2017 jeep wrangler cylinder 2 misfire. 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.

1228 posts · Joined 2018. #7 · Jan 8, 2024. Check with your dealer re. the P302 warranty. On earlier models, they were covered for up to 150k miles but a 2018 will have the upgraded Pentastar engine that was supposed to have fixed this problem so I am not sure the extended warranty applies.

2017 jeep wrangler cylinder 2 misfire. Misfire - If your Wrangler's fuel injector is not getting the right amount of fuel into cylinder three, it'll misfire. A misfire will hurt the acceleration of the vehicle and cause fuel mileage to suffer. Service Engine Light - The check engine light will obviously be on, but you may or may not get a flashing check engine light as well.; P0203 Causes: Jeep Wrangler

Our 99 Grand Cherokee with over 238,000 miles developed a hard misfire one morning when my wife tried to leave for work. I installed my scanner and found P0300, P0302, and P0304 codes. They represent in order; random misfire, cylinder 2 misfire, and cylinder 4 misfire. I've been an auto tech all my life, from 1977 to 93 in the auto center of a ...

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 ...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 ...

Misfire – If your Wrangler’s fuel injector is not getting enough fuel into cylinder 1, it will misfire. A misfire will hurt the acceleration of the vehicle and cause fuel mileage to suffer. Check Engine Light – The check engine light will obviously be on, but you may or may not get a flashing check engine light as well.; P0201 Causes: Jeep Wranglerjcp_56 Discussion starter. 34 posts · Joined 2009. #19 · Mar 18, 2010. Its been about 10 days now and the code came back. Its not idling rough very often, and it wasn't really idling rough when the CEL came up. This time the CEL was P0300-Random/Multiple Cylinder Misfire.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 …6 posts · Joined 2011. #1 · Sep 17, 2016. So, I just got my 2001 Wrangler TJ 4.0L/Automatic back from the shop. They had it for over six weeks trying to fix the infamous "CEL light at high rpm under load." Bad news is the issue is still there. The good news is that the engine is running better than it has since it was new.Still runs rough, meaning it idles like it's got a big cam in it. Exhaust pressure at tailpipe pulses. Still throws cylinder #4 misfire codes. 5. Hooked up a vac gauge to the brake booster line off the intake manifold and the needle stays in the middle of the green "good engine" range on the gauge at idle.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 …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...Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. RB The Mechanic assumes no ...

February 13, 2023 by Jason. P0302 in the Jeep Renegade 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 Renegade’s check engine light to come on, you shouldn’t drive your vehicle at all.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...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.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 ...

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 ...

140 posts · Joined 2011. #1 · Oct 4, 2012. This afternoon the wife called me and said the CEL light came on and wanted to know what to do. She came home, I hooked up my OBD2 scanner and turns out cylinder #2 had a number of misfires (131 according to my diag report). I had noticed what sounded like a ticking sound with the window down this ...

The problem that I was having was that the engine was sputtering and one cylinder was missing at low speeds/rpm. I read the codes with an ODB2 Reader and I was getting codes P0302 (Cylinder 2 Misfire Detected) and P105D (Intake Valve Stuck in High Lift Position). I web searched the problem and found out that many people were or are currently ...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.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 ...Jan 12, 2022 · 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.Cleared the code and it hasn’t come back on and is running fine. .. I have no experience with a 3.6 Pentastar, but I believe a P0303 misfire code can be caused by a bad intake manifold gasket at #3 cylinder. On a different engine, our Dodge SRT4 2.4 turbo, I got a P0304, a misfire on cylinder 4. And only P0304.

