Ford Aerostar :: 1996 - Consistent Misfire On Cylinder 6 / Fuel Injector Change
My 96 4wd 4.0 Auto has a consistent misfire in the #6 cylinder. I've change out the plugs and wires and am considering changing the fuel injector for that cylinder. Looking it over last night, got me wondering if there is a way to change out the fuel injector without removing the upper intake manifold and the entire fuel rail. As you all know, these things are a beast to work on when the engine is in place. So, is it possible? Inquiring minds want to know (and don't want to spend an entire weekend changing out on fuel injector if there is an easier way )
View 14 RepliesAccent MC (2006-11) :: Cylinder 1 Misfire
What is the easiest fix on this and what is the worse case scenario?
View 6 RepliesAccent MC (2006-11) :: 2007 - Cylinder 1 Misfire
I am currently having an issue with my 07 Accent misfiring on cylinder 1. So far, I have changed the spark plugs, which were due anyway, and checked the coil pack. Every coil on each cylinder reads 0.8 ohms, so I am going on the assumption that they are ok. Didn't see any issue with the connector end inside the boot. However, when I changed the plugs, I discovered that I had oil in the plug tubes on 1 and 4. So I changed the valve cover gasket and tube rings and cleaned all oil residue from the packs. I have also checked the short coil wire harness right on the packs themselves. Have not tried to check further because I don't know which pins that harness goes to on which ECM connector. I still have the misfire, and I'm not sure where to go next. I was thinking compression or fuel injector. I don't have a compression tester, and I assume the only way I can check the injector is to swap it with another cylinder?
View 10 RepliesAccent MC (2006-11) :: Multiple Cylinder Misfire
My car has been really acting up lately (AGAIN) so I took it in to have it looked at and they came back and told me it had multiple cylinder misfire, and they wanted like $1200 to fix it. What in the world does that mean and what is entailed in fixing it? They mentioned doing a full maintenance on it.
View 9 RepliesAccent MC (2006-11) :: 2007 - Cylinder 3 Misfire
2007 accent randomly starts missing. throws cyl.3 missfire. replaced all plugs and cyl.3 coilpak.
View 2 RepliesAccent MC (2006-11) :: 2009 - Misfire On Cylinder 3
I have a 2009 Accent. It has a misfire on cyl 3. I've changed the spark plugs... no change. I swapped around the coils... no change. The misfire stays on cyl 3. What are my next steps to isolate and resolve this misfire?
View 10 RepliesAccent MC (2006-11) :: Several Error Codes - Cylinder 3 Misfire
My 2011 Accent's engine light came on recently. The mechanic said it was a cylinder 3 misfire and recommend changing the spark plug and coil pack for that cylinder. We did that over the weekend. Now the light is back on and has read 5 codes in the past 12 hours (4 at one time). They are P0303, P0304, P0003, P0403, and P0100. I have looked the codes up and can't discern if any could be caused by one main issue. About a month ago it read a code for the oxy sensor, but it went away and never came back.
View 3 RepliesAccent MC (2006-11) :: 2008 - Running Really Bad / Cylinder 1 Misfire
This morning my son started the 2008 Accent and it ran really bad, he shut if off started it again and still ran really bad and check engine light started to flash. Shut it off and ran for the bus to school.
Went and picked up a OBD scanner and found a cylinder 1 misfire. Tried to start it and had a really hard time and when it did start ran like crap and smelled gas. Checked the codes again and now got Multiple cylinder misfires, cylinder 4 misfire and cylinder 1 misfire.
Pulled the engine cover to pull the coils and plugs and I find a ton of mouse crap. No signs of any chewed wires or anything that I could see. Drove it to the local Hyundai dealer tonight because I am worried that it may not be the coil packs. Drove OK to the dealer. My brother is the service manager at the local Mazda dealer and he sees a lot of mouse damage. Said I should put a couple of old socks with moth balls in the engine compartment to deter the mice.
Accent MC (2006-11) :: 2010 GL - Misfire On Cylinder 2 / Code P0302
I have a 2010 accent GL manual sedan. It has 104,962 KM on it, the warranty expired December 18, 2015. Since February this car has become a frustrating money pit. Being in the dealership constantly for repairs, then within a week something else 'happens' and back it goes. Spent almost $5000 in 4 months on repairs. Decided that's enough and will do majority of repairs myself.
