2024 Jeep wrangler p0300

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Help!!!!! 2006 wrangler 2.4 liter p0300. ... 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 …Super secret hidden bonus brake lathe video! https://youtu.be/T4ugvdgaoHYCheck out my Merchandise Store Below the video for Men's and Women's Apparel, MUGS a...P0300, P0301, P0305 cyl misfire. Would really appreaciate some answers! Last week CEl came on. i changed the upstream 02 sensor on the passenger side, cleared the light and everything was going well. Then this week it hit me with p0305 (cyl 5). Thought it was the coil that went bad so i switched coil from cylinder 1 to cylinder 5 and 5 to 1.P0300 can't be tackled. Hello everyone! 2006 Jeep wrangler 2.4l 4 cylinder 101k miles. Got P0300 code and have replaced wiring harness (dealership), PCM (dealership), MAP (duralast), spark plugs (NGK Plat), going to change ignition coil and coil plugs next. TPS & MAF sensor changed within the last 10 months.What is the P0300 code in the context of a Jeep Wrangler? It’s an OBD-II generic code indicating a random or multiple misfire in the engine. How can I identify if my Jeep Wrangler is affected by the P0300 code?What makes this 1.5% cash-back card so special? The fact that it's not just a 1.5% cash-back card but also a jumping-off point for incredible travel redemptions. Editor’s note: Thi...3 posts · Joined 2018. #1 · Mar 12, 2018. Check engine lights P2305 and P0300 for ignition coil 2 secondary circuit and multiple cylinder misfire. So far I have replaced plugs, wires and coil. Still have check engine light and misfire. Wondering if anyone had similar problems and what they did to solve. Or any suggestions on where to go next.The Jeep Wrangler utilizes a crankshaft position sensor in order to regulate the engine timing. This sensor uses a reluctor to gauge the position of the crank. When the Wrangler's ECM determines that there is an issue with the signal coming from this sensor, it'll throw the P0335 trouble code. P0335 Symptoms: Jeep WranglerAug 4, 2022. #1. We have owned our Jeep for roughly two months. Code p0300 multiple engine misfire detected has popped up now 3 times. First time, took it to the dealership. They found failing coil packs and replaced three. Also had them replace all the spark plugs. Second time, took it to the dealer, no issues found.P0300 "Multiple Cylinder Misfire" I work out of state on a week on / week off basis, so last week I drove a different vehicle and left the Jeep at home. When I got back this past Monday on 4-18 I drove it on several short trips for four days straight and it was perfect, and also the CEL was off the whole time.Jan 23, 2024 · A P0300 code in a Jeep Wrangler indicates a random misfire, which can be caused by various issues such as spark plug problems, fuel issues, or ignition system malfunctions. To diagnose and fix the problem, you should start by checking the spark plugs for wear or damage. Sep 20, 2021 · Fast forward to this past August 22nd and it threw another P0300. In this case I had driven about 50 miles to see family. The Jeep sat in the driveway for about 4 hours. It was hot. Then after departing, and getting to the stop sign down the street, about 1 minute since engine start, the CEL came on. I always carry a scanner and it said P0300. That's when it showed P0300. I installed all 4 O2 sensors with NGK sensors as per the O2 sensor thread on here by @Chris hoping it would help but I still have a rough idle. ... Produced from 1997-2006, many consider the …If the cause of the P0300 code is determined to be worn spark plugs or a faulty ignition coil, these will need to be replaced. If the cause is a clogged fuel injector, it too will need to be replaced. WF LIFE TIME MEMBER...OLD DOGGER, FROM CAVE CREEK ARIZONA. ... Jeep Wrangler Forum. 9M posts 470K members Since 2005 A …CKPS's are affected by extreme temperatures. There is a trick to get the CKPS to start working again; you pour some water on the sensor and let the vehicle sit a few minutes. The next time the engine is cranked over; it will start. This is a trick I used when one of the Jeeps would not restart after trail driving a few hours on a hot day. OP.Though anti-virus software is designed to protect your computer against harmful programs, it can sometimes get in the way and misidentify safe tasks -- like printing -- as harmful....The Jeep Wrangler utilizes a crankshaft position sensor in order to regulate the engine timing. This sensor uses a reluctor to gauge the position of the crank. When the Wrangler's ECM determines that there is an issue with the signal coming from this sensor, it'll throw the P0335 trouble code. P0335 Symptoms: Jeep WranglerJan 19, 2015 · P2302 running rough. Hello new to the site, I have an issue with my 2008 Unlimited 4wd sahara. one day about 1 mile from my house my CEL light popped on and started blinking the jeep started running rough/misfiring so I turned around and went home. Did the 3 key turns to find P0300 and P2302 codes. After researching online I decided to replace ... Super secret hidden bonus brake lathe video! https://youtu.be/T4ugvdgaoHYCheck out my Merchandise Store Below the video for Men's and Women's Apparel, MUGS a...It read code P0052 - Voltage to