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.P0302 in the Chevy Cruze is a common OBD II trouble code. It indicates that your car'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 Cruze's check engine light to come on, you shouldn't drive your car at.P0302 in the Jeep Compass 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 Compass's check engine light to come on, you shouldn't drive your vehicle at.Let’s go into more depth and learn exactly what does the code P0302 mean? The first thing to understand is that the code indicates that the number two cylinder is the one that is failing to fire specifically. Secondly, the engine cylinders are controlled by the powertrain control module, or PCM. It is the PCM that controls and monitors the ...The 2017 Jeep Wrangler has 1 problems reported for cylinder 2 misfire. Average failure mileage is 75,400 miles. CarComplaints.com : Car complaints, car problems and defect informationHowever, engine misfiring inspection costs averagely between $65 to $100 depending on your location. While some service centers may offer you discounts and low rates if you have been patronizing them before. Average Costs to Fix a Wrangler Misfire. The average cost of fixing a wrangler misfire can be as cheap as $35 and as expensive as $1,500.5 posts · Joined 2017. #1 · Sep 12, 2017. Hi, I have a P0302 cylinder 2 misfire detected diagnosis by the OBD2 scan tool. This is after I changed the easily accessible spark plugs, 2/4/6. I changed them following an initial P0300/ P0301/ P0302 codes. Planned on starting the more involved work of changing spark plugs 1/3/5, but decided to see ...The P0303 code means that your Powertrain Control Module (PCM) or Engine Control Module (ECM) has detected multiple misfires on cylinder number 3. The misfire monitor tracks crankshaft speed variations through the crankshaft position sensor (crankshaft sensor). Any relative loss in the crank speed during the cylinder's power stroke counts as ...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 …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).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.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.Gulf CoastJT Discussion starter. 1 post · Joined 2021. #1 · Jan 21, 2021. 13 JKU 3.6 automatic. I have the dreaded JK 3.6 miss. #4 misfire. Changed all of the normal parts associated with this. I've changed spark plugs, coil packs, cam sensors inspected coil harness, etc. No joy as of yet. Any suggestions/advice?Aug 10, 2016 · 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.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 ...Jboggs Discussion starter. 8 posts · Joined 2017. #1 · Aug 19, 2017. My 2000 tj with 135k miles is having trouble with cylinder misfires. I have put in new spark plugs, a new coil pack, 2 new fuel injectors (the old ones were cracked or just dead), and replaced the idle air control valve. The thing is still misfiring.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 ...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 ...#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 cylinder's Injector Control circuit. Have you cleared the code to see if it comes back? If the misfire code keeps coming back... P0300-P0306 CYLINDER MISFIRE. · When Monitored:

I have misfires only on the right head. It can be multiple cylinder misfires (1,3,5,) or more commonly just one cylinder misfiring (1, 3, or 5), currently only cylinder 1 is misfiring around 200-250. Repairs and checks: The head is good with a leakdown test of 2% on cylinder 1, 3, and 5. Swapped coils (no change)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...I have a 16 Jeep wrangler JK that's had the cylinder 4 misfire(1). Had dealership change the heads once under warrenty.. then 1 year later got the code again. Paid out of pocket 6k to replace heads(2) out of warrenty. MIsfire came back so they changed the v same parts 3x.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.Misfire – If your Wrangler’s fuel injector is not getting enough fuel into cylinder 1, it will misfire. A misfire will hurt the acceleration of the vehicle and cause fuel mileage to suffer. Check Engine Light – The check engine light will obviously be on, but you may or may not get a flashing check engine light as well.; P0201 Causes: Jeep WranglerJan 24, 2024 · How to diagnose P0175 code. A skilled mechanic does these steps to diagnose the engine code. Inspect the fuel pressure. Check for restrictions in the fuel injectors. Inspects the fuel injector pulse. Looks for pinches or cracks in the fuel lines. Examines all vacuum lines for damage and cracks. Check the oxygen sensors.

