2017 jeep wrangler cylinder 2 misfire. P0304: cylinder 4 misfire. Thread starter Jackflack44; Start date Ma...

My check engine light came on a few weeks ago and

Uses the OBD-II scanner to collect freeze frame data and trouble codes stored by the powertrain control module. Checks to see if the P0302 trouble code comes back by test driving the car. Inspects the spark plug wire for cylinder 2 for wiring that is worn out or damaged. Inspects spark plug cylinder 2 itself for excessive wear or damage.78 posts · Joined 2013. #1 · Jan 23, 2017 (Edited) (SOLVED) Code P0202: Cylinder 2 Injector Circuit Malfunction. I've been chasing a strange idle for some time now. So far, I have replaced the IAC, TPS and repaired the Plenum gasket/alumimum plenum pan. Last friday I was chasing a noisy serpentine belt (I installed the AC compressor too far ...P0303 is a cylinder-specific misfire code, meaning it’s only the third cylinder that has a misfire. Before you can diagnose P0303 in your vehicle, you need to find the third cylinder. On “V” configuration engines, it’ll usually be the second cylinder on the head closer to the front of the engine. On inline engines, the third cylinder ...88 Jeep Wrangler YJ Islander Edition AMC 4.2L 258 I6 5 Speed Manual BA-10 Holley Carburetor 2BBL 4412-5 Manual Choke It was a hard start, wouldn't run for more then a minute or two, found that I had fuel delivery problems. Inline fuel filter and 1 input 2 out, one was a return to the tank. Pinched the return, bingo runs.Nov 15, 2021 ... Any major questions you may have and you need my response right away, please use the cash app donate option. I will get message/question ...I shut the Jeep off, waited for about 30 seconds and started back up. ... Jan 2, 2017 Threads 9 Messages 2,147 Reaction score 1,303 ... cylinder 2 misfire. This was ...Jeep is a 3rd vehicle, not driven much at all at this point, here's the history: 1. Cylinder misfire codes threw for cylinder 3 (no indication or affect on driving felt, minus a drop in fuel efficiency). swapped spark plug with # 2, and the misfire went to two. replaced all 6 spark plugs with OEM replacements. misfire code stayed at 2. 2 ...Start date Aug 24, 2017; Tags cylinder misfire misfire p0306 CUT23 New Member. Joined Aug 17, 2017 Messages 13 Location New Jersey, United States. Aug 24, 2017 #1 I recently got my 2006 LJ back on the road. ... Produced from 1997-2006, many consider the Jeep Wrangler TJ to be the last true Wrangler. I started Jeep Wrangler TJ Forum to serve as ...Misfire Cylinder #2. Jump to Latest Follow ... 1993 Wrangler S 2.5L/AX-5/NP231 with SYE, Spartan locked Dana 30/Aussie locked Ford 8.8 @ 4.88, SOA lift with 2.5" OME HD springs and front Bilstein/rear Rancho shocks, Barricade 9500 winch, custom front and rear bumpers, 136 amp alternator, 35" Super Swamper LTBs. ... Jeep Wrangler Forum.P0304 is a cylinder-specific misfire code, meaning only your Wrangler'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.Anything that affects the speed of the crankshaft can cause a misfire DTC. Below is a list of things to check before parts are thrown at it, according to the factory service manual. P0300-P0306 CYLINDER MISFIRE. When Monitored: Any time the engine is running, and the adaptive numerator has been successfully updated.For now I'm am stuck driving a rental Jeep Wrangler which isn't very pleasant to drive. Sent from my iPhone using Tapatalk ... lease ended car returned January 2017 2013 Chrysler 200 S V6, 15% tint, traded in for 2015 Chrysler 200 February 2015. ... I replaced all Spark plugs and coils and I'm getting the same code cylinder 2 & 6 misfire .Try this swap spark plug wires at both ends 1 and 2 (unless you have a coil rail) Also swap injectors 1 and 3. Also swap spark plugs 1 and 4. If miss moves to 2 it was plug wire. If moves to 3 it was injector. If moves to 4 it was plug. If stays at one check compression and check injector harness with noid light. Like.I find it interesting that MOPAR switched things up over the years. - a V8 from GM, etc. has odd cylinders on the left (USA driver side) and even numbered cylinders on the right (USA passenger side) Most V6s I've dealt with follow the GM/AMC numbering with 1,3, 5 on the left, and 2, 4, 6 on the right side with number 1 front left, number 6, rear cylinder right side.Let's focus on this Variable Valve Lift (VVL) system and try to pinpoint exactly what is causing this annoying misfire on cylinder 2.Did NOT expect to find t...The No.2 misfire persisted and they have ordered one of the improved cylinder heads for my engine. Due to the large backlog of these heads, they are going to give the Jeep back to me today and call me when the head arrives. Only question I have is whether this is going to effect the engine in the long run, driving it before the head is changed.Another strange misfire issue (p0302) So I own a 2016 Cherokee Trailhawk w/3.2 V6 and it now has 80k miles on it. While is has been a decent vehicle, I have been battling a p0302 misfire code- and I have ran out of ideas and patience with this engine haha! Here is a quick rundown of what's going on. It has had a p0302 code for a while now, but ...Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...2012 Jeep Wrangler Check Engine Light at 10k miles. ... 2012 Sahara CEL-"misfire cylinder 2" My Jeep purchased in October 2011 began this malfunction at about 12k miles. I have cleared the codes and like others, the CEL promptly reappeared within a few miles. There seems to be a power loss as well as a rougher idle since this issue presented ...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.Apr 21, 2019 · Turned Jeep off right away and opened the hood, waited 5 minuets then turned her on and had no sound or issues. A couple days later the check engine light comes on. Take it to a trusted mechanic and code reads cylinder 2 misfire .PO304 Cylinder 4 Misfire Detected. PO305 Cylinder 5 Misfire Detected. PO306 Cylinder 6 Misfire Detected. It's not a fuel injector issue (it rarely is) unless you want to subscribe to the unlikeliness of a minimum of four fuel injectors failing at the same time.VinnieTheFish said: A word of advice as it relates to this issue. The problem did not affect all V6 models just those with the engine part manufactured in Mexico during a certain timeframe. The problem was a quality control issue but potentially impacted a large number of vehicles with the 3.6L Pentastar not just the GC.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.Mar 16, 2021 · 2016 wrangler 3.6l p0304 engine misfire. I wanted to start a thread because i will be attempting the repair tomorrow. I have been having my check engine light come on for about 5k miles now with the code p0304 cylinder 4 misfire, the engine is running perfectly fine no hesitation, good acceleration, idles at 680 like it should, rpm needle dosnt ...SpottyJ. 212 posts · Joined 2013. #2 · Feb 4, 2020. I have a 2013 Wrangler JK, last week, at 87K, it threw Code P0305. Started running rough at idle. Bought it dealer, after they tore it apart, they confirmed a bad head. They said new head is on back-order and could take months.1997 wrangler misfire. ... 1 post · Joined 2017 Add to quote; Only show this user #1 · Jul 9, 2017 ... A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ ...Aug 12, 2023 · I have a 2009 Jeep JK with 123K miles on it. The spark plugs, spark plug wires, and coil pack assembly were replaced in 2017. The spark plugs were again replaced in December of 2018 (crap plugs). The check engine light came on which turned out to be a P0300 code (Random/Multiple Cylinder Misfire Detected) The car runs fine.Cylinder 2 misfire. 2017 JKU. CEL came on after a routine oil change. Take it in to our mechanic and we get a tune up. Spark plugs and #2 coil get changed. ... Videos are the new way to show your Jeep Wrangler so please Submit a video or Link of your Jeep wrangler / Created by Off Road n ChillFeb 20, 2019 ... Bad harness and bad connector at the injector was my issue. Hope this helps somebody.17' Wrangler 3.6L - P0300 - Engine Misfire - 6K in repairs. I have a 2017 Jeep Wrangler Unlimited 3.6L - The check engine light came on and threw the code P0300, so I replaced the spark plugs, the CEL came back on almost a month later and I discovered that Jeep had a service bulletin stating that if the P0300 is thrown to bring the vehicle in ...P0302 in the Audi Q7 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 Q7's check engine light to come on, you shouldn't drive your vehicle at all. Repairing P0302 should be considered ...P0304 is a cylinder-specific misfire code, meaning only your Wrangler’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.These particular codes indicate that there is a misfire in cylinder one, two, three, four, and five respectively. Fixing P0306 should be considered a high priority. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion. It also can cost money to ignore it, since driving with a misfire can damage the Wrangler’s ...On a 1997 Tj 2.5 manual, with a new motor with only about 5k miles on it. Removed and cleaned the throttle body and replaced all sensors. TPS, MAP, IAC. Issue improved but never went away, so i moved on to 02 sensors (Yes all sensors are Mopar). Replaced both up/downstream sensors and issue stayed the same.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...Jeep is a 3rd vehicle, not driven much at all at this point, here's the history: 1. Cylinder misfire codes threw for cylinder 3 (no indication or affect on driving felt, minus a drop in fuel efficiency). swapped spark plug with # 2, and the misfire went to two. replaced all 6 spark plugs with OEM replacements. misfire code stayed at 2. 