Diagnose and Fix Engine Misfires - Flashing Check Engine Light , Rough Running Idle , Low Power

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Is your car idling rough or experiencing loss of power? Are you getting worse gas milage or having a harder time getting up hills? In this video Josh takes you step by step through the process of diagnosing and fixing common engine misfire issues.
For step #4 please watch this video: • Replace Ignition Coils...
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[@judgedrew2076]

If only all car youtube videos were as good as this! Simple and to the point.

[@jamiebrock193]

I have a 2006 chevy Impala and it is doing funky things. I recently had my oil leak fixed and IT'S LEAKING AGAIN!!!!!!!!!!!!! After 1 month of going good. Then, while idling it idles rough and sometimes cuts out while driving. Not cutting out as in the engine shuts down. Just cuts out very lightly where it causes a revving in and out feeling. Also does this while on cruise control. Going to parts store tomorrow to have codes read. I do a high mileage oil change every 3 months, meaning before I'm suppose to. I also do a transmission flush once each year. I recently changed the cabin air filter, engine, spark plugs and wires myself a couple weeks ago. I'm a female and trying to save money. 🤷‍♀️😂😬

[@generalnorth4175]

I got a 2008 Nissan Altima and This Was The Exact Problem that was Wrong with my Car My Engine Light was Flashing On and Off , & I did think it was something major but I see it’s nothing but the SPARK PLUGS , Thanks For The VIDEO

[@shawnlawrence8785]

Great video, just want to point out that depending on what type of vehicle you have, you may want to check the manual before disconnecting your battery to clear the codes. with some newer vehicles it can cause problems.

[@arjansingh9021]

U are awesome bro u saved my car and my money....god bless u.

[@enjentertainment6366]

Thank you sir! This video was so helpful for me! 🙏🏼 god bless you!

[@haylocktransport6695]

Your correct ! Spark plugs . That's what was wrong with my 5.3

[@raulvilla2825]

Thanks for this man! Simple and easy. Subscribed!!!

[@mkuc6951]

Nice! Changed the plugs, coils, disconnected the battery, so far so good. Now its chugging funny but its one less problem.

[@chrisstreet7384]

Boo!

[@hectormolina9800]

Have the same problem we’re u ever able to fiz it?

[@carlac1955]

Thank youuuuuu! This single Mom of a super kid in a school farther away (magnet school) that he loves, thanks you!!!! Subscribed!

[@bradkay9538]

I have that going on too. Thanks for the help!

[@bradkay9538]

Going to try and clean my iac. See if it helps

[@fridapena826]

Thank you so very Much. This Video Help me Alot

[@DougHinVA]

A system programmer I once new would say... "Don't assume it's complicated... the problem is probably simple or stupid... ". I went through this problem with my 20 year old Corolla.... I replaced the plugs with good platinum ones and that's it. About $30 for them and wipe the 'boots' clean of any oil and blow the spark plug recesses empty BEFORE removing the plugs (dust, dirt get into the recesses at the 4 plugs). If you are handy, the throttle body and IAC valve can be cleaned after removal. A chore... ? Yes, but a shop will want a few hundred to do it...

[@russelkantun2249]

Muchas gracias por el video muy bueno!!!

[@Esseneone]

Extremely helpful. Thank you so much!!

[@darrallhenry9725]

U a life saver bro 💯‼️🙏🏾🙏🏾

[@reeganbruno6906]

I had an intermittent CEL, it would come up when idling and start flashing, then would be solid after driving for a few seconds, just did the spark plugs but i checked my spark plug wires, one was sort of loose so it would vibrate off a little, so i just wiggled it a bit and pushed it down harder and its been fine for a bit

[@invade_]

IDLE AIR CONTROL (IAC) can cause rough idle, happened to me, easy to fix

[@jameswiley5036]

Man, thanks a million!!!

