I have a Hyundai-Accent 1.5 GL, Auto, year 2000 car. I bought this 4 months ago and ever since it has been giving the check engine signal. However, running conditions of the car has been normal and therefore, I didn't worry about the check engine signal. Now, the engine is rough idling for few seconds when I start the car in the morning, and then it comes back to normal.
View 12 RepliesI have a 2000 Accent with 90k miles. The last week or two, it takes about 5- 6 seconds of cranking to start when the engine is cold. Having had the car since new, I know that it's not normal.
The engine seems to crank strongly, and once started idles and drives well. This occurs once about every 4 starts when engine cold. Warm engine starts normal.
Changed plugs - no difference. Maintenance current per owners manual schedule.
Sounds like a squirrel knocking on the rear hatch for a few seconds. Is this the fuel pump by any chance??
What i have noticed is that the relay clicking in the CECM is no longer clicking, yet now i hear this knocking in the rear hatch area when i start it up after it sits overnight.
Here's what is going on with my 2000 Dakota V6 3.9L V6:
After sitting for at least a couple of hours, the truck will crank but not start. After 3-5 tries, the truck does start but idles roughly at a very low RPM for 10 seconds or so and then stalls. I turn the key one more time and it starts up great and idles and drives normally. This behavior is very consistent. I have only driven it about 5 miles after it started doing this, because on that trip, the engine stalled while I was driving. Occasionally the MIL comes on and gives P0443 as the code. Question is, can the evap purge solenoid cause this behavior if it is going bad? I have inspected the vacuum lines, and they seem ok.
One more note: When this first started, I was pretty sure it was the fuel pump. Replacing that has not fixed the problem, and the fuel pump relay is good.
My car is standard 5 speed transmission, when my car is running my idle varys between 800ish to 1500 intermittently within seconds and if I don't drive it after starting the car it will stall on me (in neutral) after the rpms go up and down about 9 times.
The thing I found is if I disconnect my idle air control valve attached to my throttle body it stops the jumps in rpm. I have tried replacing the valve with one of my friends control valve Hyundai accent 2004 that works and fits perfectly on his doesn't work on mine. Right now I have my idle air control valve disconnected at the moment but i want to fix this issue because my rpms are at 1300 at idle.
A few days ago, I went to start the car, and it will start, and idle fine for a few seconds, and then begin to run crappy, idle down, and die. I tried starting it, and giving it some accelerator pedal, and it dies. I changed the timing belt, idler pulley, and tensioner this summer, so I'm ruling out a bad timing belt. There is no check engine light, and I replaced the plug wires because when I removed the cover, I noticed one of them was worn in a spot, and the wire shielding inside the rubber insulation was visible.
View 11 RepliesI have a 2000 Accent with about 150,000 miles on it. Recently I have noticed that when my car is sitting in an intersection, the car appears to idle roughly. I would't exactly say that the car is idling rough, cause it stays at a consistent RPM while in drive or park, but the engine gets louder and the steering wheel starts to vibrating. When I slightly step on the gas, the vibration goes away. Also, when I put my car in park or neutral, the car quiets down and the vibrating stops.
I was wondering if it could be the throttle position sensor, or maybe a broken motor mount, but I haven't had a chance to look into it it. I did replace the purge control valve last week, which slightly improved the vibrations.
This is what my car is doing after it warms up. It will do it then stop, then do it again and so on. I am pretty sure when the motor is under load it runs a little rough but is hard to tell. The car has 178,000 miles on it. timing belt was done at 113,000. I just replace the plugs and wires changed the oil and the air filter 1,000 miles ago. and it will still do it. I am at a loss as to why it keeps doing this. I have tried injector cleaner, sea foam and engine restore. What would cause this? The check engine light is not on. i replaced the crankshaft positioning sensor about 40,000 miles ago.
Its a 2003 hatch with the 1.6 5 speed .....
I'm an Accent 2000 gs owner and since a few days i had this problem. It has a bad idle and looks like it will stall... need to give some gas to stay alive.
