Elantra XD (2001-06) :: Engine Is Revving Up To 3000 RPMs When In Park Or Neutral

2002 Elantra engine is revving up to 3000 rpms when in neutral or park. I changed the Throttle Position sensor and it went right back to revving up. Code read P0121. What might be causing this? Seems like I get one thing fixed and then another code shows up..

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Dodge - Ram - 1500 - Transmissions :: 2001 - Won't Shift Properly - Stuck In 2 - Sometime Still Into Neutral?

My name is Jason and I have a 2001 Dodge Ram 1500 with an automatic transmission. It has trouble shifting. I have to drop it down from D into 2 and then back into D to get it to shift out of second gear most of the time. If I have to stop ten times in a trip I have to manually shift it about seven or eight of those times. On top of that, sometimes while I'm driving it will slip into Neutral but it'll still be in the D position. This just started and has only happened a few times so far. My transmission fluid levels are fine. I'm trying to see if there is any other solution besides rebuilding or replacing my transmission.

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Lexus GX 2004-09 :: Engine Stumble Only At 1500 RPMs If In Park Or Neutral

What could cause this? I have 100k and I only notice this if in park or neutral at 1500rpms. It goes away before and after and it seems to drive very smoothly. I had a bad alternator and I just replaced it but the "new" one is making a high pitching ringing so I'm having the shop change that out for a new oem. Any chance it's the alternator or could this be something else. I have sea foamed the throttle body recently and cleaned the maf recently and changed the air filter. I didn't do plugs but they are do at 120k

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Dodge - Ram :: Surging Under Load At About 1500 RPMs

I have a 1994 dodge ram 2 wheel drive with a 318. Idles fine but when put under a load it starts surging and bucking at about 1500 rpms. Idles at 1500 no problem only under a load...

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Ford :: 1999 E350 V10 Surging Which Will Stop When Shift To Neutral

I have a '99 E350 Ford van, V10, with 300K that runs like a charm until I slow down to stop. It begins to surge which will stop when I shift to neutral. I went to the local parts store and put it on their code reader. It only read 'left bank lean'. Nothing else.

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Ford Super Duty (1999-2016) :: 2006 F350 Misfiring And Surging While Cruising At 1500 -1700 RPMs In Any Gear

I have a 06 f350 with 5.4 140k miles. Recently it has been shaking bad on idle but only in gear and it's hard to start when cold. The exhaust is moist at all times and the fluids never leak. When you floor it it hesitates feels like it's overly rich but if you let off a little it stars to pull again. Also while cruising at 1500-1700 rpms in any gear it will surge and skip. Only time it will miss and the CEL comes on is over 4000 rpms for a random misfire. Just put new coils in new fuel pump and filter. There has always been a cat code but it never effected the drivability. Could it be injectors?

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Elantra XD (2001-06) :: Hesitate To Accelerate / Shift Hard And At Higher RPMs

So my girlfriend has an 04 elantra 2.0... the car will be running fine but then after so long of driving(maybe 15, 20mins) itll start acting strange..

It will hesitate to accelerate and shift hard and at higher rpms. Then at cruising speed it will turn off instantly(no sputter, hesitation, almost as if you just turned the key off). Seconds later the engine will come back but the gauges die and the engine will remain on.

At that point i pulled over and as i was on the brakes the car died when I came to a complete stop. Once the car completely turned off it would not start back up. However jump starting it got it going. The car is not throwing any codes.

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Elantra XD (2001-06) :: Engine Surging On Highway When Driving At Constant Speed

I have an 04 Elantra GT and have been noticing a jerkiness when driving at a constant speed on the highway. I haven't noticed it around town or while accelerating. I also have noticed that when I disengage the clutch on the highway, the engine sometimes doesn't respond right away, or it even may surge. This has happened when exiting the highway when I disengage the clutch. The engine will slow, then speed up close to 3000 rpms.

I also had a check engine light come on and couple months ago. The code indicated that the upstream O2 sensor was bad. I took it out and cleaned it, but didn't replace it. Is this a likely culprit for this set of symptoms? If so, how can I test the sensor to be sure? I heard that I could disconnect it and run the car and see if the surging lessens, but wasn't sure if that was a good thing to do.

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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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Accord :: 1991 Engine Surging At Idle In Park And Neutral From 1000 Up To 2400

1991 Honda Accord DX A/T A/C. The engine is surging/searching at idle in park and in neutral from 1000 up to 2400. There are no engine fault codes.

I have cleaned the IAC, adjusted the TPS, Removed/Cleaned/Re-installed the TB, No MAP problem. I also removed the "black box" and checked the cold idle control diaphragm as best I could. I cannot find any specs on testing this. When I apply vacuum to it via the center port on the bottom it holds the vacuum, but takes approx 5 seconds for the diaphragm to "pop" to its ambient state after releasing vacuum.

I have sprayed all possible vacuum hoses along with all intake gaskets to test for vacuum leaks.

I have attached a diagram of the black smog box that is mounted on the firewall. The cold idle diaphragm is labeled as 2. I also have concerns about that electrical vacuum solenoid labeled 27.

