2017 jeep wrangler cylinder 2 misfire

February 13, 2023 by Jason. P0302 in the Jeep Cherokee is a common OBD II trouble code. It indicates that your vehicle's second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it's bad enough to cause your Cherokee's check engine light to come on, you shouldn't drive your vehicle at all.

I brought it into a shop where they diagnosed a random cylinder 6 misfire and replaced cylinder 6 ignition coil and all of the spark plugs. Jeep ran okay for a day or two and the issue came back. I brought it back to the shop where they then quoted me $4600 to replace the left cylinder head. The justification was a failed compression test, and ...20 posts · Joined 2017 ... Hello guys. I have a 2007 jeep patriot limited 4x4 2.4L with 145K on it a little while ago code p0302 came up its been on & off I had replaced the spark plugs not to long ago but I will be replacing cylinder#2 just for the case I replaced the ignition coil 4 days ago but the light again comes and goesThe P0303 code means that the 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". User Submitted Video.Ideas on misfire at cold start today. Went out this am and started my 2012 with 135k. Never had an issue with it. I could feel it idling very rough and revved it and it went away, has never threw a misfire code. Jscan showed a little over 200 misfires on cylinder 5. I monitor it alot over the past few years, cylinder 5 has normally had a few ...46687 posts · Joined 2012. #2 · Jun 7, 2021. Welcome to the Forum, from Cave Creek AZ. Yep, that will cost you about $3,400. This happened to my Grandsons 2016 JKUHR, with 40, 000 miles on it. I have also heard of the 2017, and 2018's with the same problem. It's even been seen on the JL updated PUG 3.6.1 post · Joined 2017. #1 · Mar 4, 2017. I changed my spark plugs on my 2012 wrangler and ended up with a cylinder 6 misfire that I can't get rid of. I tried replacing the coil and switched the new plug with a new new plug and switched plugs and coils around and still have that misfire on 6. My left head was already changed a long time ago as ...

NOTE: This information applies to vehicles equipped with a 3.9 liter, 5.2 liter, or 5.9 liter engine. AB models will be added later (new parts required). SYMPTOM/CONDITION: Some vehicles may exhibit one or more of the following: * Spark knock complaints when the vehicle is under load. * Various single cylinder misfire (1, 3, 7), especially 5 ...Use a screw driver to listen to the injectors. Place the tip of the screw driver on the #1 injector and place your ear on the handle and listen for the tapping noise in the injector. This is the injector opening and closing. Now do the same on a couple others and compare the tapping noise.2004 cylinder 3 misfire. ok so from what I have read this is a very common problem. but I have tried all the normal fixes and still nothing Im not sure what else to check and I figured who better to ask then the jeep fanatics! its a 2004 grand Cherokee with a cylinder 3 misfire I have changed the plugs the coil rail and the injector on cylinder 3.1. If vehicle exhibits a rough idle, and if a misfire of cylinder #3 is observed following a 10 to 20 minute hot soak, perform the Repair Procedure. PARTS REQUIRED: Qty. Part No. Description 1 56028371AA Ignition Wire Shield REPAIR PROCEDURE: 1. Cut insulator sleeve, p/n 56028371AA, to make two (2) insulator sleeves about 25-30 mm (1 in.) in ...The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video,...Update October 14, 2016. Misfire came back so I removed the heads again to check for the cause of misfire. Turned out that piston #4 was slamming for God knows how long that the compression rings were locked in their valleys. Took off all Pistons, checked the honing jobs on the cylinders and found out that all were ok, except #4, it was faded ...MacK Discussion starter. 4967 posts · Joined 2007. #1 · Sep 17, 2018. Dropped the Jeep off at the dealer today for p0305 (cylinder 5 misfire). They pulled the plugs and they looked fine. They pulled the coil pack (sorry if this is wrong name, I'm not technical) and they said it tested good. They needed further permission to dig deeper …

Oct 6, 2016 · 6) Performed a leak down test to all cylinders, #1 leaked just a hair faster than the others, again not enough to call it bad. 7) Replaced both valve springs for cylinder #1. Drove Jeep with same result as above. 8) Replaced the intake/exhaust manifold gasket, maybe it had a leak I wasn't detecting.1250 posts · Joined 2014. #2 · Jul 9, 2015. Misfires are caused by loss of spark, fuel, or compression. Sounds like you've taken care of spark and fuel unless you have a primary wiring issue with your ignition circuit or fuel injector. It's unlikely though being you have have two misfires instead of just one and the second one started later.2009 Jeep Wrangler jku 3.8L misfire code JA: Have you seen the misfire code before? ... My situation on my 2017 amg gle 63s coupe is four fault codes. 1.p030285 cylinder 2 2.p030685 cylinder 6 3.p30885 ... i have a 2005 f150 5.4 with 2 dtc codes p0302 and p1000 p0302 is cylinder #2 misfire but i cant find p1000 and was wondering if you …Apr 15, 2019 · 3. Gender: Male. 2014 jeep wrangler 3.6. Awrench said: ↑. thats a common code P0302 a misfire could be either ignition, fuel, mechanical. 1st - counter intuitive #2 cylinder is driver side front plug.2016 Grand Cherokee misfire. Looking for suggestions because my dealership can't figure it out. My 2016 registers a misfire. The dealer has replaced the upper and lower oxygen sensors and both fuel pumps. Today they found the engine was over 2 quarts low on oil. They did the last oil change 2500 miles ago and insist they filled it the entire way.