high on Bank 2 Sensor 1 - essentially the new sensor I just put in. Other than the new Yellow light the car ran fine. I cleared the code and it IMMEDIATELY came back the next time I started the car. This time also with P1129 - some nonsense about the fuel loop. That one comes and goes.The rich may be getting richer, but we can still work towards a better world, she says. It took a global pandemic and stay-at-home orders for 1.5 billion people worldwide, but some...3 posts · Joined 2015. #1 · Jul 8, 2015. My son drove his 06 Jeep Wrangler from Montana to SC he got almost here and the check engine light came on, he lost power and it started spurttering. We had it towed home. We had it checked and the code P0300 was reading, so we replaced the spark plugs,and ignition coil, it ran good for 2 days and ...1997 Jeep Wrangler P0300, p0301, p0302, p0303, p0304, p0305, p0306. I just took my 97 wrangler through inspection and they told me that I failed emissions. I looked up the codes, p0300 -p0306 and they say that I have firing issues on all six of my cylinders. I am experiencing no symptoms at all.P0300 Code (Random/Multiple Cylinder Misfire Detected) 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 ...Felt the motor weird today on my way home today, like it was missing power under light throttle, and actually having a misfire, confirmed by the engine light in the dash flashing. I pulled the codes when i got home, and i'm showing P0152 and P0300. P0152 is bank 2 sensor 1. so Bank 1 should be clylinder#1 side, or front passenger.P0016 should be considered an important trouble code to diagnose and repair. The crank and cam sensors work in tandem to produce the ideal air/fuel ratio for your engine. When this timing is off, the engine will typically not run (or barely run) Here are the major symptoms of P0016 in the Wrangler: Failure to start. Rattle coming from the motor.Link Below: Hesitation, low power, Check Engine Light & misfire with this Jeep Wrangler. My scan tool gave a P0300 OBD (DTC) Diagnostic Trouble Code: Interm...Either one or sometimes multiple misfiring codes (P0300 / P0301 / P0303 / P0305). I tried buying new coil and plugs for the ones misfiring but same thing. Drives good for 20 -75 miles, then misfire code. Ive taken this to 3 mechanics so far and have not been able to pinpoint the problem. Ive tried replace O2 sensors, replaced ECU computer, leak ...P0300 in Jeep is "Random/multiple misfires detected" And P0304 is a Cylinder 4 misfire detected. My experience has been that these typically mean that #4 is the WORST reporting misfiring cylinder. If you have some mechanical skill, pull the #4 plug and take a look at it.When I start it up, there is a solid check engine light and after about 30 seconds of running, the idle gets really rough and the check engine light starts blinking. I have engine codes: P0300 Multiple Cylinder Misfire. P2302 Ignition Coil 1 Secondary Circuit - Insufficient Ionization. So far I have replaced the plugs, wires, and coil pack all ...If you own a Jeep, it’s crucial to stay informed about any potential recalls that may affect your vehicle’s safety and performance. One of the most effective ways to do this is by ...P0300, P0301, P0305 cyl misfire. Would really appreaciate some answers! Last week CEl came on. i changed the upstream 02 sensor on the passenger side, cleared the light and everything was going well. Then this week it hit me with p0305 (cyl 5). Thought it was the coil that went bad so i switched coil from cylinder 1 to cylinder 5 and 5 to 1.Apr 8, 2023 · You can fix The Jeep P0300 Error Code by replacing worn-out or damaged ignition components like spark plugs, and ignition coils. You can also check the spark plug wires and replace them if there is an issue. Their suggestion is to do a 'tune up' with new plugs and wires (yes, I told him it doesn't have plug wires) for about $400. The plugs are only $85 if I buy locally. He said it's about 2.5hrs labor. Even at $100 per hour it doesn't come up to $400 total. I don't know what to do at this point.A code P0300 may mean that one or more of the following has happened: Faulty spark plugs or wires. Faulty coil (pack) Faulty oxygen sensor (s) Faulty fuel …The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.When it comes to finding the perfect pair of jeans, men have a lot of options. But if you’re looking for a classic, timeless style that will last for years to come, then you can’t ...As I do. I go out to jeep and the check engine light is flashing, along with ess disabled light. And running on half the engine being injectors are cut off when it detects a misfire. So I cut it off and restart it runs with a small stumble but no longer in limp mode. As I drive away I get a cel. I check it with a bluetooth scanner and its a p0300.A P0300 is generic for a misfire. Sometimes there are other 300 codes that also come up in addition to the P0300. It could also be as simple as a bad tank of gas. How many miles on it ? It can usually also mean any of the following: Faulty spark plugs or wires Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector(s) Burned exhaust valveP0300 is going to set for any misfire detected but you have a specific code for cylinder 6. This means a bad plug and/or