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Santa FE SM (2001-06) :: Surging Upon Startup And High Idle RPMS - TPS Replaced

2004 Santa Fe .... 2.7 6 Cyl 4WD 150k miles

Recently I started experiencing RPMs surging upon startup and driving before my engine warms up. The problem has gotten worse to where I push on the accelerator the RPMs jump to 2700 and the transmission feels like it disengages. My initial thought was the tranny was going bad and slipping. I checked the fluid level in the T and found it was maybe a half Qt. low. I topped it off, but this had no impact on the problem. On a side note, I am able to use the manual shifting feature on the "His and Hers" Shifter and drive the vehicle without any issue. Transmission works fine in manual. The surging RPMs which only occur in Automatic mode, triggered the CEL and I got a code of P0123 which is high side voltage on the Throttle Position Sensor. I replaced the gray TPS with a new black one.

Upon startup the RPMS jumped to 3000 just sitting in Park. I disassembled and reinstalled figuring I had something bound in the throttle. After reassembly the idle went up to 2200, still no good! I reinstalled the original gray TPS and the RPMs, upon starting, RPMs were 1500 with the old sensor...still too high. I did reset the ECU twice during the process of putting in the new sensor and reinstalling the old sensor. Right now I found that when I disconnect the TPS electrical connector, the engine runs normal. It starts right up with the TPS totally disconnected and idles at 750 RPMs! It will not shift to 2nd gear though, when I try to drive it in Automatic Mode. I can however drive in Manual Mode and drive normal and shift right through the gears. Who needs automatic mode right?!!!

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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 HD (2006-10) :: 2007 - Shift Into Neutral While Coasting?

I'm wondering if it is OK to shift into neutral while coasting (engine on). I've read varying arguments back and forth on whether or not it hurts it. I've done for a while in my 99 suburban and the transmission still shifts just fine. I've tried it once in the elantra just to see how it affects my fuel economy, and it boosts it about 100mpg (coming off a freeway ramp). Braking and steering controls don't seem to be affected by the lower vacuum.

I can see why its not advised while the engine is off (i.e., towing), but if the engine is on, torque converter turning, transmission fluid pumping, I can't see where it would hurt.

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Ford Excursion :: 2001 V10 - Ticking Noise At 1500 RPMs

I have a 2001 v10 with about 157k miles on it. Recently (within last 2 months) I am getting a ticking noise that is pretty constant. It doesn't seem to increase with rpms and I can barely hear it with the hood open- I hear it much better with the hood closed. It seems to start about 2-3 seconds after I start the car (when fan clutch engages?) and seems to be coming from the front middle of the engine. I do not see any broken exhaust studs. I do also occasionally have a ticking noise at 1500 rpms (only at 1500 rpms- not sure if it's related or not). I made a short video- not sure if you can hear the noise.

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Bmw - 325 :: Occasional Surging Idle / Engine Will Rev Between 500 And 1000 RPMs

My 2001 BMW 325Ci has an occasional "surging" idle problem. When coming to a stop or at idle, the engine will rev between 500 and 1000 rpm's. Sometimes it will correct the problem and idle normally, or keeps surging until it eventually stalls. When restarted it works fine. Tried fuel injector treatment, fuel stabilizer treatment, and replaced thermostat. Still surges about 50% of the time. Had it to a dealer, and computer says its running fine.

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Elantra XD (2001-06) :: Won't Idle Down Below 1500 Rpm

02 elantra 138418 miles. Before I cleaned throttle body engine idled fine, but know I can't get engine to idle below 1500 rpm, check engine lite is on, went to advance auto parts, he pulled code, he said idle air control stuck, i am hoping there is something i can do before spending $ and replacing it.

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Elantra GD (2013+) :: RPMs Too High - Cannot Shift Into 1st Gear

Purchased my 2013 Elantra GT a few months ago and have been having a problem that had stumped everyone at the dealership. Thought I'd see who else is having it and what the thoughts are. To start, this is a 6SPD Manual Transmission.

Problem: Say you're at a stop and begin accelerating in 1st gear and then shift into neutral because you have to come to a stop again. When operating normally, the RPMs immediately wind down to idle. Well for me, about 15% of the time or more, the RPMs will take up to 10-15 seconds to wind down to idle. During this time, you cannot really shift into 1st gear because the RPM are too high.

The dealership has been working on this issue since last month. They replaced some parts and it is still doing it. They got diagnostic data and told me the throttle was sticking. No one could figure it out. Engineers got involved from regional, and it got pretty heavy as far as time. After several attempts at figuring out the problem and replacing things (which didn't resolve the issue), the engineers drove another new GT and found it was also doing it. So all of a sudden they said "it's normal" and closed the case.

Chances are, if other new ones are doing it, so is yours. I got second opinions from other auto shops who said it is not at all normal and that there may be a defect in the design. I've owned 4 Manual Transmission cars and I have never seen this before. If you're curious and have the 6spd manual version of this car, the easiest and quickest way to see this happen is accelerate in 1st gear to about 4000RPM and shift into neutral. Eventually, it'll get stuck and take a significantly longer time for the RPMs to return to idle. Usually when it finally happens, it'll keep doing it for several subsequent acceleration cycles.

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Accent MC (2006-11) :: Engine Stuttering Between 1500 And 2500 Rpms

My 2008 Accent started to stutter between 1500 and 2500 rpms. Now the check engine light has come on, and the engine is idling rough.

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Elantra GD (2013+) :: Auto Shift Noise At Higher RPMs

2013 Elantra GT ... Odd sound when shifts at higher RPMs. Like a chirp, or a tiny blow off valve from an old home turboed civic. Some sort of leak? When the engine is under load, it sounds like I may have some sort of minor exhaust leak, though that is nowhere near audible in the video. Very curious as to what this is.

[URL] ...

Listen right at 0:14 when it shifts.

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