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P0302 cylinder 2 misfire. With only 42,000 miles i am getting this code. I've already replaced the coil packs and spark plugs. Ran good for a couple of hours but code came back. So I've been disconnecting the battery terminal to reset the code and works well for a bit with no idling problems.So, long and convoluted story: For a while, my check engine light would come on, and then go away after a while. My OBDII+Torque read P0300 and P0306. So Random/Multiple Misfires, and Cylinder 6 Misfire. I went ahead and changed out all the plugs and wires, as well as the coil pack. The light went away for a couple of weeks.Jul 16, 2021 · This morning CEL came on for the fist time in 58k miles, whole jeep was shaking on the highway and also when parked. scanner is showing code P0306, cylinder 6 misfire. 2 weeks ago I installed K&N intake, not sure if this could have been the cause but I have not had any issues until now. my...I have a 2013 jku Sahara with 80000 miles. I started to have a p2314 code (ignition coil E sec circ)come up with also a p0305 code (cylinder #5 misfire). Took my Jeep to a local repair shop he changed spark plugs and also injectors got it back ran good for two days then started again same codes... took it back he called a friend that works at a ...I have a 2008 JK with 162K and Received a flashing engine light and rough running motor while driving with cruise control on @70 mph on the freeway. Used my OBDII to read the Cylinder 5 misfire code. Code clears but comes back. Rough running motor doesnt go away. I went down the line and replaced the plugs and plug wires. no change.I brought it into a shop where they diagnosed a random cylinder 6 misfire and replaced cylinder 6 ignition coil and all of the spark plugs. Jeep ran okay for a day or two and the issue came back. I brought it back to the shop where they then quoted me $4600 to replace the left cylinder head. The justification was a failed compression test, and ...

2 posts · Joined 2018. #1 · Apr 20, 2018. Hey guys, new to this forum but figured I'd try asking here for any opinions before I go any further. So my jeep is currently experiencing a misfire in Cylinder 3. I had thought I had found the issue, a bad fuel injector/connector. However, I've since swapped out both the injector and connector (twice ...The EGR cylinder portals clog and cause all of the EGR gases to be dumped into one cylinder, resulting in a misfire. Use caution when testing high-intensity spark. 50,000-volts can be harmful or even fatal in extreme circumstances. When testing high-intensity spark, keep it away from fuel sources to avoid catastrophe.The fact that its also a number 2 cylinder could be just a coincidence (25% chance), or if something else in that area caused it. (sold) 2019 Jeep Cherokee Trailhawk Elite 2.0L, Factory Tow, Sunroof, Technology group, 2" CBF Performance Lift and Centering Kit, 265/70/17 Nitto Ridge Grapplers, RRO Super Sliders, Frog Fab winch bumper, Warn VR ...P0305 cyl 5 misfire )=. Coming home from work, at a light felt a weird shutter in the motor. Light turned green went to accelerate and that was it, CEL came on P0305 cylinder 5 misfire came up on the dash. Limped the truck home , was only a short distance away. Kept my eye on oil presure gauge and temp gauge which was fine.Jan 5, 2021 · A few details. - 160k miles. - Idles around 800rpm. - About 10.5mpg (4:10s, 33's, Dana 44 rear) Not sure if this helps much but what the heck. - Replaced Coil. - Replaced spark plugs with some that Jerry recommended on these forums-- Gapped correctly. - Replaced Fuel injector on cylinder 2. - CEL goes away along with misfire while running ...Jul 16, 2021 · This morning CEL came on for the fist time in 58k miles, whole jeep was shaking on the highway and also when parked. scanner is showing code P0306, cylinder 6 misfire. 2 weeks ago I installed K&N intake, not sure if this could have been the cause but I have not had any issues until now. my...After looking for a few months, we came across a great deal on a super clean 2012 3.6L 4x4 with 71,000 miles and fully loaded with panoramic sunroof and leather, etc. at a good price. I was hesitant to buy a 2011-2012 due to the common LH Cylinder head issue with the 3.6L. I had read that Chrysler made it right by extending the factory warranty ...www.Garagecouple.comBe sure to check out all 4 videos in this series to watch me diagnose this misfire issue:Episode 1: https://youtu.be/tQCg-jDuzlcEpisode 2...