[@brendagordon206]

My engine lights been on about a month now, it flashes sometime but still has power going up hills....it shakes a bit but doesn't affect the driving. Could it just need a service as it has gone over by 1,500klms

[@twootters7433]

My 2001 Lexus was running great one minute then felt like I lost half the engine. Already knew I was dropping cylinders. Went to a place, got the codes read and it's # 3 and #4 are misfiring. I'm replacing all 6 coils and plugs. I've owned this for a year but I know the guy before did little to know maintenance. When I bought it I changed the oil right away. It was water thin and coal black and smelled horrible. Cabin filter had never been replaced. Just things like this. I expect to see rusted, nasty old spark plugs. Just hope they aren't seized in.

[@HR-wd6cw]

A fast way for checking ignition coils is to pull them (one at a time) while the engine is running and see if the engine changes sound or starts to misfire (don't do this for long though) but it's a quick way to see if a coil is working (be careful because a good coil will continue to send a spark so keep it away from anything flammable and really you only need ot pull them up slightly -- enough so they can't fire the spark plug or transfer the spark to the plug). If you suspect one is bad, you can sometimes swap them and see if the misfire follows the coil or changes cylinders when coils are moved around.

[@dadaunderconstruction1497]

So what if you pull them out a little and, it still runs as if you hadn't done it ? How do you diagnose that issue ? Inquiring for myself I have this issue right now ?

[@thomasprice3667]

If nothing changes when pulled then that cylinder isn’t firing. Could be bad spark plug or coil. I’d start with a spark plug as it’s much cheaper to replace.

[@singkewlaw1594]

THANKS SO MUCH, I CHANGED ALL PLUGS AND EVEN ONE COIL AND STILL IDLES ROUGH. I ORDERED A SET OF COILS FROM AMAZON AND I PRAY THIS IS IT AS IT'S NEVER RUINS AS WELL AS IT DID ON DAY ONE!!

[@otbmal7618]

Wat happened

[@treatpeopleright5483]

Did the new coils fix the problem?

[@shawnouko4031]

We want to know😢

[@itsregs9110]

I went running around to 3 different autozone for my parts but more cheaper than taking it to the shop

[@gracienclaude1371]

Thank you bro for your help I appreciate.

[@flipparachi3116]

Wat

[@MashburnJoyce]

Awesome. Thank you so much.

[@amxadbhai4401]

Very good teacher

[@aceboogie1157]

My 2000 eldorados engine started knocking today and lost a lot of power going up hills. I stay in Oahu do you have a shop out here or recommend a good one?

[@jenniferjackson4173]

I just had a tune up so it shouldn't be a spark plug, but I still think it's a misfire. And btw, your Mr. Fire. Js. ☺

[@ViSion3.14]

Ok question, hoping I get a respond 2007 king ranch f150 had a cylinder 5 misfire and a catalytic converter code, check engine, I repaired the cylinder 5 misfire, and the check engine goes off.. now the truck runs rougher in idle.. please give me something g

[@Pilot_10]

Handsome and helpful. Thanks Josh!

[@MrKiet76]

You're one of the few that I trust with my car problems! Keep up the good work. And a sub from me to help with your journey!

[@BudgetMechanicHawaii]

Mahalo!

[@MrKiet76]

@@BudgetMechanicHawaii yw! may mana O aka mai guide your way to success!

[@cassieelliott5669]

Okay so what do we do if we are still having rough idle and we’ve changed all the spark plugs and 3 of the ignition coils. (4,5,6 to be precise I believe because the code reader noted these). Check engine light is still on and it’s still not driving or sounding right. Does this mean my engine computer is messed up and is causing the misfiring?

[@marelmaynard77]

My 2014 gmc sierra 5.3 is throwing po300 code. Now also catalytic converter bank one and two. It runs good until engine is warm then the misfire starts. Any advice is greatly appreciated

[@MrSprogginz]

Excellent video - Clear and straight forward. It feels like I've spent my whole life on the internet looking for advice about this and now I've now find yours. Thank you! I have a question please that is directly related to this video - After not using my car for a month and then taking out the battery to recharge it, I have a misfire in cylinder 2 (P0302). The symptons are exactly as you have described, loss of power moving off or going up hill at times. A slow, gradual increase on the accelarator helps otherwise it starts chugging and can even hear a brief whacking noise if I floor it especially in a higher gear. It was (or seemed) absolutely fine before I left it for a month. Should I still replace the plugs? I thought it might be some kind of moisture getting in after leaving it for so long but it's still the same after a long drive. I'm worried that I might be causing more damage. Thanks again.

