what would most likely cause (intermittent,not all the time) fast idle at stop light..thks

Asked by Dec 09, 2014 at 07:33 PM about the 2004 Hyundai Elantra GT

Question type: Maintenance & Repair

used car bought from car dealer near St.Louis,Mo.the car has 120K miles on it.don't know if previous owner followed maintenance schedule.

1 Answer

Vacuum leak is most common cause of high idle, if your IAC (Idle Air Control) valve is clean and working. You won't notice at speed because of the high flow of air in to intake. If your CEL is on an OBDII scan is called for here

2 of 2 people found this helpful.

Your Answer

Hyundai Elantra Experts

  • #1
    pittgirl
    Reputation
    2,020
  • #2
    Carrie Shelton
    Reputation
    1,390
  • #3
    Pirdman
    Reputation
    1,170
View All

Related Models For Sale

Used Hyundai Sonata
786 Great Deals out of 54,594 listings starting at $1,500
Used Honda Civic
695 Great Deals out of 64,158 listings starting at $999
Used Toyota Corolla
871 Great Deals out of 59,960 listings starting at $850
Used Toyota Camry
937 Great Deals out of 90,042 listings starting at $300
Used Honda Accord
1,085 Great Deals out of 65,757 listings starting at $561
Used Hyundai Accent
226 Great Deals out of 12,624 listings starting at $1,995
Used Nissan Altima
1,077 Great Deals out of 78,379 listings starting at $1,500
Used Kia Optima
446 Great Deals out of 32,454 listings starting at $2,450
Used Mazda MAZDA3
369 Great Deals out of 26,608 listings starting at $899
Used Ford Focus
729 Great Deals out of 57,442 listings starting at $1,150
Used Nissan Sentra
701 Great Deals out of 51,631 listings starting at $600

Used Cars For Sale

2018 Hyundai Elantra For Sale
28,242 listings starting at $10,699
2017 Hyundai Elantra For Sale
133 Great Deals out of 8,727 listings starting at $8,888
2016 Hyundai Elantra For Sale
85 Great Deals out of 2,698 listings starting at $7,877
2015 Hyundai Elantra For Sale
111 Great Deals out of 2,659 listings starting at $7,608
2014 Hyundai Elantra For Sale
85 Great Deals out of 1,900 listings starting at $6,295

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.