97 4.0L Misfire Cylinder 6. Hi Everyone! I decided to buy my first jeep (97 Cherokee sport 4.0L) for winter fun and one of the first things I did was give it a quick tune up due to a rough idle I had noticed when the vehicle was warmed up. I did the following: After all changes are completed, the jeep ran great, but the rough idle continued.

2 posts · Joined 2022. #4 · Apr 25, 2022. My 2018 Wrangler which I bought new and always did the maintenance on started throwing the #2 misfire code. I took it back to the dealer because I knew the possibility of major problems receiving that code and it is still covered under the power train warranty.When I see the quality of aftermarket I think OEM. Fuel injectors do cause misfires (i had a bad one in my jeep when i brought it home), but spark plugs and coils are way more common. provided the engine compression is ok, as stated above.... I had 2 or 3 injectors fail and start throwing errors on my 4.7.Causes. Possible causes of OBD code P0301 Jeep. A code P0301 Jeep may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor (s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter (s) Running out of fuel Poor compression Defective computer.One of the most common codes associated with a misfire is the P0306 code, which indicates a misfire in cylinder 6. This code can be triggered by a variety of issues, including faulty spark plugs or ignition coils, low fuel pressure, or a vacuum leak. To troubleshoot the P0306 code, it's important to understand how a cylinder misfire occurs.It sounds like a defective cylinder head. The heads have been updated, but we have had members with as new as a 2017 with the failure. Take it into your Dealer.I'm having a problem with multiple cylinder misfire's. I have change the power pack, wires, spark plugs, head gasket, intake gasket, PCV valves, EGR, I have checked the wiring connections, I have checked the injectors and wiring, no matter what I change as soon as I pull out of the driveway and get up to 20 miles Per hour I get the check engine light flashing and the code is multiple ...2 posts · Joined 2022. #4 · Apr 25, 2022. My 2018 Wrangler which I bought new and always did the maintenance on started throwing the #2 misfire code. I took it back to the dealer because I knew the possibility of major problems receiving that code and it is still covered under the power train warranty.