ignition coils, wiring. Start with the easy things first. None of these codes have anything to do with the CAT.Jeep Cherokee 4.0L "Code P0300" Jump to Latest Follow 32K views 3 replies 3 participants last post by KamekLocked Sep 24, 20082,871. Location. CT, United States. Jul 2, 2018. #2. Ted05Rubi said: Our 05 Rubicon has had no engine work or parts changed since we bought it 500 miles ago. It just turned 82,000 when the engine light came on, and …The P0300 is the only code. I've checked what is pending several different times and it's the only one that shows up in Pending or as the CEL code. I didn't have much luck on the Wrangler forms but looking on the Gladiator forums, which has all the differences a JL would over a JK, this seems to be a rampant issue.It could be a multitude of problems. - cam sensors marked with a "D" were bad from factory. - Oil Galley bolts loose, behind the cam phasers on the front of the valve cover. - will cause worn valve guides on the front, listen for an engine tick at idle. - and even the head warping and causing even more trouble.Thread starter. #1. I have 134 miles on the clock, and have been getting misfire code since day one. Taking it in to dealer on Monday. Sponsored. Discount Dave.P0300 is going to set for any misfire detected but you have a specific code for cylinder 6. This means a bad plug and/or ignition coils, wiring. Start with the easy things first. None of these codes have anything to do with the CAT.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...Jun 14, 2023 · dfoster716 said: 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 to have the PCM updated. I brought the Jeep ... Oct 7, 2016 · 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. Note: In California, the Evap monitor does not need to be ready to pass the smog test. 3) Swapped injectors #1 and #2. Drove Jeep with same result ... Replacing worn or damaged weather stripping around exterior doors will save money on your energy bills. Expert Advice On Improving Your Home Videos Latest View All Guides Latest Vi...P0300 is a generic OBDII code that can occur with the Jeep Wrangler. This code indicates that your vehicle's engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).Misfire. A misfire will cause P2096. A misfiring engine does not have to make a noticeable sputter sound. It can be subtle enough that you can’t feel it as you drive your Wrangler. If this is what is causing the code, it’ll usually be accompanied by a misfire related trouble code. Here are the most popular ones:Frustraded P2305 and P0300 code. I have a 2008 Jeep Wrangler Unlimited Sahara. It is giving me a P2305 and P0300 code and the check engine light is on. I have replaced the plugs, wires, ignition coil, crankshaft position sensor, and the camshaft position sensor. When idling in park it doesn't sound like it's misfiring.No hard starting issues. The CPS is what monitors for misfire. Misfires can happen from plugs, coil, or distributor and fuel related items, but if you know they are working correctly, your CPS may be failing to monitor the RPM’s correctly and throw a code thinking it “sees” a misfire. It’s a tough call for a $100 part.Jan 26, 2021 · Just picked it up on 1-22. Seemed sluggish getting on the freeway as I was leaving the dealer, but I didn't think to check the CEL as it was fine the rest of the way home. (1 hour freeway) Took out for a drive next day and noticed same going up a hill from a stop. CEL flashed several times. Got home and read P0300. 2018 Jeep Wrangler JLU Sahara (Granite) Occupation BCBA Vehicle Showcase 1. Nov 29, 2022. Thread starter #1 I recently got the check engine light come one and received this code P0301 which is cylinder 1 misfire and another code stating multiple cylinders misfires.P0038 OBD nightmare. Probably already discussed but not finding anything to help me out. I have an 08 Wrangler unlimited X. Check engine light pops on, check it out with a scanner and received the P0038 high bank 1 sensor 2 heater circuit code. Replaced both number 2 (after cat) sensors, drove it for a while, light still on, disconnected the ...P0300 can't be tackled. Hello everyone! 2006 Jeep wrangler 2.4l 4 cylinder 101k miles. Got P0300 code and have replaced wiring harness (dealership), PCM (dealership), MAP (duralast), spark plugs (NGK Plat), going to change ignition coil and coil plugs next. TPS & MAF sensor changed within the last 10 months.P0300 and P2305 Codes. Hello everyone, I am posting to see if anyone has any suggestions or similar experiences with their JK. I have a 2011 manual wrangler 3.8 L and we started getting codes P0300 and P2305 out of nowhere the other day. Initially I thought it was plugs and wires so I replaced all of the plugs, wires, and the coil pack.Engine is still running, I can accelerate, downshift gears, etc., but I pull over to get my code reader out. I get the following codes: P0300 - Random misfire. P0315 - Crankshaft Position Sensor not learned. P0335 - Crankshaft Position Sensor Circuit. I clear the codes and start it back up to see if it's a fluke issue.May 21, 2023 · P0300 and P2305 Codes. Hello everyone, I am posting to see if anyone has any suggestions or similar experiences with their JK. I have a 2011 manual wrangler 3.8 L and we