Hyundai - Elantra :: 2008 - Distinct Hesitation When Accelerating From Speeds Of 10 To 15 Mph
Nov 18, 2012
I have owned this car from new and it currently has 32k miles. The only fuel used has been 85 octane or occasionally a tank of 93 octane. There is a distinct hesitation when accelerating from speeds of 10 to 15 mph and I do not believe it is due to the transmission shifting. I did move to my current state,California, from Pennsylvania and was told by my local Hyundai dealer service department that because California has a different gasoline formulation from most other states as well as a summer and winter blend to reduce emissions it is recommended to run a bottle of injector cleaner every 15k miles.
View 1 Replies
Advertisement
2002 Hyundai Elantra GT 2.0L 140k miles
Symptoms:
- Intermittent rough idle when hot, slight shutter, surges between 700-800rmp
- Intermittent hesitation when accelerating, cylinder 2 misfire when hot and under load
- Misfires in all gears under load, mostly when under 2000rpm
- Code P0302 when scanned, no other codes
- Symptoms appeared suddenly, not gradually over time
What's been changed:
- Replaced spark plugs, little or no improvement. Old plugs looked worn, but generally in good shape with no significant deposits.
- Cleared code and swapped injectors between cylinders 1 and 2, after test drive P0302 code came back, so it seems that the injectors are good. If the injector were bad I would have expected the misfire to change from cylinder 2 to cylinder 1.
Inspection and Testing:
- Ignition System Testing
- Spark plug wires and primary coil are within specification.
- Secondary coil resistance is high on both packs. Could this be causing a problem with just cylinder 2? Is it worth replacing?
Spark Plug Wires: Specification: 5.6 Kohm/meter +- 20%Cylinder 1: 2.49 Kohm (Longest)Cylinder 2: 2.03 KohmCylinder 3: 1.64 KohmCylinder 4:1.36 Kohm (Shortest)
Primary Coil: Specification : 0.58ohms +- 10%Actual: .6 and .6
Secondary Coil: Specification: 12.2 Kohms +- 15%
Actual (Cold): 16.03K for Cylinder 2-3 pack and 15.94K for Cylinder 1-4 pack
Actual (Hot): 18.54K for Cylinder 2-3 pack and 18.44K for Cylinder 1-4 pack
Air/Fuel System Testing:Fuel system seems to check out. I do not believe the problem is fuel related. There are no obvious cracks or leaks on the intake manifold. A good spray of Carb cleaner all around the manifold causes no change in idle. I might try propane later. No obvious vacuum leaks.
Fuel Injector: Specification: 13.1-14.5 ohms
Actual: Cyl 1: 14.9, Cyl 2: 15.3, Cyl 3: 15.3, Cyl 4: 15.7
Compression Testing:Compression is not great, but within specification. Could the slightly lower compression in Cylinders 2 and 3 indicate a head gasket leak between those cylinders? Could this cause a misfire in Cylinder 2?
Dry Compression: Specification: 145-218psi, <15psi between cylinders
Actual: Cyl 1: 165, Cyl 2: 155, Cyl 3: 155, Cyl 4: 160
Oil/Coolant/Tailpipe:
- Oil looks normal, not brown or milky
- Coolant looks normal and is full, no signs of leaking (coolant has not been changed in a very long time, could a coolant flush work?)
- Exhaust looks and smells normal from tailpipe.
Sticking valve? How would I check this? Bad sensor somewhere? Doesn't a bad sensor usually throw a code?
View 4 Replies
My 2007 Hyundai Elantra SE (Automatic, 69,400 miles) makes a grinding noise when I start to accelerate from 40 mph. I sometimes hear a noise that sounds like an airplane wheel being activated when I'm driving at lower speeds driving around town. Could this be the transmission? Who should I take the car to?
View 7 Replies
I have a 2008 Hyndai Elantra with an automatic transmission. Since the first week I have had my car when the fuel is low (under a half of tank) the car tends to hesitate like it wants to stall, or momentarily shifts into a higher gear than it needs to be for the situation; the rmp's get very low. As the tank drops further below half full, the problem gets progressively worse, especially while trying to accelerate hard; i.e. entering the highway, starting from a red light, etc (times requiring a lower gear). I have brought my car to the dealer for service three times also asking them about this problem. Each time they can not replicate the problem which seems ridiculous since it is difficult to not have the problem when the tank is low.