2 ...Cylinder 2 misfire detected What the P0302 code means Most vehicles have either 4 or 6 cylinders. Each cylinder fires a spark plug one after another. A spark plug is located on the top of each cylinder. The spark plug uses an electric spark to ignite the flammable air/fuel mixture, producing energy.SUBJECT: (X56) -3.6L Left Cylinder Head - Select 2011 -2013 Vehicles PURPOSE: CHRYSLER GROUP LLC ... Jeep Grand Cherokee (WK); Jeep Wrangler (JK); Dodge Durango ... vehicle population may experience a valve guide and valve seat wear condition on the left cylinder head, which may result in misfire and subsequent illumination of the Malfunction ...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.Original Post: I was driving along the freeway today at a nice steady 65. Had to slow for traffic and as we started moving again the Jeep backfired a couple of times and then continued on the road running a bit ragged with a few misfires and some more backfires. Especially when under load at lower revs.88 Jeep Wrangler YJ Islander Edition AMC 4.2L 258 I6 5 Speed Manual BA-10 Holley Carburetor 2BBL 4412-5 Manual Choke It was a hard start, wouldn't run for more then a minute or two, found that I had fuel delivery problems. Inline fuel filter and 1 input 2 out, one was a return to the tank. Pinched the return, bingo runs.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.Cylinders are three-dimensional containers that are typically used to store compressed gas, pressurized liquid and other similar hazardous contents. Transporting cylinders requires...Sep 9, 2017 · 50679 posts · Joined 2005. #4 · Sep 10, 2017 (Edited) Since the misfire is just on the #3 cylinder, you don't need a new coil which on your '99 provides spark for all six cylinders. It's likely either from heat soak in the #3 fuel injector, a bad spark plug, a bad #3 ignition wire, or less likely a bad upstream O2 sensor.Swapped the injector with the one on cylinder 1 and still has the misfire on that cylinder as well as cylinder 6 (cylinder 6 is not As consistent of a misfire as …552 posts · Joined 2013. #1 · Apr 25, 2017. Hey all, My father in law has a 2002 Wrangler with the 4.0 and he keeps getting the cylinder one misfire code and have issues losing power and stalling. I have tried to help him to the best of my ability but I live in a different city so I couldn't spend much time with it.In this video I have a look at a customers 2017 Jeep Wrangler with the big 3.6 with a misfire and a couple codes stored. A P0203 and a P0303 for the injector...2) I pulled the spark plugs from #1 & 2 (#1 looked good), checked the gap and swapped them. Drove the Jeep and after about 150 miles the code popped again. It had a pending misfire at about 50 miles, but at around 150 it went hard. Checked the monitors and Catalyst and Evap were not ready.Dodge Durango/Dodge Journey/Jeep Wrangler and Grand Cherokee w/3.6L - Ignition coils, spark plugs, and injectors are the most common with cylinder heads high on the list as well. Dodge Dart w/2.0L - Ignition coils, spark plugs, and injectors most common, with Crankshaft Position Sensors a very close second.Initially, it read Misfire on cylinder 2. But after the initial trip to the dealer, when they replaced the spark plugs and cylinder 2 coil pack, the EVIC started reading Misfire on cylinder 1. I had taken a picture of it, and looking back, I now realize it was actually displaying “P0302 - Misfire on cylinder 1” .... P0302 is actually ...1997 wrangler misfire. ... 1 post · Joined 2017 Add to quote; Only show this user #1 · Jul 9, 2017 ... A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ ...So, please excuse one more "misfire at idle" post, but hopefully someone can steer me in the right direction before I spend the kids college fund on replacing sensors. My '95 2.5L has the all too common misfire and rough low idle. Like others, it starts up just fine, will high idle for 20 seconds or so on a start and then drops down into ...15K views 2 replies 3 participants last post by dsandrews2 Jul 26, 2019. C. crasher292 Discussion starter. 1 post · Joined 2019. #1 · Jul 23, 2019. I have this code P0302 popping up on my 2015 Jeep Grand Cherokee 3.6. I have changed all 6 spark plugs and coils. The code will not go away and my jeep is running just a little rough at low RPM ...Intermittent Misfire Cylinder #6 P0306. Recently bought a 2014 Cherokee 3.2L V6 4x4 (78,000Km or 48000miles-ish) and I got a MIL pop up, as title states code was a misfire on cylinder #6 (P0306) after seeing this I switched to higher quality fuel with additives, changed all 6 plugs with mopar OEM, and also changed the coil on the effected ...The plastic barb that vapor tube is connected to at the top of the tank can crack creating small vac leak is most common cause of p0456. Another less common cause is the vac canister valve itself and then also rarely the filler cap seal and/or valve. If your pcv is buggered.1754 posts · Joined 2010. #2 · May 23, 2015 (Edited) The dealers know there is a problem with the left heads on 2012s. There is a TSB and a warranty extension dealing with the left head oj JKs built on or before July 25, 2012. If you are still under warranty, they should not balk at replacing it for you. I wouldn't even consider paying for it ...2012 Jeep wrangler Unlimited Sahara Sport Utility 4D. Joplin, MO. 156K miles · Dealership. $25,000 $30,000. 