Jerking sometimes?

2004 HYUNDAI SANTA FE
175,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
Avatar
DANGELL
  • MEMBER
  • 28 POSTS
Starts drives but will start idle high jerking then check engine light comes on then jerks and stops and light goes off. When on freeway 60 MPH it idles 5,000 RPMs and doesn't seem to shift. Transmission fluid is dirty. Other than that, it's fine.
May 6, 2023 at 7:53 PM
Advertisement
Avatar
STRAILER
  • Experienced Mechanic
  • 55,249 POSTS
This sounds like an engine misfire which can be intermittent. I would start by doing a tune up which this guide can help with including ignition coils:

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

This guide can help as well:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

To confirm the misfire the PCM has stored the code for retrieval.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

NGK .................... PFR5N-11
CHAMPION .................... RC10YCPB4
Gap .................... 1.0 - 1.1 mm (0.039 - 0.043 in)

Here are the instructions for your car in the images below. Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

May 7, 2023 at 6:40 AM
Avatar
DANGELL
  • MEMBER
  • 28 POSTS
Will that also have anything to do with the reason it will not shift from third to Fourth? I went to AutoZone, and it said the code that showed up after trying it several times was the replace wheel speed sensors.
May 7, 2023 at 6:55 AM
Avatar
STRAILER
  • Experienced Mechanic
  • 55,249 POSTS
Yep, the engine misfire will affect the transmission shifting. Please upload pictures or videos of the problem so we can see what's going on. Was the code for a misfire?
May 8, 2023 at 6:21 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.