started getting codes P0300 and P2305 out of nowhere the other day. Initially I thought it was plugs and wires so I replaced all of the plugs, wires, and the coil pack. I see this code often on all different kinds of cars and sometimes yes it's the camshaft sensor and then sometimes its because its an aftermarket sensor. To ...Aug 17, 2011 · I get code p0300, random cylinder misfire, and sometimes one or more codes to a specific cylinder (P030X). There are no symptoms - no engine running rough, doesn't die, etc. I can't reliably reproduce the code after blowing it out with the reader, but so far it seems off-roading or bumpy roads (vibration) will set it off. None of which has worked. Though anti-virus software is designed to protect your computer against harmful programs, it can sometimes get in the way and misidentify safe tasks -- like printing -- as harmful....Here are some of the things I use daily when working on cars:https://amzn.to/37jyVEM --- OBD II Scannerhttps://amzn.to/37jySJ6 --- Oil Life Reset Toolhttps:/...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.That's when it showed P0300. I installed all 4 O2 sensors with NGK sensors as per the O2 sensor thread on here by @Chris hoping it would help but I still have a rough idle. ... Produced from 1997-2006, many consider the …Perhaps even more impressive than their revenue beat might the 10% growth in net income....AMZN I had just come off live television. All my ducks were in a row. Kind of. I thought....Mar 20, 2012 · Misfire help... P0300, P0303, P0304. My 01 TJ's engine light came on. So igot the codes. And got p0300 p0304 an p0304. I'm planning on taking it to a shop asap but it probably won't be until next week. It will run perfect... Until I stop, shut it off and let it set for 5-10 mins then when I start it usually takes 2 try's to start it and it runs ... Jan 6, 2015 · Replaced spark plug wires and plugs tonight and now throwing the p2308 code. A few things. If you dropped any of the new plugs at any time, the porcelain on the plug itself may be cracked. Another thing is Spark plug gap VERY IMPORTANT .032. Coils do go bad, but lets go over the easy stuff first. 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. Note: In California, the Evap monitor does not need to be ready to pass the smog test. 3) Swapped injectors #1 and #2. Drove Jeep with same result ...2022 Sport S - Rubicon Express 3.5 lift, KMC XD 229 Machete Crawl in Satin Black 17x9, Maxxis Razr MT 37x13.5x17Misfires, rough idle, P0300, p0174, p2099. Last year 2018 in June I had these same codes come up with really rough idle. I changed spark plugs and wires and it came back a month later. I took it to a mechanic and he couldn't find anything wrong with it.Dec 6, 2018 · Jeep Wrangler P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order. It won’t be the sixth cylinder that you might see when looking at the ... When it comes to finding the perfect pair of jeans, Wrangler is a name that stands out. With a wide selection of styles and fits, it can be difficult to know which pair is right fo...P2098 is a generic OBD II code. It specifically indicates that your Wrangler detected a lean condition after the catalytic converter (too much air for the amount of fuel present). P2098 Definition This particular code is generic, so it has the same meaning for your Jeep Wrangler as any other vehicle. There are three parts.There were two main reasons why companies do not talk about homosexual employees. Last week, an overwhelming majority voted in favour of same-sex marriage in Ireland—the first nati...Jeep TJ P0300 Solution. I had been chasing around this problem for months which seems to be quite uncommon. The jeep would intermittently buck or stall at highway speeds. It seemed as though power was being cut out to the engine for an instant. I replaced all the common parts: throttle position sensor, camshaft position sensor, crankshaft ...The upstream O2 sensor malfunctioned, causing the engine to dump copious amounts of fuel leading to a P0300 multiple cylinder misfire. The cats burned up (melted) and needed to be replaced. The actual issue was the driver side (left side) upstream O2 sensor.I see this code often on all different kinds of cars and sometimes yes it's the camshaft sensor and then sometimes its because its an aftermarket sensor. To ...Are you in search of the perfect off-road vehicle that can handle any terrain? Look no further than a Jeep Wrangler. Known for its ruggedness and versatility, the Jeep Wrangler is ...HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIREIf your car has engine light on and code P0300 Random Cylinder Misfire Detected, we will explain what c...February 1, 2023 by Jason. P0301 is a fairly common trouble code with the Jeep Wrangler. It’s an OBD2 code and indicates that your vehicle’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Wrangler. Fixing P0301 should be considered a high priority.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 …P0108 is a generic OBD-II trouble code. It indicates your Jeep Wrangler's MAP (manifold absolute pressure) sensor's voltage reading is outside of the normal operating range. The voltage is too high. It's most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into.