[@BudgetMechanicHawaii]

A few things could happen from a car sitting including bad gas clogging injectors, oil leak pooling and fouling plug/coil, animals Messing up wiring, or maybe it’s just coincidence. Best thing is to pull the plug and inspect it, and move on from there.

[@IkelosEU]

@@BudgetMechanicHawaii I was drivine and my car and i used the big lights to do a signal to the guybin front, suddenly car reduced speed, opened ABS light and engine flashed. The flash light its still on, but can I ask you what you believe the problem might be? I tried again to flash the big lights it happened again, ABS flashed and car reduced speed.. I would appreciate if you can give me your advice

[@davidmckendrick1427]

I got a 2003 Jeep Liberty 3.7 I change the coils spark plugs and the catalytics a brand new fuel pump and it will start no problem sometimes it has a misfire in Cylinder 6 but sometimes when I press on the gas it rev up and down continuously but there's no codes for everything can I get some help please

[@user-so7dj3tw4d]

The budget mechanic in Hawaii? That sounds like an oxymoron if I've ever heard one. But you know your stuff props brother you got a sub.

[@BudgetMechanicHawaii]

Mahalo!

[@carloswaters9937]

I have a 2012 Hyundai veloster. Miss firing on all 4 cylinders. What you think the problem is? Has close to 90.000 miles on it.

[@hassongamer3260]

I have rav4 model 2009. Error in cylinder 3 when I reach high speed or climb high level. Changing sparks and coils plus swapping injectors but still same code. Checking cylinder 3 compressio it is ok.what do you purpose please.

[@benb7727]

Try this cheap fix first. Pop out the mass air flow sensor and spray it down with MAF cleaner. Let it dry. Pop it back in. $10 or $12 at any parts store. You’re welcome.

[@mrcoolxoxo7007]

I tried this. I think My MAF might be bad. Cleaned it once already

[@TrustGodFearNothing]

I'm having a problem now where I warm my truck up in the morning the truck and go to leave after its been idling, it's idling rough and the check engine light is flashing. Once I turn it off and back on, and drive, it's ok. Until I idle it again. Any ideas?

[@taylorwalls4642]

@@TrustGodFearNothing if the check engine light is flashing you should take it to a mechanic immediately as it usually means you have a serious problem

[@Roller76]

@@TrustGodFearNothing my Dodge Dakota had revving issues, stalling, rough idle, and more. Try cleaning the Mass Airflow sensor or MAF. Plenty of videos showing how to clean it. If that doesn't work go buy a new TPS or Throttle position sensor. Get one with a lifetime warranty such as Standard. Also, undo the plastic hose from the air filter box to the Throttle body. Where the big hose connects to the throttle body look into the opening and see how dirty it looks. If its pretty filthy, look up videos on how to clean your vehicle's throttle body. Even if it means removing it which may make it easier to clean it. After its clean and reinstalled, air filter box hose is hooked back up to the throttle body, see how the vehicle runs. If not much better, you may need to replace the MAF, MAP and/or IAC sensors. But first, get an empty spray bottle and mix water and dish soap. With the vehicle running spray around where rubber hoses connect to the engine and whatnot. If any bubbles, you have a leak. Which hoses should be your first inspection but you're getting somewhere without paying ridiculous amounts from certain "mechanics". There are way more things to look for. Use the internet to educate yourself. If you're at your wits end then find a trustworthy mechanic. Word of mouth is the best, NOT BECAUSE THEY ARE SOMEONE'S FRIEND OR RELATIVE LOL.