The check engine light came on in my 97 wrangler sport. I took it to advanced auto to have the code read. I was told it was throwing a code indicating that there was a misfire in cylinder one. I replaced the spark plugs, wires, distributor cap & rotor button (it hadn't been done for quite some time). It didn't clear the code.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket …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!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 …1754 posts · Joined 2010. #3 · Feb 16, 2018 (Edited) P0202 relates to the #2 injector's electrical circuit and should be fixed before you start replacing parts related to P0302, as P0202 can cause the misfire. The PCM monitors the injector circuits for continuity. It also monitors the voltage spikes as the magnetic fields in the injector ...Honda Ridgeline, Toyota Sienna, Jeep JKU 2016, ordered 2 door JL 2021 on 8/10/2020 Oct 30, 2020 #2 ace3 said: Bought a 2021 Rubicon Unlimited two weeks ago. After taking delivery, I noticed the idle was a little rough. ... Constant misfire that causes the vehicle to stutter and buck, particularly between 2k and 3k RPMs. No trouble code; so far ...Other causes of a cylinder 4 misfire include: Faulty spark or ignition system. Check the spark or ignition system of your vehicle. Inspect and look for any signs of heat damage and wear and tear of all its components. Cylinder 4 misfire can be caused by a faulty or worn spark plug and faulty spark plug wires or coils.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.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 …Are you dreaming of hitting the off-road trails in a powerful and capable Jeep Wrangler Rubicon? With its rugged design and impressive capabilities, it’s no wonder that the Jeep Wr...4.0L Cylinder 2 Misfire Problem. Hey guys. Since this winter season, my stock 4.0L (~80k miles) TJ has been getting 1 reoccurring Check Engine light with the P0302 code (Cylinder 2 Misfire). :ballchain: The p0302 code made its first appearance in the beginning of the winter season temperatures (40F - below).Mar 10, 2020. Messages. 5,600. Location. Jacksonville FL, Quezon Philippines. May 4, 2020. #2. Completely remove the spark plug wire for #4 and measure the ohms resistance then compare to the other plug wires. You should try cranking the engine over in the dark and see if the spark is arcing to ground on #4 cylinder.P0303 Misfire Cylinder #3. It has been quite a while of me posting here! Glad to see the forum has remained vibrant. I have a very serious concern with my GC HEMI. Recently, I got the dreaded exhaust studs on the manifold repaired. This has happened to my Charger,Challenger, and now this GC. It is par for the course on HEMIS, so no biggie (PITA ...39 Posts. Discussion starter· #28 ·Oct 12, 2019. Before the tests this morning the engine is running good, no codes with 2 misfires on cylinder 5 The compression test is good as expected #1-170, #3-165, #5-170 Vacuum is steady at 19" at 670-685 rpm, ran a test for exhaust blockage (cat) all is clear and working as it should.Gauges, go dead, pull over, restart and fine. Sometimes throws CPS code other times not. Sometimes throws both CPS code and Misfire, other time not. What we have done: Crankshaft position sensor - fixed for day. Non OEM. Took to mechanic. Replaced camshaft position sensor. Said was fixed, Did same thing driving home.2881 posts · Joined 2008. #2 · Jun 17, 2009. Try this. Take one of your plugs wires and change it with the cylinder 6 plug wires. If it still misses on cylinder 6 you have ruled out the wires being bad. If it miss fires on another cylinder the …1 post · Joined 2017 Add to quote; Only show this user ... I had it checked says #2 cylinder misfire and have a tick in the engine compartment, I changed the coil pack, spark plugs, spark plug wires, and since it needed it any way the oil. ... A forum community dedicated to Jeep Wrangler JK owners and enthusiasts. Come join the discussion ...Cylinder 7 random misfire. I have been chasing a random misfire on cylinder 7 (and 2) that I just can't figure out. The engine (4.7) was rebuilt 2 years ago and only has 20,000 miles on the rebuild. I have replaced all injectors, coil packs, plugs (grounded core type), and connectors. The engine runs fine, occasional rough idle when this pops up.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.