The day I purchased my car I was speaking with another Elantra customer who was waiting for her car in the service department. She had just purchased her vehicle as well and already had to bring it in for a fuel pump recall. I believe the recall states that the fuel pump fails and causes the car to stall, sounds very similar to what my car wants to do. I have asked about this recall on my vehicle and have been told that it does not affect my car.
View 1 Replies
My problem is gas cut on my Elantra 2001. Here is how it happened; Last week I filled up my tank with regular gasoline then added middle quality gas this time. I always use middle quality gas but once I made a mistake and filled with regular. Then my reliable elantra started stumble and cut gas few times in a day. What would be the problem?
View 1 Replies
With Eco off my sport has a nice bog/hesitation when accelerating. Doesn't matter if ac is on or not. I'm also using shell from the same station I've always used for years. The 2.0 is still pretty new. My cruze turbo had the same kind of issue and turned out to be the spark plug gap was too small from the factory.
View 1 Replies
For the past few weeks, I've noticed am occasional humming noise while driving. It seems to happen more frequently at lower speeds (around 15-30 mph, though it has also happened at around 45 mph), and it stops as soon as I apply the break. Turning the A/C on and off does not appear to have an effect, nor does opening/closing the windows (in case the humming noise was just air at a certain vibration), nor does the radio.
I took it to a mechanic, but it didn't happen when he drove it around the block, so he said that it's probably due to tire pressure imbalance, adjusted the pressures, and told me to bring it back if it happens again.
What this is, or what other things I should look for?
View 3 Replies
I have a 2004 Hyundai Elantra with 130000+ mi on it. The current engine has 96000+ mi; the original was replaced because the previous owner allowed it to overheat, blew a gasket, and apparently warped the engine itself.
I have owned this car for about 6 weeks now. The car was driven roughly 160 mi from where it was purchased to my residence; no trouble on that trip. However, within the first few weeks of owning it, the car started making a squealing noise when I turned the steering wheel. I took the car to a mechanic and had the belts adjusted. This eliminated the squealing, but I was also told that the CV boot needed to be replaced (they asked if I had been hearing a clicking noise when turning, which I had but had thought nothing of), so I also had that repair done. Problem solved. Car seemed to be running fine.
Okay, on to the current problem. Something else I had started to notice, before I had the belts adjusted, was that it seemed to hesitate a little when going up hills, and sometimes when accelerating. It was a small thing, and I attributed it to my driving style (which probably isn't the best) and the fact that my area is very hilly and the car might be having a harder time with that. Well, this problem has gotten worse; I can definitely feel the car jerking, especially when accelerating (very noticeable when going uphill). The problem also seems to be worse at lower speeds, but I'm not entirely sure that I've nailed that down.
One thing I noticed is that it seemed to become much more noticeable after the last time I gassed up the car. It seems like it's getting worse as the fuel is used up, but that's probably just a consequence of using up fuel as I drive and I'm just looking for connections where there aren't any.
View 2 Replies
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.
View 7 Replies
2003 Hyundai GLS
Starts fine, loud motorboat like noise ... then car hesitates when put in any gear for a few seconds before moving ... then drives fine. Slight shutter at low speeds 30 and under....hit the expressway and its all good. Is that the fuel pump, a relay, what? It has a brand new radiator, gasket, thermostat and cover...so its not the cooling system.
Also...the check engine light is on, the pcm code says its only issue is the cat con...I don't think this issue is related cuz it was already on when the radiator killed in the middle of the highway....the noise is new. The hesitating isn't....that's been going on since before the check engine light came on....but its getting worse.
View 7 Replies
,I have a 2004 Hyundai Elantra (stick shift) with about 104k on it. Was running absolutely great till about a month ago when I noticed that it was beginning to accelerate quite slowly. If I pushed it and got the RPMs up really high it would still pick up, but still not great performance. Also after pushing it a little hard there was a faint burning or smoke smell. Note, once it is up to speed say 60 or 70 it has no trouble maintaining such speeds. It just takes a while getting up to them. And if I really need to step on it the RPMs sky rocket with no real immediate increase in speed.
