Elantra XD (2001-06) :: Hesitation And Stalling - Gas Pedal Suddenly Unresponsive
Apr 29, 2010
I have a 2001 Elantra with 126k miles. For months it's been randomly hesitating, meaning I'll be riding along and suddenly the gas pedal will do nothing...then about 3 seconds later, VROOOM, the gas pedal will start working again. Recently, it's started stalling as well.
I've already replaced the MAP sensor, input speed sensor, throttle position sensor, spark plugs, wires, and coil pack. Nothing has worked, but it is getting progressively worse (it stalls more frequently, and the gas pedal becomes suddenly unresponsive more often).
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My 2003 Elantra has multi spark (quad) electrodes? I have a hesitation on acceleration problem. Also feel resistance when pressing the gas pedal. I am going to change the plugs and wires. Just wondering if the type of plugs may contribute to the problem.
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I have a 2003 elantra with 90 k when I'm. Driving the car it just stalls out the car never turns off it just idles and won't respond to gas pedal. I have to put the car in neutral accelerate and drop back to drive to keep driving it. Happens at all times car at normal heat , at regular driving speeds in the street any.
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Last night i noticed a slight hesitation during acceleration. Today i had driven around in town for awhile and did not notice any hesitation. When i got onto the interstate I pushed down the peddle to pass someone and it did nothing, I let off the gas and back on and the car bucked pretty bad. All the way home it has issues when I pressed on the gas but did fine at cruising speed. I would think a fuel filter would have been a slow progression issue so I am thinking maybe it is a sensor. I sprayed carb cleaner around vacuum hoses today and did not notice any surge so I think I eliminated a vacuum issue.
2004 Santa Fe 2.7 149k
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My Hyundai Avante (2011 model 1.6) suddenly loses acceleration while my foot is still pressing on the gas pedal. Every time that happens I have to raise my foot from the gas pedal and press it again to make the car accelerate. This thing happens randomly, but mostly at speed lower than 80 Km/h
I tested the car on an empty road once; I didn't raise my foot from the gas pedal this time when the car lost acceleration. The car speed dropped to zero and the RPM gauge returned to idle (i.e. around 1000 RPM).
The check engine never light up during or even after this thing occurs. Here is the list of things the mechanic tried on my car:
1-Cleaned the body throttle
2- Tested the car with another used body throttle
2- Tested the car with another used gas pedal
3-Check the fuel pressure and injection
4- Checked the sparks
5- Tested the car onboard computer.
None of the above worked!!! Here is the strange thing my mechanic discovered, if he unplugs the cable of the Anti-lock braking system in the car. The problem never occurs.
I have been driving the car for two weeks, with the ABS system unplugged. The loss of acceleration problem never happens. I am not sure what the ABS has got to do with the car acceleration.
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Took it to the dealer today to have the seatbelt replaced, which they did. As I was leaving the lot I noticed the airbag light was still blinking so I went back. Tech brought out the OBDII and ran a scan. No errors. Went through all menus and cleared everything only to realize his OBDII had the wrong 'code card' in it. So he went and got the right card and came back, ran it again, still no errors. Went through all menus again and cleared everything including what he called an old error but not one related to the airbag. As he was walking away to go get his manager the light... just went off on it's own. (Think it was mad at the tech, NOW I know why.. then I didn't.)
On the way home, on the highway, in Texas, going uphill... the accelerator suddenly becomes unresponsive. The car starts slowing down, 65, 60, in a 70 where everyone passing me is doing 80... So, I goosed the gas, revved it over 4k and ... the gear shifted and the car sped up... WTF?! Now this car ONLY has 83k miles on it. It was mint. No problems AT all, ran smooth as butter until I let the dealer touch it. NOW, it drives like gramma's jalopy and I can't for the life of me figure out what the heck the seatbelt has to do with the other issue but THAT drastic of a change is NOT coincidence.
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I've noticed when encountering a moderate hill at 60 mph in cruise the revs might suddenly increase from 2200 to 2700 rpm, then back down slowly as I crest the hill. If I'm in manual mode it stays in 6th gear, but almost feels like a downshift. I also feel no accelerator pedal movement. Is this a two stage intake at work?
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My 2001 hyundai elantra hesitates throughout 0-15 mph I have changed out TPS,MAP,& IAC and i have did a full tune up and a transmission flush & I still have the same problem.
The one thing i did notice is the engine doesn't rev up when ac is on. Idle stays the same with A/C on or off.. when I go to plug the IAC in, with the car running it opens the valve but once i fully connect the plug it closes ... does the same thing with new and old IAC..... and the connector on plug is good..
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Engine runs fine. The pedal is unresponsive. Car will sometimes full rev when taking foot off the break, will sit at idle at other times (no indication as to when or why)
List of codes: 420, 38, 141, 226, 2133, 2128, 223, 121
I know some of the codes are from when I had a cracked ignition coil and moister caused misfiring which lead to something wrong with the cat.
Here's my main question. After everything I've read I've boiled it down to two things to try. There was one obscure post about the break light switch causing similar problems and everything else points to the ECU. I checked my O2 line for damage as that is what seems to be the most common problem of shorting out the ECU and it looks and feels perfect. So I took my ECU off, just to have a look, and the driver side plug seems to have corrosion. This was an immediate red flag, but I have found ZERO information on it. I don't know if I'm looking for the right thing or what. SO, ECU corrosion, break light switch...
