How to replace the spark plugs?

2003 FORD EXPLORER
201,000 MILES • 4.0L • 6 CYL • AUTOMATIC
Avatar
MANUEL209
  • MEMBER
  • 1 POST
Is there a pattern to change the spark plugs?
Jun 21, 2021 at 8:04 AM
Advertisement
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
There is no pattern to changing them. Just change the all is all that matters. Here are some guides that will help with this:

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

https://www.youtube.com/watch?v=e68QXyBAiZo

Here is the process from the manual that shows how to replace them. Please run through all this material and let us know if you have questions. Thanks
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.
Jun 22, 2021 at 7:56 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.