[@Unlickable]

@@Roller76 that blinking means multiple misfires most likely. My car does it but I’m just struggling to find out why

[@usrandomz6792]

my saturn vue 2005 check engine light is blinking right as this moment my mechanic told me to just check the oil first and go from there my oil was empty like none what do ever

[@oscarvillegas1068]

Thanks

[@9665gaborn]

I have a Kia Sedona 2015 and its showing P0302 P0304 P0306, Spark plugs have been replaced along with coils . Codes are still showing same thing. Mechanic says Fuel Injectors need to be replaced. How hard is it to replace injectors?

[@sam33more94]

I changed spark plugs,6; ignition coil, 6; also the oxigen sensor, the EVAP purge valve...and still I have a flashing engine light.!! The scanner continues reading the same old codes... 0300, 01,02,03,04,05,06..and on.... please advise. Tks. Sam. From Texas

[@michaelyunis5981]

I did change spark plugs, coils but still getting misfire on cylinder 4 & 2. I think I need to change the injectors. The compression on each cylinder more than 120 PSI.!?

[@RaceCarRobbie]

2015 camaro ss... check engine light, stabilitrak and traction control lights are all on. Sounds rough when idling. I changed all the spark plugs, changed the air filter, changed oil, and cleaned the throttle body. Nothing changed at all as far as car performance, still idles and runs rough, especially when decelerating. Feels like the car downshifts too early and causes a jolting. Any ideas?

[@brysir]

I do have a problem loose power and passenger side exhaust air leak already change spark plug and coils and still happening what can I do next

[@pifas0813]

hi, there i just replace spark plug and coils on my nissan pathfinder and i have p030 how is that possible friend thank you for your videos

[@BudgetMechanicHawaii]

Misfiring? If it happened immediately after the job I would double check all the connections. If it happened a short time later, it could be the coil failing, sometimes new plugs push an already failing coil over the edge...

[@vettriley675]

I tried the replacing the gas cap , dash showed Engine check light, tracker off, VSC. I tried Sea foam . I will use the code reader when I find it. My friend said he believes it is the spark plugs.

[@RR_Production]

My toyota hilux vigo same problem but no code when mecanic scaned. Pleasw so you have any ideas

[@alberto_el_tiburon9127]

“Needed a throttle body and decarb because too much carbon was building up. Performed fuel injector flush as well and replaced spark plugs and wires. They did this to my truck 5 days ago and and the same day I picked it up my check engine light came on.... any ideas what might have happened???

[@carlosbermudezartist3690]

Found spark plug wires eaten by mice. I understand they like soy based wires. I took into a shop they charged me dignostic and said I needed a complete tune some kind of chamber and throttle body clean. All I could afford was the diagnoses fee and to get my van back and a pack of spark plug wires. Thank your for helping with Diagnosis. Next week I will afford to change oil.

[@gilbertibarra238]

Hi there my name is Gilbert I. I had came across your video & hoped possibly you could help me out? I have a 2003 Nissan Frontier so getting to coils and fuel that came up with a p0304 code for a cylinder 4 misfire I had someone change my spark plugs when trying to find the issue & he is did inform me of oil on spark plugs but that he would need to do something but he ended up moving states & since I seen this videos I was the wondering do I need to replace both the valve cover gasket & the intake manifold gasket’s & also if I need to go that far do I replace the ignition coil for cylinder 4 only or all 6 & if I’m that far clean or replace fuel filter’s ? Please let me any advice you might have to let me know what I should do i would really appreciate it !

[@thegrimreaper9623]

I need help, i removed my car's battery to jump start another car but when i replaced the same battery my engine light started flashing

[@WRR3]

Thanks. Helped alot

[@nicoleriley6091]

Do I need to reset my throttle body after changing power control module

[@staceybryceadams9276]

I got p0430 code change Cat it's that simple on my car

[@dagoatac8034]

Every car is different

[@harlanmcdiarmid]

So how many cats you gonna put in before you fix what's causing them to fail

[@mh2557]

How about getting a broken solenoid out of a 99 Lexus rx300

[@tillyqueen1425]

On a Godam sideways engine I did it once dude now it might be head gasket. There's no room to see very good

[@erickramirez2094]

I got a 2015 GMC. It’s misfiring pretty bad . Engine light is blinking and stabilizer light is on also. Changed spark plugs changed the #3 coil cuz that’s what the code said. Nothing has changed. Took it to a mechanic and he checked it and said it was the cam shaft. Along with the #3 lifter. ..... expensive fix.....

