Question about Hyundai Motor 2003 Elantra

1 Answer

Why are my rpms droping in steps??

When coming to a stop and putting the car in park, sometimes the rpms raise to about 2,000 rpm once the car is put in park. the rpms stay there for a bit before "stepping" down to about 1,300 rpm. they then stay there for a bit and then finally back to idle. this also occours when quickly stepping on the accelerator and then quickly letting off the accellerator. the rpms dont drop right away, almost like a delay. any ideas??

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 344 Answers

They wiill do that when it is cold out, That is normal for any vehicle,

Posted on Nov 29, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: Hyundai Veracruz 2007 Sudden engine

OK, folks, here's the scoop. The dealer took our Veracruz in for diagnostic testing and determined the cause of the problem was the actuator for the Electronic Transmission Control system (ETC).

Apparently, in later model cars like the Veracruz, a computer controls the transmission as well as the engine for optimum performance.

If the computer detects a severe enough fault in one of the components of the ETC (e.g. bad sensor, bad component, etc), it places the vehicle in limp home mode.

Based on my experiences, when in limp home mode, the transmission is forced to stay in 3rd gear, the engine will not exceed 2000RPM, the accelerator is not responsive past 2000RPM, and the engine runs rough (probably because the mixture is changed to very rich). The philosophy here, as was explained to me by somebody who works for Hyundai, is to allow the vehicle to continue operating long enough so that it can be driven to a safe location or for service.

I asked whether or not this limp home "feature" could be disabled at the dealership, but apparently it cannot.

I have alerted some folks at Hyundai Motor USA to this thread so they can do further research if the problem begins to affect more individuals than just us three.

FYI - I am in no way shape or form a mechanic or mechanically-minded, so if I have explained anything correctly, I will gladly accept further corrections/explanations from an expert or mechanic. :)

Posted on Aug 25, 2008

jmassengill
  • 345 Answers

SOURCE: engine stalls when brakes applied

Sounds like you have a vacuum leak. Do you also hear any other noises when you push the brakes?

Posted on Nov 26, 2008

  • 1 Answer

SOURCE: Engine revs up to 3000-4000 rpm all by itself

THERE IS A TEMPERATURE SENSOR ON MOTOR WHICH CAUSES THIS PROBLEM... USUALLY IT SHOWS A NEGATIVE TEMP READING WHICH CONFUSES THE COMPUTER CAUSING IT TO REV UP....HAVE THE ENGINE DIAGNOSED ON A SCANNER....GOOD LUCK...

Posted on May 25, 2009

ghost4548
  • 776 Answers

SOURCE: Santa fe studdering and won't accelerate right? RPM's jump and then steady with continuing studdering?

Engine performance problem causes are many. Try this first.
1. Disconnect the battery cables (both of them)
2. Touch/connect the postive and negative battery cables together for 30 seconds.
3. Reconnect the cables to the battery.
4. Drive vehicle to see if this solved the problem. Let me know what happens.

Posted on May 31, 2009

SQUIRESXX
  • 486 Answers

SOURCE: Hyundai i30 Diesel automatic won't accelerate above idle at light

DOES THE ENGINE MIL WARNING LIGHT COME ON? WITH OUT MORE INFO YOU NEED TO CHECK MOTOR ON A CODE READER FOR STORED FAULTS, CHECK ALL AIR LINES TO EMMISION CONTROL, , SOUNDS LIKE YOU HAVE GONE INTO SAFE MODE, A SPLIT OR LEAKING PIPE ON THE INTERCOOLER IS A COMON FAULT ON THESE, IF YOU SWITCH ENGINE OF AND BACK ON QUICKLY WITH MOTOR RUNNING WITH OUT STALLING MOTOR AND IT CLEARS THEN IT IS PROBERLY THE SAFE MODE CUTING IN MEANING A FAULT HAS BEEN SEEN BY PCM

Posted on Dec 07, 2009

Testimonial: "Thanks.Didn't notice any engine lights came on. I had a problem free day today, but if it happens again will check warnings and PCM computer check"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How to check my voltage regulator in 1989 Honda Civic


put a multimeter across the battery terminals and start the car
at idle it should read 12 volts and when at 2000 rpms it should read 14.5 to 14.8 volts at higher rpms it should still read those volts
if it goes higher then it is suspect
make sure the multimeter is set on dc volts setting

Jul 01, 2015 | Honda Cars & Trucks

1 Answer

Reving at 3000 rpms when in park


Check your idle control valve.

Jan 24, 2014 | 2002 Ford Explorer

2 Answers

Jeep 360 rattle sound at idle in park


it could be a wrist pin, and im not sure if those amc's had hydraulic lifters but sometimes with old lifters when the oil pressure is lower at an idle the lifters arnt filling up all the way so they develope a little valve lash, and when the rpms are raised the oil pressure raises and fills the lifters. you could try chasing the noise down with an automotive stethoscope.

Mar 23, 2012 | 1985 Jeep Grand Wagoneer

1 Answer

Start car and the idle goes to 3000 rpm, holds there for around 12 seconds or so and then comes down to around 1200. when driving if stopped and you put the car in park or nuetral the idle will go up to...


it sounds like a vacuum leak to me, my car had the same problem but when i changed the hose that connected the valve cover to the fuel injectors the rpms dropped back down to about 800 rpms

Sep 17, 2010 | 1999 Saturn SL

1 Answer

2003 Chevy Cavalier 2.2L - RPMs Surge & Drop Out - Stalls In Idle


it sounds like its drawing air into the inlet mannifold

Apr 16, 2010 | 2003 Chevrolet Cavalier

1 Answer

1994 toyota camry is having problems


try to replace the fuel pump

Mar 13, 2010 | 1994 Toyota Camry

2 Answers

RPM's will not stay at a steady pace


have you thought about the idle air control (iac) or T.p.s sensor try unpluging the Iac see what happens. Just a thought also listen for a vacum leak

Jun 27, 2009 | 1996 Mazda Protege

1 Answer

High iddle in 95 escort while in drive high rpm when put into park


recheck the timming marks on the timming belt sometimes when the release the belt tenisioner it go's off in cam timming this changes the vacume on the low end and this could be your problem.
A Smog station can somtimes locate if youre dealing with fuel or timming. But I think this is what it is. C69

Oct 22, 2008 | 1995 Ford Escort

Not finding what you are looking for?
Hyundai Motor 2003 Elantra Logo

Related Topics:

188 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8516 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...