2015 Jeep wrangler Unlimited Sport S SUV 4D. Fort Scott, KS. 61K miles. New and used Jeep Wrangler for sale near you on Facebook Marketplace. Find great deals or sell your items for free.I'd swap the spark plug in cylinder 5 with another and see if the misfire code moves with the plug. If it doesn't, you're stuck with the coil rail. 2017 Billet Silver Jeep Wrangler Unlimited Rubicon Hard Rock , Auto, 3.73, BF Goodrich LT255/75R17C KM's, Uniden CMX760 CB Radio, Firestik FS3-B on Spare Tire Carrier MountP0302 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.Primary causes of engine cylinder misfires include loss of compression, an unbalanced air or fuel ratio, a loss of spark and a malfunctioning fuel injector. The misfire occurs as a...Misfire cylinder 1 p0301 code. Replaced plug and wire, ran. better, then again threw code. Replaced coil pack, runs better and not throwing code. But, hear ticking near cylinder 1 by alternator when cold, stops after a minute or so. Only runs rough after warmed up. So...not sure what it could be. Will check manifold for crack.Jul 15, 2019 · 2013 Wrangler Unlimited Sport 3.6L Jeep runs run rough and backfires. Number 2 cylinder misfire code that I can not get rid of. Changed the number 2 coil. Changed all 6 spark plugs. Did not help. Possibly made worse. Swapped number 2 and number 4 fuel injectors with no change. Tested power to all injectors and all coils. Everything has power.2017 GC 3.6, 35000 miles. Looking for some help on an issue. OBD JScan showes multiple misfires (saw 2-3 per cylinder) on an 20 minute drive. As the title says, no codes stored. Brief hesitation/shudder when accelerating under slightly above average acceleration / load. Also, rough idle when cold, and definate 'shake' 2k-3k rpm when in neutral.P0301: This reveals a misfire in Cylinder 1. P0302: Specific to a misfire in Cylinder 2, this code can point to issues such as faulty spark plugs or ignition coils. P0303 and P0304: Similarly, these codes diagnose misfires in Cylinder 3 and Cylinder 4 respectively. Proper diagnosis and timely attention to these engine codes can prevent further ...Jeep Code P0303 Causes. Cylinder 3 misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. 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. Faulty or worn spark plugs.Originally I had a misfire in cylinder 6 and 1 then it changed to 5 and 2. Also a random misfire code would pop up. My Jeep had a lifter tick on cylinder 6 and it had its head replaced after original head cracked on previous owner. One mechanic thought the failed was causing the valve to not open completely thus causing a misfire. Cylinder 6 ...Jun 14, 2023 · 17' Wrangler 3.6L - P0300 - Engine Misfire - 6K in repairs. I have a 2017 Jeep Wrangler Unlimited 3.6L - The check engine light came on and threw the code P0300, so I replaced the spark plugs, the CEL came back on almost a month later and I discovered that Jeep had a service bulletin stating that if the P0300 is thrown to bring the vehicle in ...Cylinder misfire 08 wrangler. So know there's several threads already but have did all those fixes. Firstly little background, have 08 jku with 105000 miles. Sounds good and is why bought it about month two months ago. Then it went downhill quick. Drove it about week when engine light came on. Got it checked and found few codes biggest being ...Jun 19, 2021 · 2016 Wrangler Cylinder #2 Misfire. I bought my Jeep in 2017, it is a 2016 Wrangler Willys Unlimited. In August of 2018 the engine light came on and it wasn't running right. Brought it in and was told there was a cylinder 2 misfire and the spark plug was badly fouled. They changed the spark plug and changed the coil to cylinder #1.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.Here is the specs. 2000 jeep wrangler. 4.0L. 115,000 miles. oil/filters changed and everything greased religously. a couple weeks ago enigne light comes on and it say "engine 3 and 5 misfire." Last year when this happened I cahnged plugs and all was fine, but this time I cahnged plugs with the NGK plugs and all of a sudden the light stayed off ...8099 posts · Joined 2011. #9 · Dec 19, 2017. 