[@oliverh4902]

Could the engine light cause idling? If so, would a change of spark plugs suffice?

[@Detryie]

I know this is a 1 year post but everyone else who reads this... It probably would be a good idea to check spark plug gaps,boots and check the wires for any cracking which could all cause a bad running engine

[@rogerl8488]

Help. I have a jeep that's miss fire 1 an 6 I shut the engine off an it goes away for alittle bit then comes back on. Wires been replaced coil an wires ...

[@jacquelinecastillo965]

What about honda accord 2008? We got the misfire code as well.,

[@chrisleighton8749]

What kind of code reader are you using?

[@passion4vintage559]

Hi! Thank you so much for taking time to make all the videos for us. Please help me. Here is my issue. I just bought a 2003 GMC Sonoma SLS 6 cylinder Truck . The truck shakes/vibrates really bad once started. You can literally see the engine moving and shaking. It shakes throughout the drive and also appears to shake even more when at stopped light. Just yesterday afternoon, i was at a red light waiting to make a right turn onto the freeway. Once light turned green as i was pressing the gas and turning my steering reel it became hard to where i couldn’t turn it normally and literally suddenly just died on me. Thank goodness there was no other car making a right turn on the far left lane because when my truck steering reel became hard to turn the car went toward the left side. I tried few times to start car and it started and i went to the left turn trying to turn into the 7’eleven parking lot, right when i went onto the parking it died again. This time it took more times until car started again and this time when it felt as if the car is starting i gas it to help turn on. Then i drove just across to Oreilly and the worker scanned car and a code on his machine detected Cylinder 2 misfire. Purchased NEW: Spark plug wire set 6 spark plugs Replaced it on car. Still not resolved. Upon checking the MAF sensor was no good, the distributor has a line cracked on the number 2 . Went back to Oreilly: Purchased NEW * MAF Sensor *Distributor Cap & Rotor Replaced on car with those too. Again NOT Fix still showing code Cylinder 2 misfire. Issue present: 1.Shaking/vibration on car really bad and loud. 2. Check engine light comes on and off (flashing) I do not want to guess on what it is. Can someone please guide me on what to do next that can fix this. **At this moment writing this comment, i am in the car parked at Oreilly debating what to get. ***also when i moved wire on cylinder 2 to 4 and 4 to 2…it still show cylinder 2 misfire even after moving it to 4. Do i get Fuel filter?

[@ElChilango187]

Were you able to get this fixed?

[@joser.2396]

I’m having issues with my cylinder 2 on my Nissan, already changed spark plugs and coil and it still keeps throwing me the code and rough idling.the issue is only on that cylinder. Any tips? Anyone

[@Kia._Sportage]

I was driving a make kindy fast turn in a curve, then my gass pedal went off , kindy like it shut off, i park turn the car off. The turn the car back on and it kindy struggle to complete turn onn, After try 2 it completely turn on, and light engine light went off, Then when i got off work like 8 later, the engine light came back and start flashing and i think like i hear somethiig clicking in the engine.

[@Rob_Frmthe_NorthSide]

My 2004 Yukon engine light flashes when I do around 70mph, my manual tells me to just slow down until it stops. What could it be and what should I do?

[@BudgetMechanicHawaii]

You need to get your computer codes read and start from there.

[@jr.6155]

its your catalytic convertor

[@its_beautybee520]

Will a cylinder misfire cause a car to cut off or not crank up?

[@CaptainBlackBread]

What do you recommend for somebody with OBD1 which doesn't work anymore?