View 5 Replies
My girlfriend's Elantra (mid 90s model, I think) makes an intermittent noise when on the highway. It sounds to me like it could either be from friction or some sort of wind noise, but I suspect it's the former. It only seems to happen at speeds above 50 or so. When it occurs, it is always the same pitch and loudness -- these don't seem to vary. It's rather loud, to the point where it is pretty unpleasant to drive when this is going on. It has happened both when my foot is on and off the gas pedal. When the noise happens, it can last anywhere from just a second to up to a minute or more. I haven't been able to identify anything obvious that it's correlated with -- wind direction, grade of road, etc. The only thing I do know is that it only seems to happen at highway speeds. We never hear it during city driving. So far one mechanic has confidently misdiagnosed the problem as a bad wheel bearing.
View 3 Replies
I have 08 GS350 that has been doing some big time hesitating at low speeds. Brought to dealer and the mentioned water got into the transmissions and want me to pay for a flush.(I think they should, since it's under warranty). Can damage done now cause issues in the future?
View 12 Replies
Took car in for normal service (69,000 miles) and had Tranny Fluid Service completed. When I took the car home I noticed some slight tranny slipping while accelerating up to highway speeds (so assuming 4th to 5th gear, maybe 5th to 6th). Took it back to the dealer and after a week it had a new transmission. Took it home and it slipped again, also only accelerating to highway speeds. Took it back and they told me they reset the computer that monitors my driving patterns. OK, not exactly sure what that means. So, now driving to work this morning it slipped (or maybe hesitated is a better word) again when accelerating from about 55 mph to 60 or so. Car has never had issues like this before, gas mileage is still in the 30 mpg range.
View 9 Replies
I have a 2003 Nissan xterra se with 93,0000 mi. When i reach speeds greater than 60 mph it makes this rapid somewhat clicking noise. the dealer suggest to replace the belts. Of course that did not resolved the issue. then they claimed it was coming from the exhaust so they tinkered with it. it was gone for awhile but now it has return.
View 2 Replies
Are there any 2008 Elantra drivers out there who have a problem with hesitation and dragging at the 35-40 mph range (3rd into 4th gears)? I'm told by the dealer that although there is a hesitation which he noticed as well after driving it, there is nothing that can be done until Hyundai issues a "fix." Learned my lesson here and will probably not purchase another Hyundai. My 2003 Elantra was a better ride.
View 3 Replies
My daughter's 2008 Elantra starts fine and seems to be idling okay. But recently at seemingly random times the car will stall within a few yards after she starts driving from a cold start. She will start the car, start to drive and then all of the dash lights come on and the engine shuts off. So far she has been able to turn the key and immediately restart the car and then it is fine after that. The problem always seems to occur after she has driven somewhere, let the car sit for a couple hours and then tries to drive again. We took to our mechanic and they said there are no diagnostic codes and the fuel pressure seems good. They did identify some kind of voltage drop/issue with the mass airflow sensor and replaced it. But a day later the problem occurred again. Mechanic seems stumped. I'm very worried about my teenage daughter driving a car that randomly stalls.
View 2 Replies
My 2008 Hyundai Elantra likes to play KeepAway.
The driver's door randomly locks itself when I get out of the car. Just the driver's door. I have learned either to make sure the others are unlocked or to take my keys with me, even if it's just to pump gas.
Might this be some easily replaceable or resettable circuitry, or do I just have to live with it?
View 8 Replies
The blue cool engine light went off today. What does that mean?
View 5 Replies
The only issue I have with my newly acquired '08 Elantra is that there is no visual signal that the remote lock signal has been received. When I unlock it remotely, I get a single flash of lights, but nothing of the sort happens when I lock it; if I'm close enough, I hear the click of the locks engaging. I find nothing in the owner's manual describing any of it.
Is this normal, or do I have some weird computer anomaly going on?
View 5 Replies
I have a 2008 elantra. It has 71600 miles on it. New brakes, & tires. 2 tires were changed year and 2 more the previous year. I have been hearing a constant sound and starting to feel a mild vibration on the pedal. First I went to a mechanic and he said I need to change the belts. Got that done, no respite. Next went to another, he said i probably need to get the wheel alignment done as the tires seem 'cupped' on the inside.
Went to the dealership, they looked at it said the same abt needing wheel alignment and asked me to change the timing belt!. Still same sound. Went to Sams club to look at the tires & they said check the brakes, tires are fine, it cannot wear out so soon and its not covered under warranty. Brakes got checked out as fine. Went back to Sams again and was told to check Suspension and Struts this time. Went to a mechanic and he gave me an all clear this morning! I am going on a road trip and don't want to be in an accident!
View 1 Replies
