2000 Hyundai Accent HELP! My Hyundai keeps reving up to wa

Tiny
FLYRSFNS
  • MEMBER
  • 2000 HYUNDAI ACCENT
Engine Performance problem
2000 Hyundai Accent 4 cyl Front Wheel Drive Manual 78K miles

Let me explain in 50 words or less. Back in March my car was doing the "hiccup" thing which got worse and worse and the RPMs were revving up to 4000 when it was idle (especially in the morning when first starting) & it would seem to be stuck at the high RPMs until I would tap on the gas and it would go down. At that time I had the "idle air flow valve" replaced and that sort of seemed to work. FOR A WHILE.
Now just then last week my car all of a sudden just stopped being able to shift in the middle of the road and seemed to be stuck in 4th gear. So I got a rebuilt trans. Installed & now it is shifting again but the RPM revs and the "hiccup problem" CAME RIGHT BACK THIS MORNING.
Now the car is shaking badly when idle & the RPMs are revving again but now really got stuck this morning and I had to tap the gas TWICE to get it to go down. Now it's also idiling @ 2000 RPM and while on the highway tonight the car was really running HEAVY & LOUD and the RPMs rose to 4000 while driving!
Are these problems related or unrelated do you think?
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Friday, November 14th, 2008 AT 9:58 PM

9 Replies

Tiny
JNOVACK
  • EXPERT
Check the Throttle Position Sensor and let me know what you get
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Friday, November 14th, 2008 AT 10:17 PM
Tiny
FLYRSFNS
  • MEMBER
What is a Throttle Position Sensor and what does it do? And why do you think it might be that?
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Friday, November 14th, 2008 AT 10:27 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
The TPS (throttle position sensor) offers variable resistance depending on the winding or unwinding of its actuator. When you goose the throttle, or take your foot off the gas, the TPS tells your vehicle's computer where the throttle is. Look under your hood at your fuel rail or throttle body. On one side you will see the terminus of the throttle cable and the cam around which the cable is wound. Directly on the opposite side of the throttle body from here, you will see the TPS.

This could be the cause of your issues because if it is faulty then it may be sending a wrong signal to your vehicle's computer, in return the throttle will shoot the revs up to an unwanted range.
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Friday, November 14th, 2008 AT 10:38 PM
Tiny
IMPALASS
  • EXPERT
Hello -

Well, let's do a couple of things. First is your vehicle a GL Sedan, GS hatch Back or L Hatch Back?

Next, there may be a recall for this very thing......I have attached it. Please contact the dealer to see if it applies to you. The recall does involve the Throttle Body and the problem causes high idle. No guarantees, but worth checking into. Contact the dealer, Service Department and provide them with our VIN and they will be able to tell you if it applies to you.

While checking on those, I have attached 4 Safety recalls you can check on also.

Recalls are normally paid by the dealer at no cost to the consumer.

Next, since you can not probably do this until Monday, please go to Auto Zone or O'Reilly's and for FREE they can pull the codes to the car. Most important: Once they check your codes, if they find something and you don't get it fixed and need to get back with us, please make sure you tell us exactly what the code was, number and all. Example, if the code was E0568 O2 Sensor bad. Then make sure you give us all of that. While there for FREE also they can bring their tester out and check your battery, alternator and starter.

As for the transmission - I don't think this has anything to do with each other but why did you know it was the transmission and not the clutch that needed replacing?

Okay, do the above - some will have to wait until Monday I am sure but do what you can and get back with me on the information and results.

Group:
CAMPAIGN

Number:
02-01-004

Date:
APRIL, 2002

Model:
2000-01 ACCENT

Subject:
POSITIVE CRANKCASE VENTILATION (PCV) HOSE RELOCATION AND HEATED THROTTLE BODY INSTALLATION - CAMPAIGN 047

DESCRIPTION:

This bulletin describes the steps necessary to replace and relocate the PCV hose and install a heated throttle body on certain 2000 and 2001 model year Accents.