[@justinhadababyitsaboy7477]

Just making sure you are using an obdI capable code reader, every parts store around me only have the OBD2. I fixed mine by finding the power source inside the obdI casing with an ohm meter and re running power to it, not the perfect fix but it worked. If it's got power then I'd check the ground and see if anything else has a Open loop fault on the meter. Hopefully this will help

[@neshia9060]

Could it also be a ecm problem? I recently purchased an 07 saturn outlook and I'm experiencing these problems as well now after a few days of having it. The code reader said the mass sensor needed to be changed, I've had it changed and it is still running rough, my temp hand and gas hand aren't working, it doesn't show what gear I'm in and it cuts off. Even the radio went out on me.

[@BudgetMechanicHawaii]

Yes it sounds like you have some electrical problems! Could be computer or even your instrument cluster. You need someone with a good scan tool to poke around

[@jamedkeo]

Test alternator, check grounds

[@bristianmelz9568]

My engine light 💡 is blinking and I saw one of the exhaust manifold are missing a bolt and it just slid off I have to get back home what do I do

[@coltc5360]

Did you make it?

[@brianakers1044]

Bonneville 04 3.8. Top and bottom coils not firing, changed ignition control module, change the crankshaft sensor's still nothing. Changed the coils, help man!!!!! Showed a miss fire code

[@mrpoohbearlvr]

How about this. My 2006 Chevy Aveo,yes an Aveo, 47K miles, kept in top shape. The CEL flashed yesterday,2-3 mins. Then stopped. Then my Sony aftermarket stereo ,in the car 3 yrs,started to flash through its settings,the faceplate colors changed,etc. But still played the CD in it.Then it stopped. No power loss,runs smooth,no hesitation,no smoking,nothing. Pulled the battery cable to erase the CEL, it went and stays off, so far. Just a fluke? Battery is 8 months old, E3 plugs, 1yr. Trans. shifts fine, I'm stumped. Ideas??

[@thejcc5285]

Ever figured it out?

[@closeenoughproductions318]

I have had a random misfire for a couple of years now. Multiple mechanics have tried finding the culprit, with no luck. Done multiple fuel and intake cleanings, replaced intake gaskets, new spark plugs, nothing has worked long-term. Sick of spending money at shops and having my car tied up for days so I've just let it run as is. So frustrating.

[@Rol0123]

Sell your car and get something different at this point.

[@Juice-jx1pr]

Probably the catalytic converter

[@bryantlewis8668]

have you tried to see if your coil pack are plugged up in the right order

[@nvrgvnup4346]

@@bryantlewis8668 would u have any suggestions on one that’s wanting to chug off n on , but gets literally bouncy beyond really needing / wanting to drive it . i mean , it’s just something u know. Hooked it to the machine it said ‘ cylinder #2 and a spark plug “ I think I said that right … but yea … it’s still the same after replacing the two . I’m not close to town . should I have unhooked the battery a few and reset anything? or do u have any other suggestions? Ty …

[@charlieochoa8247]

@@nvrgvnup4346 un plug the wire connected to to the cooils ONE by ONE and if u unplug one and the motor starts vibrating that means its in the right place amd its working. If you have your wireset connected wrong the motor will definitely move alot making it seem like you need motor mounts.

[@whitewalker9622]

Could you get missfires from a bad knock sensor?

[@TKD187]

I just replaced the coil packs that were $300 in my wife's 2007 Nissan Altima now after it gets hot it runs very bad if you try to take it easy it seems like it might stall out but it won't if you press the gas to the floor that thing will take off but the check engine light is flashing the check engine light has been on since she bought the car so there's something minor making the chickens and light coming on but right now it's something major and I know I'm going to get misfire codes but I've already changed the coil packs and spark plugs... Yesterday after I got it hot and running and it was running like crap I lifted the air filter up and it seemed like it got a little pep so it might have something to do with mass air flow sensor I hope I do not want to take this car apart again 🤦🏻‍♂️

[@Arahsaka]

Instructions unclear, car started on fire

[@shaunhardy93]

I changed my ignition coils and spark plugs on my 2010 Jeep Compass but my check engine light still says cylinder 4 misfire I don’t know what else to check for. Help please

[@BudgetMechanicHawaii]

If you’ve cleared the engine light and it’s still coming back it would be time to check injector on that cylinder and make sure it’s working (or try swapping with another cylinder and see if code changes). Also possible your new coil isn’t getting power (ignition problem) Also you might need to get a compression test done and make sure you don’t have valve/ring problems

[@RAndrewNeal]

If you're still having issues, it's worth checking the spark plug wires, and the distributor cap and rotor, if your vehicle is equipped with them.