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The 2017 Jeep Wrangler has 1 problems reported for cylinder 2 misfire. Average failure mileage is 75,400 miles.Feb 8, 2016. open circuit can also be loose connection on the injector harness - solved with replacement... from a service standpoint (unless like a broken wire jumps out at ya) better to just replace the 40.00 injector than clear codes and "jiggle the wires" and see if code comes back later - or spend a half hour of testing the injector at 70 ...The check engine light came on which turned out to be a P0300 code (Random/Multiple Cylinder Misfire Detected) The car runs fine. The code popped up again a couple of weeks later and I again cleared the code. Truck still runs fine. One of the local dealers wants $169.00 to diagnose (hook it up to a computer) the code and let me know …Jeep Wrangler: P0202 Symptoms. This code is usually accompanied by noticeable symptoms. Here are the most common ones: Misfire - If your Wrangler's fuel injector is not getting the right amount of fuel into cylinder two, it'll misfire. A misfire will hurt the acceleration of the vehicle and cause fuel mileage to suffer.28 posts · Joined 2016. #1 · Apr 1, 2017. Hello all, Recently, I've been having a misfire code appear in my 2000 jeep wrangler sahara edition, 4.0 liter inline 6. The code comes up with a P0300 which is Random Multiple Cylinder Misfire. On occasion, it will have two pending codes (i.e. P0302, P0305). I've replaced the ignition coil with a new ...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.#2 · May 23, 2017. HappyTrails said: Does anyone have any ideas on what next to look at? When a Misfire is detected for a particular cylinder, the PCM will shut down that …Fountain Autoplex Call or Text (816) 551-2335 View this Jeep Wrangler Unlimited Sport NOW! Address: 3923 N Oak Trafficway, Kansas City, MO 64116 This SUV has a CLEAN TITLE plus this SUV was driven only 10,329 miles/year, currently at 92,960 miles. You can expect increased fuel mileage with the manual transmission and this smooth 6 Cylinder engine is ideal for performance and fuel economy.258 posts · Joined 2016. #3 · Apr 1, 2018. The p0302, specially if it has happened more than once and regularly is typically a sign that it has the infamous head issue. Mine happened at 37k miles, took it in. Dealership kept it for a day and said that it did have the head issue and replaced the head.Sep 11, 2020 · If you're getting the misfire in the same cylinder and only that cylinder, with a code for valves aslo, that is not sounding good.... And do you remember if the valve code was an actual intake/exhaust valve, cylinder valve? Or something less serious like an EGR valve or Purge Valve.... ....something with the VVT or VVL could cause the valve ...2001 Jeep Wrangler 2.5L 4-Cylinder 210,000 miles Jeep starts, idles rough, continuous cylinder #2 and #3 misfire, shutters when accelerating with a loss of power. The Jeep does not shutter as much when the rpm is kept about 3000 or higher. No other codes are generated. There is no loss of coolant, and the smoke out the exhaust pipe is normal.P0300 random multiple misfire. P0301 misfire #1. P0302 misfire #2. P0303 misfire #3. P0304 misfire #4. P0463 fuel level sensor high. P0456 evap small leak. Since you are getting multiple misfires start with a fuel pressure check should be around 48psi at idle and hold that for 3 minutes after the jeep is turned off. ….

Sep 11, 2020 · If you're getting the misfire in the same cylinder and only that cylinder, with a code for valves aslo, that is not sounding good.... And do you remember if the valve code was an actual intake/exhaust valve, cylinder valve? Or something less serious like an EGR valve or Purge Valve.... ....something with the VVT or VVL could cause the valve ...Feb 1, 2024 ... tag along with me, my 1st rodeo diagnosing a misfire on a dodge durango 3.6 with this particular fix. factory service data info source, ...If you do hook it up to your misfiring cylinder and make sure the injector is getting a signal. It could be a few other things but fuel and ignition are the first things to check. 2013 JKU Rubicon - Commando and 71 Jeep CJ5 (pretty much stock) Teraflex suspension 2.5" lift, Falcon 2.1 shocks, Goodyear Wrangler MTR Kevlar 35 x 12.5 x 17, Warn ...P0302 definition: Cylinder 2 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 ...No codes in the last couple of days. Only time will tell, but I think I may have resolved my P0301 misfire cylinder 1 issue. I do plan on inspecting and replacing the spark plugs just to be safe, but I had replaced them 7 months ago. Thank you Jeep Forum for helping less experienced Jeepers trouble shoot and making informed decisions!Cannot Solve Misfire. I have a 2013 JKU, manual tranny, just over 120k miles, with the 3.6 engine. TL : DR: codes for steady cyl 5 misfire, occasional code for random misfire, rough idle, flashing check engine light, have replaced all plugs, coils, injector on cyl 5, pcv