Engine would stumble at low rpms then stop?

2019 HYUNDAI SONATA
80,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
THEBADBRAD
engine would stumble at low rpms then stop. diagnosed with failing high pressure fuel pump by Hyundai technicians. replaced part. problem persists but much less frequently. restarts immediatly after quitting and performs admirably until the next episode
Sep 23, 2025 at 11:48 AM
Advertisement
Avatar
STRAILER
  • ASE Certified Mechanic
  • 54,494 POSTS
  • ASE Certified Mechanic
I have seen the fuel pressure senso go out on these cars and cause this problem, lets do a scan to see if any codes can help us confirm the issue. This video will help

https://youtu.be/u-4syLc-ifQ

Please go over this guide and get back to us.
Sep 25, 2025 at 10:19 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.