Bad acceleration too, it misses some gas. (puffing, rumbling, shaking a bit). After accel, it's ok until the next red light.
Now I can't even drive cause it's worse. (too difficult to accelerate). Is it a sensor?
Symptoms:
- Check engine light: misfire on all cylinders, and "lean fuel trim at part throttle".
Started with changing leads and plugs without improvement. Then I found the tank ventilation seemed to be clogged, as there was a massive vacuum when opening the filler cap. Checked the canister and replaced a couple of corroded lines. Also used compressed air to blow through the canister and lines up to the Evap-purge valve. Seemed to be OK afterwards (no vacuum), but still misfires.
Changed the Mass Air flow sensor, and it seems the misfires got better, but instead I have some other issues:
- Hard to start when cold. Starts up fine for a second then sounds like it's getting to much fuel and dies. Possible to keep it running if pumping the pedal or holding it at higher revs.
- Rough idle when warm. (Same as before I changed the MAF and plugs/ leads.)
- Drives and runs ok when out on the road.
- Pulled the cable to the Idle Control Valve without any change in idle...?
- Got flashing engine light and "misfire cylinder 4" when giving full throttle on low revs and seond gear up a steep climb.
What could cause this?
- Temperature sensor?
- O2-sensor?
- Idle control valve?
- Coilpack?
I've recently purchased an 01 accent GS and I've replaced the timing belt, water pump, and spark plugs. Ive also got no cold air, and original struts with 119k on the vehicle. Those are the least of my worries now as my car loves quitting out at idle; and it does not get any better hot or cold. One of the plugs was completely black when it was taken out (not by me: mechanic work) so that's when they mentioned a cylinder misfire. they wanted an additional 100 to figure out what that could be attributed to on top of the 550 for the work mentioned above! I am now next to broke and want to see if I can trouble shoot some of the causes myself. I am thinking Plug wires, crankshaft/camshaft position sensors (if there are 2 dif ones?) MAF sensor, o2 sensor, injectors, and fuel filter. My understanding is that the coil pack controls 2 cylinders at a time and I just have 1 bad cylinder...I need to figure out where to start as I have no codes to work off of. also, I don't know how to assess resistance with an ohm meter.
View 12 RepliesI have a 00 Accent with 132k miles, I replaced the motor a year ago with a correct 2000 Hyundai 1.5 with 50k miles. I replaced everything that I could at the time, timing belt , starter, water pump, and clutch. It has been running fantastic getting 40 miles per gallon with zero problems , However in the last week I have noticed a rough idle that seems to miss with a vibration that it didn't have before. I have a noticeable loss of power and torque. My miles per gallon has also dropped to about 25 mpg. My check engine light is not on. I will check the plugs and change the air filter today but I would like to know what else could be causing the problem as I am not really sure what to check.
View 9 RepliesRecently bought a 2001 Accent that has been experiencing a 'rough idle' for the last few weeks. Basically, after I've driven the car for a few minutes (from a cold engine position) and then stop at a stop light or stop sign, I can hear the engine get louder and the car starts to vibrate slightly, after I've driven for about 15 minutes at higher speeds and then stop again I can actually see the steering wheel shaking when I take my hands off of it. If i put the car in park when I am stopped and the engine is on, the idle calms down quite a bit. The weird part is that when I first start driving the car in the morning, the rough idle problem doesn't happen until about 5 minutes of steady driving - so when the engine is colder I don't experience the problem, The problem is not that serious, and Ive already brought it into a dealer who cleaned out fuel injection, gave me a major tune up and replaced all the spark plugs, but the problem still persists. I am gonna bring it back to them but they seem a bit lost to be honest. Other than this the car is driving normally when I am not idling.
View 14 Repliesi recently changed my engine oil and filter from carquest brand to quaker state and about 500 miles later, i started having some issues like, rough idle and loud ticking and bottom engine noise. is that just a coincidence or any problems with this oil? 1.6L D.O.H.C.