i would like to capture in a single thread anyone who has had an incident with their late build 2015/2016 wrangler with the 3.6 Pentastar engine. (CEL or thrown code) ENGINE MISFIRE CODES. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire.. How to get past honorlock

That's when it showed P0300. I installed all 4 O2 sensors with NGK sensors as per the O2 sensor thread on here by @Chris hoping it would help but I still have a rough idle. ... Produced from 1997-2006, many consider the …Either one or sometimes multiple misfiring codes (P0300 / P0301 / P0303 / P0305). I tried buying new coil and plugs for the ones misfiring but same thing. Drives good for 20 -75 miles, then misfire code. Ive taken this to 3 mechanics so far and have not been able to pinpoint the problem. Ive tried replace O2 sensors, replaced ECU computer, leak ...Every time I pull the following codes p0300,p0303,p0304, general misfire, and misfire on cylinders 3 and 4. The following items have been confirmed to be properly working: plugs, wires, cap, rotor, o2 sensors, injectors, fuel pressure OK. Here is one more thing, after erasing the codes the jeep runs great for the next drive.P0038 OBD nightmare. Probably already discussed but not finding anything to help me out. I have an 08 Wrangler unlimited X. Check engine light pops on, check it out with a scanner and received the P0038 high bank 1 sensor 2 heater circuit code. Replaced both number 2 (after cat) sensors, drove it for a while, light still on, disconnected the ...Went to AutoZone, code P0300 (multi cyl misfire), secondary code P0301(cyl 1misfire), most likely solution replace cranksahft position sensor. Took it to O’Reilly Auto Parts, same codes except no crankshaft sensor code. So I took it to the Jeep dealer, they said they found the same code (no crankshaft code) but was not sure what was causing it.1997 Jeep Wrangler P0300, p0301, p0302, p0303, p0304, p0305, p0306. I just took my 97 wrangler through inspection and they told me that I failed emissions. I looked up the codes, p0300 -p0306 and they say that I have firing issues on all six of my cylinders. I am experiencing no symptoms at all. The Jeep runs like a champ, and I have …If you’re in the market for a used Jeep Wrangler, you’re in luck. These iconic off-road vehicles are known for their durability, versatility, and rugged style. Whether you’re an ou...i would like to capture in a single thread anyone who has had an incident with their late build 2015/2016 wrangler with the 3.6 Pentastar engine. (CEL or thrown code) ENGINE MISFIRE CODES. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire.Now offering an available factory-installed WARN® winch on Rubicon, paired with the available steel front bumper, the new Jeep® Wrangler comes equipped to help you handle tricky situations on the trail. Featuring an 8,000-pound rating, this off-roading winch has the strength to help you pull other vehicles to safety or help avoid getting ...The P0300 is a misfire, maybe you have a plug wire that isn’t seated right and the moisture is shorting something. It would go away with heat from the engine. You could try replacing your plug wires. P2096 is a downstream code for too lean. Until you sort the misfire you can probably ignore this.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. Note: In California, the Evap monitor does not need to be ready to pass the smog test. 3) Swapped injectors #1 and #2. Drove Jeep with same result ...I have a 2000 Jeep Wrangler 4.0L, It is misfiring MIL light on, codes are P0300, PO304, PO303 for Multiple Misfire. Here are the following repairs I have done: *Replaced Ignition Plugs. *Replaced Ignition Coil Pack. *Replaced a Blown Headgasket. *Had Cylinder Head Machined (New Hardware, Headbolts n Valve Guides)A P0300 code in a Jeep Wrangler indicates a random misfire, which can be caused by various issues such as spark plug problems, fuel issues, or ignition system …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..

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