Yesterday while drive on the highway I had a sudden loss of power and a check engine light came on. My scanner which has become a standard item in my glove box indicated a misfire on cylinder 2 - P0302. I limped the car home, in 3rd gear I was having a hard time staying above 2000rpm at 60km/h. at lights I had to use hand brake so I could keep my foot on accelerator, revs were dropping below 300.
Today I replaced all the plugs (all 4 were still in good or better condition, #2 showed signs of a slightly rich burn and #3 a slightly lean burn), replaced all coil boots (no cracks, no burns, and still pliable), removed and cleaned all the injectors. Error code P0302 persists.
Accent MC (2006-11) :: 2008 - Code For Cylinder 1 Misfire / CEL Flashing
I have a 2008 Hyundai Accent that is giving me one heck of a headache. I keep getting a code for number 1 cylinder misfire. When you start it up it runs fine for a while then the CEL will flash and it will start running rough. As soon as I shut it off and restart it, it runs fine. I even experimented with it this morning on the way to work. It started running rough doing 60, I put it in neutral, turned the car off and then right back on, put it back in gear. It ran fine the rest of the way to work. I have swapped coil packs, fuel injectors, spark plugs, and have even hang tested another ECM. Still number 1 cylinder misfire.
View 8 RepliesAccent MC (2006-11) :: CEL Flashing / Rough Idle - Cylinder 1 Misfire
I did not get the specific cel code but its what the guy told me at autozone.
Long story short. Washed engine, let sit for about 30 mins. Car started with flashing CEL and was "puttering" and very rough idle. Drove home took intake off and replace with stock, took spark plugs out and they were not wet. Then let it sit for about 15 mins. Started just fine. No CEL at all.
The accent saved the CEL and the guy told me that Cylinder 1 had a misfire.
My question is, should I do anything now even though the car seems to be running ok?
Accent MC (2006-11) :: 2009 - Idling Rough / Cylinder 2 To 4 Misfire
So recently my 2009 hyundai accent has been idling rough, and has been very sluggish when accelerating. Usually the rough idling is the worst when the car is first turned on and tends to tone down as the car keeps running. I had the codes red and I believe it was C0302 C0303 C0304, saying that cylinders 2-4 were misfiring.
I replaced the spark plugs which didn't fix the problem, although cylinder 4 did have a small amount of oil above the spark plug and a little bit more below the spark plug, I am not sure if that means anything useful or not. I don't have a way to check the coils directly but I swapped coil 2 with coil 1 and checked the codes again and it was still cylinders 2-4 misfiring, so I would imagine that means the coil isn't the problem. I then tried spraying WD-40 around the vacuum tubes, and if the intake manifold is on the back of the engine I tried spraying it around that gasket as well, but I didn't notice a change in the idle speed.
At this point I am not entirely sure how to proceed, from what I have read the issue causing a misfire would be either there isn't a spark, which seems unlikely at this point, or the mixture of fuel to air is wrong. That is the part I am unsure of how to diagnose/
Accent MC (2006-11) :: 2008 - Multiple Cylinder Misfire Codes
We bought the car used for my youngest daughter and it had a couple of codes in it. 1st was the o2 sensor.. easy fix, grabbed an OEM one and stuck it in. Then there was the Cyl 2/ multiple cyl misfire codes that kept getting thrown.
I've seen a bunch of post about people pretty much doing the same things I started out with and still having a problem.....
1) Swapped around all the coils.. still got a #2 misfire... So, coils are good.
2) Swapped in NGK Platinum plugs with a .032 gap.... still getting misfire.
3) Replaced the crank shaft position sensor...... still misfire
4) Noticed that there was an Ebay injector in the #2 cyl...... when I pulled the plugs, that cyl was running a little lean..... bought an OEM injector to go back in there...... still getting misfire
SO, I tried using a propane torch head and putting out gas around the intake to search for vacuum leak and got no response....... so, for the heck of it, I went old school and grabbed a can of starting fluid and started spraying it on the intake around where it bolts to head... bam... found a vacuum leak on #2 cyl....... ordered an intake gasket off of ebay, spent about 3 hours on it pulling the intake and replacing the gasket,( the bolts had loosened up over time and there were small tears in the gasket allowing it to suck air) .. put the new gasket on, cleared the codes and it's been running perfect ever since.
Check for a vacuum leak where the intake manifold bolts to the head... might save time and money.
Accent MC (2006-11) :: Random / Multiple Cylinder Misfire Detected
I guess misfires are a rite of passage for these vehicles. I purchased it only a week ago. Welcome to Hyundai...