View 2 Replies2004 Accent 1.6L
Changed the timing belt and water pump this past weekend. I made sure the timing marks aligned before I put the belts on. They were still aligned after turning the engine by hand and still aligned after taking the car out for a test drive. I did not notice rough idle when I started the engine in the garage nor did I notice a rough idle during the test drive.
A few days later I am now noticing the car will idle roughly when I come to a stop. The idle will get rough enough to gently shake the car. No engine light and no unusual noise from the engine.
I am going to check the timing marks again tonight. I suspect the belt may actually be off by one tooth. I have driven over 100 miles since changing the belt so I don't believe it is off anymore than one tooth or else I presume I'd probably have already broken down or been hearing unusual noises.
Furthermore, I do not seem to have any loss in power. I still have good acceleration and no roughness unless at idle engine speed. I do, however, run rough at higher speeds (75+ mph) on the highway, but this was present before the timing belt change. Unfortunately the car does not have an RPM gauge.
Having said all of this, are there any other possible reasons why I might be idling rough now?
Every morning when I start my LX570 it starts with the idle higher that normal and then after 1 or two minutes is settles.
Along with the higher idle there is a little extra noise from the engine, after 2 minutes the noise goes away and all normal.
Is this the way they start in the morning?
Since my V6s very rough ride only occurred on cold mornings (fixed with a new driveshaft early this year), I wonder if some of the newer owners will be complaining of this problem soon, now that we're embarking on fall.
The symptom was strange. On cold mornings, between 30 and 50, the Touareg would feel as though it was riding on extremely rough pavement.... over 50 it was fine, and then, after about ten minutes of driving, it went away at all speeds.
Recently I've noticed more that when we first start the hyundai in the morning or after sitting a while and we use the brakes it grinds/ squeals a little and then doesn't after about 2 or 3 miles. Is this something to get checked out or should I spray something on my brakes to lubricate?
My next step that I though of was to get a simple automatic car wash cause it's been a bad winter in Rhode Island and the street shave been flooded with rock salt. I figure that might cause some friction under the pads.
Pretty soon this thing's gonna have ALL new parts and STILL running rough! The Jeep has about 40K on a Jasper motor, 175K on everything else. I was experiencing starting issues (crank for 20-30 seconds), and noticed a P0171 code on my odometer (O2 sensor?) so off to my mechanic. He replaced two O2 sensors, no change. New code read MAP sensor, replaced, no change.
Finally, changed Fuel Pump in tank (Fuel filter was changed 2 months ago), still no change. I tried starting it tonight by turning the key 5-10 sec. to prime gas, started but still rough at idle. Runs strong above idle 1500-2000RPM. Mechanic can't check fuel pressure at rails? for some reason. My next thoughts were spark plugs and vacuum lines...
My accent 2000 is having problems. It will turn over and run for about ten seconds then will sputter out and die. I replaced the fuel filter and checked the fuel pump, all that is working well. (by the way, crazy you have to rip out the back seat to get to both the filter and pump) The battery is brand new, the alternator has been tested, i also just took the plugs out and cleaned them and re-gapped them. checked the wires to make sure they are sparking (plugs and wires are less then a yr old) I am not sure where to go from there.......
View 3 RepliesI'm having this cold start issue with my 2001 SF, but it doesn't seem to be fuel related like as the car starts fine but after about literally 1-2seconds the RPMs drop below 1k and the car will stall if I don't put my foot on the accelerator and keep it around 1000-2000 RPMs. But if I happen to make the revs go too high and let them drop again it seems like it wants to stall even easier. After about 30 seconds it smoothens out and drives almost perfectly except for a slight lack of power than normal going uphill (A.T drops to 2nd gear, sometimes 1st depending on the incline). We have had the coolant temp sensor and the fuel pressure sensor replaced. Could it be the MAF? We did clean it one time but it didn't seem to work much at all. Recently out of curiosity, I disconnected the MAF sensor and started the car it being started for a few days. No issue with idling whatsoever!.. ??
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