3.6 is odd on passenger side. Easy to spot #1. Its always the furthest forward (first rod on crank). Only an inch or two - but look closely on any V engine and you can see how spark plug 1 is FWD. Then down the line is 3 and 5 (7, 9, 11). Some engines its even notable looking at the intake or ...2017 WK2 - Cylinder #2 Misfire. Not sure I've seen any posts on this from more recent year WK2s. Got back from a long road trip the other day and let the gas get down low, but made it to a gas station. Filled it up as usual. Next day, started getting rough idle both in park or in drive and the CEL came on (steady, not flashing).Summary. Code P0300 stands for “Random or Multiple Cylinder Misfire Detected.”. In most cases, a P0300 is accompanied by other trouble codes from P0301 to P0308. 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 …10 posts · Joined 2015. #1 · Mar 25, 2019. Hey gang, Wanted to see if anyone has thoughts on what can be causing missing, misfire, and sputtering issues with my 2015 Jeep Wrangler Sport. It's really bad when starting Jeep for first time in mornings or late afternoons once it has been setting all day at work.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...Meticulously maintained 2017 Jeep Wrangler Unlimited, 36k miles now throwing P0302 code. Cylinder # 2 plug and coil replaced plus intake plenum gasket. Issue was not resolved. Compression check on # 2 cylinder shows 80 psi vs 150 psi. Dealership says that left cylinder head will need to be replaced at a cost of $3,500.3468 posts · Joined 2014. #9 · Jan 23, 2020. Per the MOPAR service manual: The cylinders are numbered from front to rear. The right bank is numbered 1, 3, 5 and the left bank is numbered 2, 4, 6. So cylinder 5 is right (passenger) rearmost cylinder.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.Jun 26, 2012 · 370 HEMI said: There have been several people that have contacted us with the concern about the relatively recent discovery of the 3.6L Pentastar cylinder 2 misfire problem. Apparently, after some research and discussions with internal engineers and ASE certified techs, it has been found that the #2 cylinder causes a misfire due to a machining ...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.2017 GC 3.6, 35000 miles. Looking for some help on an issue. OBD JScan showes multiple misfires (saw 2-3 per cylinder) on an 20 minute drive. As the title says, no codes stored. Brief hesitation/shudder when accelerating under slightly above average acceleration / load. Also, rough idle when cold, and definate 'shake' 2k-3k rpm when in neutral.Sep 25, 2019 · 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...JKURSABI Discussion starter. 4 posts · Joined 2020. #1 · Jan 3, 2021. Hello all! I have a 2014 Rubi with 87k miles. Had a cylinder 2 misfire so decided on doing spark plugs with OEM champion iridiums, and changed all coil boots, along with plenum gaskets. After all is said and done I am still having the code pop up.They replaced both the plug and coil for cylinder 2. Just now the code has popped up again and I will be going back to the dealership. Anyone know what could be …14 posts · Joined 2013. #1 · Feb 15, 2017. So my engine light came on last week in my '02 wrangler and I had the code run, it said it was a cylinder 1 misfire. After getting the diagnostic done on the engine, the mechanic said it could have been the spark plugs (turns out had been a while since I had them replaced) or the ignition coil pack.4'th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Renegade'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.. I took to mechanic changed both fuse boxes first (had a batt179 posts · Joined 2015. #1 · Jun 9, 2015. I recently finished up inst i have a 2016 jeep wrangler unlimited with only 50k miles and 2 months out of warranty and i have been chasing a #2 misfire. i already changed plugs and injector which was failed. but most disturbing is the amount of 2016-2017 owners that are having issues with heads and rockers failing in this 3.6 engine. this problem should of been fixed ...2013 Jeep Wrangler; ... Dealers will check for trouble codes related to engine misfire on cylinders 2, 4 and 6. If misfire is noted, dealers will perform a cylinder leakage test. If loss of ... Use a screw driver to listen to the injectors. Plac P0302 in the Jeep Wrangler 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 Wrangler's check engine light to come on, you shouldn't drive your vehicle at.The Diagnostic Trouble Code (DTC) P0204 stands for "Injector Circuit Problem—Cylinder 4.". A dormant injector will have a voltage close to the battery voltage, whereas an active one will have a voltage that is "low" near zero. The PCM will set the P0204 code if the injector's voltage does not match the voltage expected for its state. 89 posts · Joined 2012. #1 · Oct 2, 2016. Gentlemen: While dr...

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