valve, checked cat for clogs, still getting misfire, need help.A misfire occurs when the combustion process within a specific cylinder fails to ignite properly or completely. This disrupts the engine's normal operating rhythm, …If you're getting the misfire in the same cylinder and only that cylinder, with a code for valves aslo, that is not sounding good.... And do you remember if the valve … 2017 jeep wrangler cylinder 2 misfire, 2 posts · Joined 2012. #1 · Jul 29, 2012. OK so I just bought a 2001 wrangler 4.0L Automatic with 135k miles and drove and sounded great during the test drive as soon as I drove it off the lot the next day I was driving about 65mph and the check engine light started flashing I went and got the codes checked and I got random misfire and then a ..., The fact that its also a number 2 cylinder could be just a coincidence (25% chance), or if something else in that area caused it. (sold) 2019 Jeep Cherokee Trailhawk Elite 2.0L, Factory Tow, Sunroof, Technology group, 2" CBF Performance Lift and Centering Kit, 265/70/17 Nitto Ridge Grapplers, RRO Super Sliders, Frog Fab winch bumper, Warn VR ..., 258 posts · Joined 2016. #3 · Apr 1, 2018. The p0302, specially if it has happened more than once and regularly is typically a sign that it has the infamous head issue. Mine happened at 37k miles, took it in. Dealership kept it for a day and said that it did have the head issue and replaced the head., 2018+ Jeep Wrangler Forums (JL / JLU) - Rubicon, Sahara, Sport, Unlimited - JLwranglerforums.com, Diagnostic trouble code (DTC) P0303 stands for "Cylinder 3 Misfire Detected.". The code indicates that the powertrain control module (PCM), has counted enough misfire events on cylinder 3 to store the misfire code for that cylinder. Cylinder number 3 would refer to the third cylinder as the cylinders are numbered., This morning CEL came on for the fist time in 58k miles, whole jeep was shaking on the highway and also when parked. scanner is showing code P0306, cylinder 6 misfire. 2 weeks ago I installed K&N intake, ..., Use a screw driver to listen to the injectors. Place the tip of the screw driver on the #1 injector and place your ear on the handle and listen for the tapping noise in the injector. This is the injector opening and closing. Now do the same on a couple others and compare the tapping noise., Greetings all, My question is if anyone has experienced the following, and what the solution was. I am experiencing a reoccurring misfire (P0301) on my 2017 w/ the 2.4L. First time it happened, pulled the cylinder 1 plug and it was clearly fouled, which I thought was odd since it only had 55k, but I replaced it anyways, dielectric greased the ..., 46687 posts · Joined 2012. #2 · Jun 7, 2021. Welcome to the Forum, from Cave Creek AZ. Yep, that will cost you about $3,400. This happened to my Grandsons 2016 JKUHR, with 40, 000 miles on it. I have also heard of the 2017, and 2018's with the same problem. It's even been seen on the JL updated PUG 3.6., 2016 Jeep Wrangler. Asked by jamesken421 in Silsbee, TX on July 06, 2016. My wrangler has 1700 miles on it and my check engine light has turned on 5 times. Each time I've taken it in the dealership I bought it from says they can't fix it, after they took my jeep apart multiple times. The code that is being thrown is a random engine misfire and ..., A month ago the engine light came on and I got codes P0302 and P0302pd (cylinder 2 misfire). No symptoms of any kind, car drives just fine. ... Update: After driving about a week, no signs of the misfire/CEL and the Jeep has been driving very well, peppy off the line. ... How long? I have a 2017 Jeep Wrangler that has been sitting at the ..., A couple of ideas: 1.) If you are getting a code that the #1 cylinder is misfiring, swap the #1 coil pack with a different cylinder. If the coil pack is bad, the misfire will change to the other cylinder. Do the same with the fuel injector, (but not at the same time. To troubleshoot a problem change one thing at a time)., 56 posts · Joined 2008. #1 · Dec 12, 2009. Engine code says random misfires of the #2 and #5 cylinders. Sometimes the engine is a little rough and sometimes it has virtually no power. This started about four days ago. 99800 miles. I changed the spark plugs (NGK's for the NGK's already there). This didn't work but I needed new plugs anyway., P0302 code means "Cylinder 2 Misfire Detected". This can happen for various reasons. In your case, a mechanic will need to determine the cause of the activated code. A motorist is sure to have their fair share of car problems during their lifetime. A check engine light conjures up images of costly repairs and car downtime for most drivers., Hey y'all, this morning about a quarter mile from my house the engine in my 2017 JK started riding pretty rough and threw codes P0302 (cylinder misfire) and P0202 (injector circuit malfunction). Obviously the check engine light started flashing so I turned around and drove back., 1723 posts · Joined 2014. #6 · Jun 4, 