Hyundai - Sonata :: 2005 - 1st Cylinder Misfire - Runs Rough - CEL Comes On

I have a 2005 Hyundai Sonata 4cyl. and have a misfire problem with the 1st cylinder. I've had it pressure checked and there isn't a problem with the cylinder, such as a ring or warping problem. I've replaced the wires, both boots, both ignition coils and the plugs twice. I was told I need to replace the ignition coil again but I wonder if there is something that is making the coil go bad. I've also replace the throttle position sensor and both O2 sensors. I had the front catalytic converter replaced because it was bogging down and very slow. It still runs rough and the check engine light is on. I was told also that I need to replace the engine speed sensor. I bought the car in Oct. of 2004 and only has 68000 miles on it.

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Hyundai - Elantra :: 2001 - Engine Light Flicker / Sulfur Smell / Rough Running And Low Power

2001 hyundai Elantra 97000 mi. perfect on Thurs. Engine light flicker, sulfur smell, rough running, low power on Friday

First thought / hope, Bad gas? Had Filled up on Weds.... I added dry gas and FI Cleaner.

Second thought / fear Cat. Converter

Third . .. . ???

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Hyundai :: 2005 Elantra Will Not Shift Into 1st Gear From Neutral

My 2005 Hyundai Elantra has 85,000 miles and we are having trouble with the gear shift. It will not shift into 1st from neutral but will shift into 1st from 2nd. We recently replaced the clutch (about 3 months ago). We are about to go on a road trip and are wondering whether we should get it checked out before hand.

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Elantra XD (2001-06) :: Hyundai Won't Shift Into Gear While Driving?

The strangest thing happened to me on the way home yesterday from work. I was driving about 110 all the way home on a highway and took an exit to my local area when i noticed as i approached the ramp i wasn't able to shift into any gears. It just felt like there was something blocking me, like a wall of rubber or something. I stopped the car on the side of the road, unsure what was going on. While the car was on and my foot on the clutch, i am able to move into all gears perfectly fine but its when i start moving i cannot go into the others. Strange. I was able to force it into second gear from first but it sounded like two plates or discs sort of sliding around on each other..maybe that was my imagination but i stopped and didn't proceed further.

While i was sitting waiting for the tow truck, i remember that the last few months it has been getting harder and harder to get into gears while driving. I would be driving and would have some resistance to get into the pocket. This progressively got worse and i guess lead to this point where i am unable to get anywhere.

First thing i thought was the transmission, but i am able to go forward in first and reverse okay and the clutch pedal was not to the floor. The clutch was recently changed, approx 20k ago.

Could it be something easy to fix? Perhaps the clutch cable has stretched out and it is not pulling me far enough into the gears making it impossible to shift. Maybe the master or slave clutch cylinder have failed? I am not sure at all!

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Hyundai - Elantra :: 2005 - Rally Hard To Move Gear Shift When Put Car Into Reverse

I have a 2005 Hyundai Elantra with approx 155,000 miles on it(I don't know if that matters). The car started ok at first. When I put it into reverse, I noticed that it was really hard to move the gear shift(which it's normally really easy). I put it back in park and let it sit for a minute thinking it just had to warm up a bit more.

When I tried it again, it was still hard to shift, but this time when it got into gear I heard a loud clunk. This scared me, so I put it back in park and turned off the car. Now it won't start. All of my lights(headlights, dashboard lights, radio) come on, but the engine won't turn over.

I don't know if any of the following is relevant but I'm putting it out here anyway just in case it is: The battery is only a year old(and since all my lights came on, I don't think it's dead)I had an oil change on Saturday. The belts were replaced a few months ago. My check engine light is on because of an O2 sensor.

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Elantra XD (2001-06) :: Engine Sputters In Gear / Runs Smooth In Park And Neutral

The title says it all. I have no CEL.

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Elantra XD (2001-06) :: 2005 Hyundai GT - No Coolant Leak But Overheating

I have a 2005 Hyundai Elantra GT Hatchback, and it is not going so well with me at the moment. My thermostat works perfectly fine, but my car is overheating. I've taken it to the shop multiple times but still doesn't seem to get fixed. My coolant seems to be fine, and stays at its level, but what doesn't seem to be fine is that it doesn't seem to be sucking strong enough into the radiator so that it can go to the engine! On the lower level coolant cap (one with the hose attached), it seems to be leaking out of there when the car is hot, as if the coolant is trying to suck into the radiator but not strong enough but yet leaks out of it since it isn't strong enough. My theory is, the cap with the hose isn't on tight enough to fully let the coolant suck through the hose, and so air leaks cause the coolant to leak out of it and not into the radiator.

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Ram / SRT10 :: 2001 Starts Fine Then Dies At Idle And Runs Rough On Gear Till 1000 Rpm

Starts fine. Runs fine till warmed up. Then dies at idle and runs rough on gear till 1000 rpm. Has only coded iac when unplugged. But would idle with it unplugged. I replaced it. Also got crank can code once while checking it ...

2001 dodge ram 1500 318 engine ....

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Volvo - V70 :: 2001/ 24T Vehicle Runs Smooth When Cold / Runs Rough With Delayed Acceleration On Warm Up

My 2001 V70 24T runs smooth when cold as it warms up it runs rough with delayed acceleration reaction ....

