Error code p0300 multiple cylinder misfire

1997 FORD THUNDERBIRD
98,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
Avatar
CODY LEE
  • MEMBER
  • 3 POSTS
What could be what could be the cause of the random multiple cylinder misfire?
Aug 31, 2019 at 3:21 PM
Advertisement
Avatar
SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

This could be a problem with a vacuum leak on your vehicle's intake manifold. Here is a link below for how to find a vacuum leak:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please go through this guide and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
Aug 31, 2019 at 7:31 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.