2015. The other interesting thing is that the cylinders 2-4-6 all have essentially the same number of misfires when this happens. The last time when the CEL flashed it was 161 misfires on each of those cylinders and 0-1 on the other three., 2012-2018 Jeep Wrangler JK (Sport, Freedom, Sahara, Unlimited Sahara, Rubicon etc. basically everything) ... Great info I have a cylinder 2 misfire on ny 2017 JGC 3.6l. Are you saying the # 2 should be easier to get to because the 2017 onward the intake is on the driver side now? Thanks., Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230. Check Engine Light. P0304. trouble codes. No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0304 code. SCHEDULE P0304 DIAGNOSTIC. Get a $50 credit for the follow-up repair., P0304 is a cylinder-specific misfire code, meaning only your Cherokee's fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder's location. On "V" configuration engines, it'll usually be the second cylinder on the head further away from the front of the engine., bounderx2. 12 posts · Joined 2015. #26 · Dec 13, 2016. I have a 2002 Jeep Wrangler 4.0, over the past few month the jeep has had multiple miss fire codes. Some times 0300, clear the code next time 0300, 0305 & 0306, clear the codes & sometimes 0300,0301,034,0305 & 0306 all at the same time then the jeep goes into limp mode., #2 · May 23, 2017. HappyTrails said: Does anyone have any ideas on what next to look at? When a Misfire is detected for a particular cylinder, the PCM will shut down that …, Dunkin' Donuts should have a corner on the breakfast market—but it made a menu misfire. American consumers love breakfast, and they increasingly want access to it all the time. Acc..., SCA's Biggest selection🥇 of repairable, salvage & wrecked Jeep cars for sale⚡️300 000+ vehicles⚡️150+ weekly live auctions >> FREE registration!, Jeep dealer has not been able to fix. He had moved coils and injectors around . Still getting here intermittent cylinder 2 misfire also rough idle . Only has 50000 miles on it. 3.6 engine. Has anyone else had similar similar problem or any suggestion ., Greetings all, My question is if anyone has experienced the following, and what the solution was. I am experiencing a reoccurring misfire (P0301) on my 2017 w/ the 2.4L. First time it happened, pulled the cylinder 1 plug and it was clearly fouled, which I thought was odd since it only had 55k, but I replaced it anyways, dielectric greased the ..., An engine misfire is an event that occurs when one or more of the engine's cylinders fail to ignite the air/fuel mixture during the combustion cycle. This can lead to a variety of engine performance issues and can even lead to serious engine damage if left untreated. For complete cylinder combustion to occur, the engine needs three important ..., Bought a new to me 2017 JKUR about 5 weeks ago and 1 week ago, you guessed it, #2 misfire… it's at the dealer now getting replaced, at lest they are covering it. 67000 miles. 2017 Jeep Wrangler Unlimited Rubicon, TSB #18-008-14 REV. A is for "Flash: MIL Illumination P0300- Multiple Cylinder Misfire and/or P0573- Brake Switch 1. Stuck Off" I have never had this issue. But within 50 miles of picking up my Jeep I get P0302 cylinder 2 misfire detected. TSB #21-004-15 is for "Flash: 845RE Transmission Shift Enhancements" which is also supposed to ocrrect ..., 97 4.0L Misfire Cylinder 6. Hi Everyone! I decided to buy my first jeep (97 Cherokee sport 4.0L) for winter fun and one of the first things I did was give it a quick tune up due to a rough idle I had noticed when the vehicle was warmed up. I did the following: After all changes are completed, the jeep ran great, but the rough idle continued., Cylinder 1 misfire, please help. Last week my girls jeep threw a check engine light, had it scanned misfire cylinder 1. Jeep is a 99 wrangler, 5 speed, 6 cylinder, 154k on it. About 45 minutes later she tries to start it and it stumbled she reved it to 1500 for 45 seconds and bang! It was fine, been good for 2 days., So my 2015 Wrangler JKU Sahara with about 55k on it had the CEL go on and off a couple times (on for a few days, then off for awhile, then on, etc.) for finally staying on. I checked the code and got the common P0302 cylinder 2 misfire although the engine had felt like it was running perfectly. This started in February., cold miss could be a ton of things. easiest fix: 1) 2 bottles of techron in fuel tank to clean injectors. 2) fresh fuel filter install. you need pressure and flow to atomize fuel across an injector tip so that it will fire on a cold morning. 3) upgrade your coil to an MSD #8228. about $45 and worth every penny., 2005 TJ Rubicon auto has check engine light that comes on when driving at highway speeds. Not often but on long hauls during trips. Engine code is misfire usually cylinder 2 or 4. Engine runs well no misfire noticed. Dealer replaced PCM, all O2 sensors, plugs, plug wires, new crown OPDA 2 years ago. The check eng light problem showed up on the ...