[@lenrobledo67]

I have a 2000 Suburban. I replace the knock sensor and the knock sensor wire it ran good for a while engine light came on and it reads knock sensor or bad or low voltage. now can that cause the car not to hesitate to start or misfire and there's days that it start with no problem and runs good..

[@krowscott]

Did you resolve this problem? I'm handing the same problems with my 03

[@Towerdawgg1979]

I had my car scanned it showed 02 sensor lean or high and secondary was a misfire and my car just all of a sudden it started spitting and sputtering check engine light is blinking

[@mayoman8565]

after i bought gas it skipped for a bit now it doesnt it gave a p0300 code . I think I will reset battery then see

[@nabeelriaz4593]

HI, MY CAR MITSUBISHI CARISMA MODEL 2000 CRANK BUT DID NOT START, WHEN SPARKS IN THE SPARK PLUGS ARE WEAK AND WHEN THE IGNITION ON , THE ENGINE CHECK LIGHT IS FLASHING, EVEN THE OBD SCANNER GIVE ERROR OF COMMUNICATION, CAN'T READ THE CODES, PLEASE HELP.

[@BudgetMechanicHawaii]

Did you try scanning with a couple different devices? If you are having communication errors and ignition problems etc. you may be looking at a bad computer...

[@stovepipe671]

i have a 1998 2.2 liter in my s10 my truck runs great then after 20 min or so it has no power idels rough and almost dies check engine light blinks when running rough but stays on when running good wonder what could be wrong thanks and god bless

[@BudgetMechanicHawaii]

Get that engine code read!

[@arjunpatel3709]

I have 2010 bmw x3 180000 mile im getting random misfire code p0304 and p0306 i have replaced new sparkplugs , coils, replace valve cover gas gasket cleaned the MAF sensor ,cleaned the fuel injectors every possible things i can think of but those misfire code keep coming back and car getting rough idle at low rpm , do you have any idea what could be wrong or i can try to fix this problem car runs great on highway but at stop it hesitate

[@BudgetMechanicHawaii]

I would try swapping injectors around, clearing codes, and see if that changes anything. Also might be time to get a compression test done and make sure you have proper compression

[@arjunpatel3709]

@@BudgetMechanicHawaii compression is around 130

[@williammize8270]

I've done everything to my corolla got dead cylinder not working

[@jackfrost969]

Could the spark plugs do this. 1:35 thxs👍

[@hemidart7]

My 2007 city golf 2.0 is running extremely bad but only when its wet out and when its dry out runs fine But when i take it to the shop NO CODES I've changed wires plugs nothing and I mean it runs so bad i think its gonna break something what do you think? remember only when its wet the more moister or rain the worse

[@eddieclark4477]

Check out ur PVC valve. Pull the valve out of the valve cover and shake it. If it rattles the valve is good. If it don't rattle replace it. If its good check all the vaccum lines to the PVC valve for blockage/disconnected/crimped hoses as well.

[@passport619]

Got a 2006 Merc S430 with a misfire on cylinder 3 at right around 4k rpms. I changed plugs, wires, maf, air filter, fuel filter, coil packs and checked injectors for a clean spray pattern and im still misfiring 😖 Any recommendations appreciated.. Compression check? I switched coils and plugs around to make sure i didn't have a defective part as well. Just always cylinder 3 ☠

[@LeviWiley-yf8vo]

Could be a leak in valve cover or intake manifold. That's what kept causing mine and I just had to put new gaskets on them

[@missjaayvee]

My check engine light started flashing as I was going up a hill and would not accelerating was very slow so I stopped parked to the side and it was still flashing then I turned it off waited a few minutes turned it back on and no light came back on and drove normal again any advice on what to do? Doni take it to get codes read even though light is not on now

[@BudgetMechanicHawaii]

I would get the stored codes read and see which cylinders it was. Chances are it’s going to happen again, better to start troubleshooting

[@nathanamlej4886]

I got jeep grand cherokee 5.7L v8 and it same problem need help here

[@user-kj6cw1wl7u]

I dont have power to the coils number one. how to check the wires?