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Elantra MD (2010-15) :: 2014 - Shakes Like Rough Idle When Stopped At Light After Changing Battery

After changing my battery my car seems to do fine as long as you are going down the road but as soon as you stop at a light it like shakes like a rough idle but the RPM's don't move and it never dies. If you have a lot of pull (heater, lights, radio etc) on it, it seems to get worse. It was in the shop for 65 days with engineers looking at it an all they say is its normal. I say this isn't normal because it wasn't doing this until I changed the battery.

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Elantra MD (2010-15) :: Car Squeaks / Stutter And Runs Rough

Since day one there has been a squeak within the cabin, sounds almost like styrofoam cups being rubbed together! Mainly with bounces but getting worse and worse, to the point a simple turn causes it. Almost sounds like inside of car moving within body.........shifting might be better. Nothing in trunk or under seats, checked all that. Lived with it but drives me insane lately.

Second it runs very rough, and with acceleration RPM can jump to 6000 with a tap but trying to merge onto highway leaves me sputtering at 1000. Or it suddenly speeds up like I gave it a ton of gas, but I didn't change a thing.Idles loud too and "misses"

I am a single mom , my only car, dealer 40 minutes away. I just cannot lose a day of work to sit with my car for the recall etc. Will service give me a loaner for a day? Yes I will call them, I just wanted some info before I do! Not too trusting here.

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Town Car :: 2005 Runs Rough / No Codes

I have a 2005 Town Car with 40 K Miles.

Engine runs rough at most slow rpm's .

No codes and I change : new sparks plugs / new Fuel Filter / new air filter /

New oil / new ATF / good MPG , everything good but runs to rough.

Have an 94 LTC and this car runs better.

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Hyundai - Elantra :: 2007 - After Oil Change Stuttering When Stopped / Wheezing When Gears Shifting?

I have a 2007 Manual drive Hyundai Elantra with 98,000 miles on it. Prior to going to Valvoline (who I know are not the best oil change places) if I was parked with foot on clutch and brake there was a tinny noise coming from the engine. I was going to have it checked out.

Fast forward I had my oil changed at Valvoline on Saturday (2 days ago) since then when parked with foot on clutch and brake the car begins to make a stuttering/shuttering noise and is shaking a bit (in time). In addition when I shift gears and go faster there is a wheezing noise.

I assume I need to bring this back to Valvoline? Is there anything that they could have done during the oil change that would cause this issue?I didn't get the air filter but it wasn't that horrible. They of course said I should get the radiator flush and the transmission flush.

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Elantra XD (2001-06) :: Rough Idle - No Check Or Service Engine Light

I just purchased my first foreign car ever. it is a 2002 Elantra it idles very rough changed plugs using NGK and wires new fuel filter and ran 2 full tanks of high grade fuel with STP fuel injector cleaner. but had no effect on idle also have no check or service engine light. What to check next?

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Chevrolet - Equinox :: 2005 - Runs Rough When Cold

I have a 2005 Chevy Equinox with 73K miles. When I first start it up morning the car runs rough for about a minute or two and then smooths out. I took it to a mechanic who said there was oil on one of the plugs and to get rid of the car. I tried another mechanic on Craigslist and he replaced the upper plenum gaskets. It ran better for about a day or two and now the problem has resurfaced.

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Hyundai - Elantra :: 2007 - Sounds Rough At Higher Speeds

My husband and I noticed that my Hyundai Elantra (2007) sounded rough when running over 60mph. The car has 61,000 miles on it and is due for an oil change, a radiator flush, and a fuel filter replacement. My manual says that the platinum coated (versus iridium coated) spark plugs would need to be replaced at 60K miles. I was told that the car would run rough at lower speeds if it was the spark plugs.

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Hyundai - Elantra :: 2005 - New Clutch Not Engaging

The car is a 2005 Hyundai Elantra with a 5-speed manual transmission. My father and I were replacing a worn out clutch disk on my sisters car. We replaced the clutch disk, pressure plate, and throw out bearing with no problems; however, when we put the transaxles back into the transmission we noticed that they could spin freely despite the transmission being in first gear. The clutch is not engaged even when the clutch pedal isnt being pushed in. We stopped putting the car back together until we could figure out what was wrong with it.

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Hyundai - Elantra :: 2005 - CEL Came On / Catalytic Converter?

About two months ago I bought a used 2005 Elantra from a reputable dealership. I had my mechanic friend check it out before I bought it and everything seemed fine. This week the check engine light came on. I took it to a shop, they diagnosed the issue and said I needed a new catalytic converter .....

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Elantra XD (2001-06) :: Rough Running With Low Power And Flashing Engine Light - Cylinder Sparks

I have a 2001 elantra 2.0 gls. It is running rough with low power and flashing engine light. It may have a bad 02 sensor but when checked for spark only the 2 and 3 cylinders were sparking. I can confirm this because when I unplugged the 1 and 4 spark plugs it made no difference in the way it was running. Next I tested the resistance on the coil packs. Both were an even 1.5 ohms. How can it be that the coil packs are good yet the plugs aren't firing? I also have moved plug wires around and have had no success.

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