coil pack keeps overheating what's the problem?

2005 HYUNDAI SONATA
105,000 MILES
Avatar
FILLERS
  • MEMBER
  • 6 POSTS
changed engine in my 2005 hyundia sonata 2.0L car started for 2 hours then the following day went to start it no start engine cranks no spark and fuel pump not cutting in please help me?
Feb 24, 2012 at 4:36 PM
Advertisement
Avatar
SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

The coil pack is likely overheating for having excessive internal resistance.
It can also be triggered by spark plugs.
Since you are not getting any spark it could be due to faulty coil or bad spark plugs.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Here is the ideal resistance for the coil:
Primary resistance : 0.78 ± 10% (Ohms)
Secondary resistance : 20 ± 15% (k Ohms)

https://www.2carpros.com/articles/how-to-use-a-voltmeter

As for the fuel pump, if the pump is inoperative. It could be due to a bad pump, relay or wiring.

Please let me know of any questions.
Thank you.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Sep 15, 2021 at 3:54 PM
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.