per FORD factory manual recommendation), clear PCM LTFT tables, etc. There are a few possibilities to be sure, but fuel pressure is one of those easy things to check that should be ruled in or out early in the troubleshooting process. I forget the code number but 3 mechanics who ran the disagnostic all say #4 cylinder misfiring. #8 · Jun 17, 2012. replaced the coils a second time. Apr 26, 2021 · Code P0300 stands for “Random or Multiple Cylinder Misfire Detected. last couple of times it has been a coil But I have always got a check engine light. 0 Ecoboost SEL AWD 5,400 miles. Dec 25, 2011 · Received 2 Likes on 2 Posts. Code reader says Dec 27, 2016 · The rule of thumb is usually the volume of the engine in L. 1997 - 2003 Ford F150 - 2002 4. 3L Power Stroke Diesel - No 8 Cylinder Misfire - I just bought an early build '99 F-350 with 250,000 miles on it. Truck runs rough at idle to the point I can feel it sitting in drivers seat. #1. If the last digit of the trouble code is not zero, e. misfire with no light. Then 2 months later, #8 threw a code, and then cleared out its own. 05:34 PM. The truck is misfiring, especially on load, around 1800 rpm 45 MPH, and every time I gun it. Napa, CA. 4 and it has been stalling when coming to a stop. Sep 5, 2017 · help plz 2004 F150 bank 1 misfire - no code. So after spending a few thousand dollars on my used Ford Taurus (worth a few thousand dollars) my car will be like brand new. My truck just started this After startup and driving for a bit my truck will suddenly idle rough and missfire (no codes). Plug wires have been replaced as have the plugs. History: About a month ago I had the service engine soon light come on and it was for a misfire on cylinder 1. Jun 3, 2020 · BAD SPARK PLUG WIRES. 8gm/s with a steady rpm of about 630 and the STFT was about 2-3. I have a 98 ranger 4. If the block heater is plugged in there is very little or no misfire at all. fx bv kj qz ya xy ks zy zh iu