[@orlandodavidson2321]

Do you gotta do something uf the have oil besides replace?

[@BudgetMechanicHawaii]

Good question!

[@onlyme8870]

I have no codes. Limp mode engine light flashes. Replaced coils and plugs oil change still same issue. Another odd thing if I press the deforst button the doors lock. 2014 Fiat 500l lounge 1.4l.

[@onlyme8870]

@@laurasyn820 All good there too. And again it's working 100%. Heat wave is done. I think its electronic. Because it seems more anomaly than anything else. As I mai tain it well. But its not fun when its acting up. But for now its fully tuned up again in less than a year.

[@kaseycasece1340]

YOUNG MAN , MY WAS > " FUEL PRESSURE REGULATOR "/ SMELLING BAD GAS , ROUGH RUN

[@leroymaldonado3315]

I have a 09 charger rt 5.7 my car lately has been stalling out when trying to accelerate also when I tend to press to accelerate faster my check engine light starts blinking but when I slow down it stops but it starts to shake

[@zephyros4067]

Having same issue

[@mungwatk]

Same issue

[@jessie-.-5615]

Did you find the solution?

[@leroymaldonado3315]

@@jessie-.-5615 yeah man i went ahead replaced a lot of stuff spark plugs fuel pump etc and still never worked left it parked for 5 months then finally a friend that was a mechanic at the dodge shop told me it was the computer replaced it the same week been 5 months running fast and strong to this day 60mph 4.9secs.

[@5cbst]

My engine light is flashing when travelling at 100kph. Car also sometines loses power when travelling at a lower speed so I have to quickly restart the car and it fixes the problem temporarily.

[@royale9998]

Did u find a fix im having the same problem

[@5cbst]

@@royale9998 nah, apparently it's a problem somewhere in the pistons or piston rings so I'm just gonna get another motor

[@jameehavoc2201]

Code reader says cylinder 2 misfire. There white smoke pouring out my exhaust, smells like fuel, pretty sure thats fuel leaking out of my exhaust too. I put a new fuel injector in cylinder 2, and a new coil... I have spark plugs but haven't put them on yet... Its still smoking out of my exhaust. My friend thinks it could be the connector to the coil pack? Or maybe flooded the spark plug?? Any ideas?

[@BudgetMechanicHawaii]

White smoke is usually water vapor, which indicates a blown head gasket. are you sure it is not blue?

[@aaron5785]

Check your engine oil on your dipstick for any evidence of coolant in your oil indicating a blown head gasket. I would also check for a faulty plug wire or possibly a failing ignition control module. Also check your fuel pressure regulator could be failing, as well as your fuel pump. And I would change your fuel filter.

[@mrchrissmith410]

Thank you sir....

[@horaciotello8017]

Have a 97 Tacoma 2.7 I replace spark plugs, wires, fuel filter, air flow sensor, fuel injectors, took it to the Toyota dealer for a diagnosis they did the compression test was fine but they told me that #3 injector was bad my question is if the injector is not the problem what else can it be?🧐

[@Sethskates]

Damn did you fix it ????

[@horaciotello8017]

@@Sethskates I did, replace the computer and fix the problem.

[@Sethskates]

What part was it. What you mean you replaced the computer? The ecu? Please be more detailed since im having the same issue would help me out

[@horaciotello8017]

@@Sethskates yes the ecu, was not sending the voltage needed to the injector in my case was cylinder #3 the ECU cost me $218 dollars on eBay and it was relatively easy to replace😅

[@Sethskates]

Thanks much appreciated i got the code p0303 today wish me luck