What could be wrong with my car?

Asked by Monique Nov 05, 2015 at 02:02 PM about the 2004 Hyundai Elantra

Question type: Maintenance & Repair

I have a check engine light on, it keep saying it's the catalytic converter. We replaced that twice, it did say it was the 02 sensor replaced that twice. My car when it warms up or has been driven awhile feels like it is going to stall when stopped at a light. The rpm will also go from 1-3 and then below 1. We also replaced the brain, they thought it was that, there are no vacuum leaks had that checked out. I do not know what else to do.

2 Answers

25,685

The only thing left is the Muffler is clogged ... Take it to Midas before you spend a fortune on it .....2 Catalytic Converters ??????

2,345

car has 2 02 oxygen sensor upper and lower and check flex pipe

Your Answer:

Elantra

Looking for a Used Elantra in your area?

CarGurus has 4,181 nationwide Elantra listings starting at $1,200.

Postal Code:

Hyundai Elantra Experts

  • #1
    G. Jacob Durbin
    Reputation
    2,750
  • #2
    pittgirl
    Reputation
    2,510
  • #3
    Pirdman
    Reputation
    2,300
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Hyundai Sonata
33 Great Deals out of 1,260 listings starting at $1,995
Used Honda Civic
141 Great Deals out of 7,849 listings starting at $490
Used Toyota Corolla
166 Great Deals out of 5,598 listings starting at $1,500
Used Toyota Camry
47 Great Deals out of 1,938 listings starting at $2,295
Used Honda Accord
63 Great Deals out of 1,607 listings starting at $100
Used Hyundai Accent
50 Great Deals out of 1,204 listings starting at $1,495
Used Mazda MAZDA3
74 Great Deals out of 3,106 listings starting at $1,895
Used Nissan Altima
40 Great Deals out of 1,189 listings starting at $2,000
Used Kia Optima
18 Great Deals out of 565 listings starting at $5,444
Used Nissan Sentra
81 Great Deals out of 2,393 listings starting at $2,450
Used Ford Focus
54 Great Deals out of 1,667 listings starting at $1,980

Used Cars for Sale

2021 Hyundai Elantra For Sale
585 listings starting at $19,799
2020 Hyundai Elantra For Sale
19 Great Deals out of 835 listings starting at $15,475
2019 Hyundai Elantra For Sale
26 Great Deals out of 382 listings starting at $12,698
2018 Hyundai Elantra For Sale
24 Great Deals out of 398 listings starting at $8,988
2017 Hyundai Elantra For Sale
27 Great Deals out of 729 listings starting at $7,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.