engine rpm surging highand low at idle and driving speed.

Asked by Dec 24, 2014 at 05:22 AM about the 2000 Hyundai Elantra GLS

Question type: Maintenance & Repair

Engine rpm surges at idle and at highway speeds. Engine goes high and low, up and
down. Can you help.

1 Answer

10,635

Is the check engine light on to indicate there are any codes? Possibilities could be a bad sensor or vacuum leak somewhere.. Taking a guess. It's difficult to diagnose an engine problem without any diagnostics or data.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Engine stalls / hesitations at idle and low acceleration 66 answers

    Model: 1999 Hyundai Elantra GLS 2.0l DOHC Odometer: 78,000 Recent work: replaced MAF with new, cleaned ignition plate, ran through 1 tank with Techron fuel system cleaner. The problem has a few vari...

    1999 Hyundai Elantra 4 Dr GLS Wagon

    -

    Maintenance & Repair

  • What is the reason for engine retreat while driving? 1 answer

    I drive Hyundai avante automatic gear with lean burn system on the engine. while driving on steady speed, things are ok. But if I slow down a bit and try to accelerate again, it takes long time and RP...

    1999 Hyundai Elantra

    -

    Maintenance & Repair

  • RPM 4 answers

    Every time I accelerate my RPM goes crazy.

    2013 Hyundai Elantra

    -

    Maintenance & Repair

  • Engine light refuses o go out 34 answers

    The engine light went on and was triggered by a 'faulty' oxygen sensor. The upstream sensor was replaced, twice with a generic sensor, then with a hyundai sensor, the downstream sensor was also repl...

    2002 Hyundai Elantra GT

    -

    Maintenance & Repair

  • Highway RPM's 2 answers

    Hey guys! I do A LOT of highway driving in speeds excess of 80mph for many hours at a time. At 80mph, my car's RMPs sit at 2500 (6speed AT, 6.75K redline) It finally hits 3K RPM at about 95 mph. T...

    2011 Hyundai Elantra GLS

    -

    General

Search Hyundai Elantra Questions

Hyundai Elantra Experts

#1 pittgirl
pittgirl
Reputation 1,980
#2 Carrie Shelton
Carrie Shelton
Reputation 1,370
#3 tenspeed
tenspeed
Reputation 1,010
View All

Related Models For Sale

Used Hyundai Sonata
605 Great Deals out of 51,051 listings starting at $1,300
Used Honda Civic
668 Great Deals out of 77,418 listings starting at $1,000
Used Toyota Corolla
874 Great Deals out of 74,435 listings starting at $1,500
Used Honda Accord
812 Great Deals out of 81,611 listings starting at $899
Used Toyota Camry
1,096 Great Deals out of 96,274 listings starting at $1,250
Used Hyundai Accent
185 Great Deals out of 12,562 listings starting at $150
Used Nissan Altima
1,079 Great Deals out of 82,567 listings starting at $670
Used Kia Optima
517 Great Deals out of 31,016 listings starting at $2,000
Used Ford Focus
696 Great Deals out of 58,725 listings starting at $995
Used Nissan Sentra
601 Great Deals out of 52,963 listings starting at $1,799

Used Cars For Sale

2014 Hyundai Elantra GLS For Sale
16 listings starting at $10,900
2013 Hyundai Elantra GLS For Sale
118 Great Deals out of 3,087 listings starting at $4,999