Made a video outlining the misfire issue I am having + I included a DIY guide on how to change the coil on a Jeep TJ. Have exhaust clip towards the end. All help is appreciated, would like to figure out the misfire issue. Keeps throwing a cylinder 3 misfire despite normal compression, new fuel injectors, new fuel pump, new coil, new sparks. Thanks

Another thing I thought bad oxygen sensor or plug Cat converter is that a possibility. Unplug the oxygen sensor still Idle rough and threw a code for that i plug it back in and cleared it It seems to be something in that left bank right side checks out perfect. Jeep Mechanic: CraigC317. A plugged catalytic converter is definitely a possibility ...

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.Oct 4, 2018 · 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.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.Common causes of low compression are worn or broken rings and/or pistons, bad head gasket, cracked head or cylinder, burnt or bent valves or a worn camshaft. Just about any of those fixes are going to cost a huge chunk of what a replacement engine would cost. I would get on the waiting list for a new engine. Jeep Momma.Not this time. I've replaced the coil pack (new) and swapped spark plugs (looked decent). I've also swapped coil pack with other cylinders as well (in case new one was also bad). Code stays with Cylinder 2 even after clearing. I also verified spark while cranking with plug outside the cylinder. Plugs 2 & 4 were loose, I re-tightened all of them.Vacuum Leak. Clogged or Faulty Exhast Gas Recirculation valve. Faulty Crankcase Ventilation Valve. Faulty Oxygen Sensor. Clogged Catalytic Converter. Issues With Seals and Gaskets. Read on for a guide about each cause of the Jeep Wrangler engine misfire, including the solution to each cause. 1. Faulty Ignition Coil.I am having the same problem. Two years ago heard a ticking noise, took it in to find out the right side cylinder head needed to be replaced on my 2014 jeep wrangler. they fixed it with only two days left of my warranty. Now we are two years later and its throwing a p0302 cylinder misfire code at 56,000 miles.

sportsman guide credit card logingarland ties dollar treethulkirmediterranean house colors 2017 jeep wrangler cylinder 2 misfire hockey tournaments in wisconsin dells [email protected] & Mobile Support 1-888-750-2367 Domestic Sales 1-800-221-4134 International Sales 1-800-241-4502 Packages 1-800-800-5791 Representatives 1-800-323-5733 Assistance 1-404-209-2538. AUBURN HILLS, Mich., Jan. 18, 2022 /PRNewswire/ --New factory-backed, Wi-Fi-capable, Level 2 (240-volt), at-home, hybrid-electric-vehicle, wall ch... AUBURN HILLS, Mich., Jan. 18, .... leader bank pavilion seating chart with seat numbers February 13, 2023 by Jason. P0302 in the Toyota Corolla is a common OBD II trouble code. It indicates that your car'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 Corolla's check engine light to come on, you shouldn't drive your car at all.Strangeman Discussion starter. 27 posts · Joined 2012. #1 · Mar 31, 2016. So I've been getting a Random/Multiple Cylinder Misfire code for about a year now, but just every now and then, maybe once a month. engine light with flash and jeep with stumble for about 2 min. Just looking for some guidance on where to start looking. 211381990coconut cult discount code However, engine misfiring inspection costs averagely between $65 to $100 depending on your location. While some service centers may offer you discounts and low rates if you have been patronizing them before. Average Costs to Fix a Wrangler Misfire. The average cost of fixing a wrangler misfire can be as cheap as $35 and as expensive as $1,500. did jesus ortiz paz lost his daughterusual finish for a major pro sport crossword New Customers Can Take an Extra 30% off. There are a wide variety of options. 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.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 Grand Cherokee’s check engine light to come on, you shouldn’t drive your vehicle at all. Repairing P0302 should be considered a high priority.Feb 21, 2023 · The causes of code P0302 are listed below: Spark plug failure. Spark plug wire failure. The coil pack is not working. The fuel injector is faulty, unclean, or clogged. Cylinder compression is low. Excessive rotor button wear and tear. Engine speed sensor (crankshaft/camshaft) failure. Valve damaged or burnt.