The car has 53k kms. It's throwing P0300 and P030X on all cylinders. There was one instance of P0128. The engine runs smoothly and doesn't seem to down on power, although I have nothing to compare it to. The only performance issue is that it acts as if there is a rev limiter at 6k rpm. It sputters and stops pulling above 6k. Strangely, it doesn't throw the codes under load. The light flashes while it's running steady-state.
I pulled the plugs and they appeared to be in excellent condition with no erosion of the electrodes. The ash is slightly more white than I would expect, making me wonder about it being excessively lean. I called the dealer. They told me that coils are problematic. Replacing the coils made no difference.
That lead me here. I found the thread "Check engine light flashes then stays solid," which referenced the ECM update.
Interestingly, of the codes mentioned on the TSB, the car is having all but the last two.
- P0300: Random/Multiple Cylinder Misfire Detected.
- P0301: Cylinder 1 - Misfire Detected.
- P0302: Cylinder 2 - Misfire Detected.
- P0303: Cylinder 3 - Misfire Detected.
- P0304: Cylinder 4 - Misfire Detected.
- P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature).
- P0328: Knock Sensor 1 Circuit High Input.
- P0461: Fuel Level Sensor A Circuit Range/Performance.
Accent MC (2006-11) :: 2008 SE - Check Engine Light Indicating A Misfire Cylinder 3 And 4
I'm having problems with my accent, is been running not so good , and had a check engine light, indicating a misfire cylinder 3 and 4, i was told to put a can of Seafoam on the gas tank, but that didn't work. I replace the spark plugs (not the wire) and air filter and still running bad. Is not happening all the time (check engine light) but you can tell is running ruff at all time. I don't know if I need to change the spark plugs wires. I don't think is the spark plugs wire, they don't look bad or damage.
View 6 RepliesJeep - Liberty :: 2003 - Misfire On Cylinder 2 Code / Injector Is Bad
I have a 2003 Jeep liberty sport with 175k on it. it has a misfire cylinder 2 code. I replaced the plugs and coil packs on all 6 cylinders, noid light test on wires, compression check in all cylinders, everything works so far. I still have a check engine light for the misfire. I don't know if maybe the injector is bad for that cylinder, looks like it was recently replaced as with the other 6, or i have a leak of oil or air or coolant into that side either from the head gasket or intake gasket. the valve cover gaskets have been replaced recently as well.
View 6 RepliesBuick - Regal :: Rough Idle / Misfire On Cold Start - Leaking Fuel Injector(s)
1991 Buick Regal, 3800 V6
Having a rough idle on a cold start. After some research and closer inspection of the vehicle, I'm quite certain I have at least one leaking injector that is flooding a cylinder and causing the car to misfire on a cold start. I'm also not at the gas mileage I should be at.
So I'm wondering, is fuel injector replacement as straightforward of a job as it looks? Any major issues I could run into in doing a replacement?
I'm planning on replacing all six injectors (I can get them for $50 each buying online with a discount code), but given that the vehicle is so old am I better off just replacing the faulty ones? I'm assuming pulling the spark plugs and seeing which cylinder is wet will tell me which I need to replace.
And one more question: Is there a way to depressurize the fuel system when I park the car for the night, thus preventing fuel (or most of it) from leaking into the engine until I get this fixed? I've read that just unscrewing the gas cap can depressurize the system.
Ford 6.7L Power Stroke Diesel :: Misfire - Smoke - Fuel Injector Supply Line?
Went to go and start my truck this morning and noticed after it was running that it sounded like a misfire, then i seen the smoke... I shut the truck down and lifted the hood and seen that somehow i had a high pressure fuel injector supply line on the Lh side break off. The line that goes from the fuel rail to the injector port on the valve cover (theres 4 of them on a side). There doesn't seem to be an o-ring or anything on them, they are just pressed over and tighten down.
View 6 RepliesAccent LC (2000-05) :: Cylinder 4 Misfire When Refueled
I have a 2004 Accent Gt with only 43k miles on it and I am getting a cylinder 4 misfire when I refuel. I have replaced the 4 spark plugs. The original code was random multiple and now it is just cylinder 4. I tried to swap 2 spark plugs to see if maybe there was something wrong with the plug but the misfire did not move to another cylinder. I've read about maybe swapping fuel injectors, where I can find directions on how to do that?
View 8 Replies