While driving at a steady throttle opening for an extended period of time during extremely cold ambient temperatures (below approximately -5 F -20 C with high humidity), moisture in the combustion blow-by gases traveling through the PCV valve and hose may freeze, blocking the PCV hose. If the PCV hose freezes, combustion chamber blowby gases are forced to exit the valve cover and enter the air intake hose through the breather hose. Because the breather hose enters the air intake hose before the throttle body, moisture in the combustion chamber blowby gases may freeze inside the throttle body idle speed control circuit and in the throttle body bore, resulting in a higher than normal engine idle speed and the throttle valve not closing fully.

AFFECTED VEHICLES:
All 2000 model year Accents and 1.5 liter
2001 model year Accents produced through February 13, 2001 and all 1.6 liter
2001 model year Accents produced through June 5, 2001 which are registered and operated in the 23 affected cold weather states listed below.

AFFECTED STATES:

Alaska, Colorado, Iowa, Idaho, Illinois, Indiana, Kansas, Massachusetts, Maine, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Hampshire, New York, Ohio, Pennsylvania, South Dakota, Vermont, Wisconsin, and Wyoming.

AFFECTED VEHICLES and SERVICE REQUIRED:


http://www.2carpros.com/forum/automotive_pictures/248015_1_63.jpg



Safety Recalls to check on

02-01-010-1 11/01/2002 Recall - A-Pillar Reinforcement Update

NHTSA02V167000 06/01/2002 Recall 02V167000: Occupant Protection Noncomplience

NHTSA00V096001 07/06/2000 Recall 00V096001: Possible Windshield Wiper Defect

NHTSA00V096000 03/27/2000 Recall 00V096000: Windshield Wipers Inoperative
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Friday, November 14th, 2008 AT 10:44 PM
Tiny
FLYRSFNS
  • MEMBER
BlueLightning/Impala SS: Okay I will tell my mechanic that. Anything else you think it might be?

What about the car shaking so badly when I am idle? Is that a fault tranny mount to the engine? I am totally guessing here.

Impala SS: It is a GL sedan.
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Friday, November 14th, 2008 AT 10:54 PM
Tiny
FLYRSFNS
  • MEMBER
I replaced the transmission because my car suddenly one night last week in the middle traffic decided to stop going in gear. So I pulled off the road and the gear shifter was "dead" or basically I could move it in a continuous circle around and around. So my mechanic said he checked everything (cables, bolts whatever) outside of the tranny and nothing worked so it had to be inside the tranny. So I got a rebult tranny (apparently Accents have trouble with these "plates" or something inside the tranny - know problem) and while the tranny was out/down I had them put in a new clutch becasue it would be no more labor and I know the clutch was starting to go.

I fit the recall - but will they honor a recall this late in 2008 when it was created in 2002?
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Friday, November 14th, 2008 AT 11:00 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Most dealers will honor a recall for up to 10 years from the release of the vehicle. It is different for each vehicle though so only your dealer will be able to tell you if you will have to pay for labor/parts.

For the shaking, I would suggest having the motor mounts and transmission mounts both checked. The bushings could be worn out or the mount itself may not be bolted properly.
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Friday, November 14th, 2008 AT 11:06 PM
Tiny
FLYRSFNS
  • MEMBER
Thank you guys so much for the help and thanks for finding the recall! Maybe that will help with RPM problem. *Fingers crossed* For right now I will get my mechanic that did my tranny to check the bolts and stuff to hopefullly fix the shaking problem and then I will call the dealer to see if I can get the recall taken care of.

You guys have been a GREAT HELP! :)

I will keep you all posted!
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Friday, November 14th, 2008 AT 11:28 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Great, let us know the results and if you have any more issues just post and we will do our best to help.

Thanks for using 2carpros. Com
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Friday, November 14th, 2008 AT 11:30 PM

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