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So I done some routine maintenance on my car today as I have had it just over a month. Done the oil, filter, thermostat and coolant today. This is the 2azfe, 160,000 k's.
As the title suggests, the accelerator pedal has stopped working, but I'm pretty sure its something I have done. I noticed the idle was a bit strange at times when warm, from third to second gear changes the rpm would jump up to around 1200 rpm, but if I changed from 4th to third gear the rpm would drop down to normal idle. So I decided to try clean the throttle body.
I had done this before on our 5sfe's which we no longer have. All I done was disconnected the air intake hose from the throttle body and sprayed some TB/carby cleaner in. On the 5sfe I could run the engine with the intake pipe off and I tried to on this too. It started and quickly stalled. Ok no big deal. So I put it back together and restarted it ok. It run fun. I gave it a few rev's via the engine bay throttle control and it revved ok. I never thought at this stage to check the accelerator peddle itself. Wasn't until the me n the family went to go somewhere I realised I had no throttle. Strangely, with the engine off I noticed the engine bay throttle control seems a bit notchy.
Anyway, tomorrow I'm gonna disconnect the battery to reset the ECU, and check fuses. Could the throttle bottle/carb cleaner have affected a sensor somehow? There was no problem before I done this so I know its self inflicted.
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2001 elantra 167000 miles, started a hesitation when given gas and check engine light came on. After hesitation rpms go up it runs good. Code is # 2 cylinder misfire. I have changed plugs, ignition coil and ran seaform into vacuum line and tank. Still no change. Could that 1 injector be clogged.
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Hyundai Elantra 2003 ( 140000 KMs) Okay has happened the last 2 times, after putting gas in car. When I turn the key, engine revs up pretty high, about 3000 rpm and then car stalls. Will happen 2 or three times but does start if I give it some gas...
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I have an '02 Elantra GLS Manual Trans 91000 miles and every time I gas it up I have to rev the engine until I get moving or else the engine will die. It only happens when I fill up and I do not top it off. Also it has tried to keep running after I park and take the key out. What may be happening?
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I have a 1997 F-250 7.3 powerstroke diesel with 135,000 miles and an EO4 automatic transmission. The trucks engine light will come on and the fuel pedal will become unresponsive. Until I release the pedal then reapply pressure to it the truck will remain at an idle. Sometimes I can tell it is going to happen as the shifting of the transmission at low speed will be irratic, shifting quickly into third at very low speed and RPM. I also have noticed that the light for the OD on the shift handle will light up at the same time the failure happens. I have a local mechanic that is familiar with the 7.3 engine and he cannot diagnose it unless it is failing in the shop. It only does it while driving, and the failure goes away as soon as I release the pedal.
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2002 elantra hesitates and sometimes stalls staring from rest. Worse when cold but still sluggish after warm up. Where do I start?
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When driving if you ease off the accelerator at an intersection and go again the car hesitates badly and then slowly picks up it has had new plugs etc., very worried nearly got wiped out this morning...
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I am having a slight hesitation problem on my 2002 gls. When the car is cold and I am shifting with low rpm there is a slight hesitation untill higher rpms then it seems to clear. I wouldn't say a "stutter" or enough to "buck" the car but definitely noticeable. The strange thing is when the car gets up to temp it seems to stop. Almost like a carb on an older engine.
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I purchased a 2001 Ford Focus 7/17 from a Ford dealer. While my daughter was driving, at a left turn, the engine light came on, the car stalled, and the steering wheel and gas pedal locked up. A friend did a computer scan and said the code came back that 2 sensors, the crank shaft and cam shaft sensors, needed replaced. So we had them replaced.
About 4 days later, while driving home from school, on a right turn, the car broke down again on my daughter. She said the symptoms were the same, engine light came on, car stalled, the steering wheel and gas pedal locked up. So we had it towed to a local Ford service department. They said the ignition coils needed replaced and the valve cover gasket would eventually need replaced (per the mechanic, this wasn't directly related to the issue but a small leakage was found). So we let the Ford mechanic replace the coils and the valve gasket cover. They ran several tests and put 20 additional miles on the car without failures or issues, scans came up clean.
So while driving to school this morning, on a u-turn, my daughter experienced the issue again....car stalled, engine light came on, steering wheel and gas pedal locked up. After sitting a few minutes, the car started up so she drove it home and hitched a ride from dad to get to school.
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I just bought a used 2004 Elantra that has 97,000 miles on it. When I took the vehicle out for a test drive it was smooth and quite. That was on Monday its now Saturday less than 300 miles later and the check engine light came on and it is having serious hesitation issues?! I am going to take it back where I purchased it from on Monday when they open but in the meantime I would like to know if its could be something simple?
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I can get it started and let it idle for an hour....idles smoothe. As soon as I try to move the car or step on the throttle...it stalls.
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When I so this its like pressing in the clutch and revving it but my car is an automatic. During the upshift and downshift there is no jerking or hard shifting so I would assume this is OK? And is full throttling your car every few days bad or good?
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