Error code p0300 multiple cylinder misfire

1997 FORD THUNDERBIRD
98,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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CODY LEE
  • MEMBER
  • 3 POSTS
What could be what could be the cause of the random multiple cylinder misfire?
Aug 31, 2019 at 10:21 PM
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SCGRANTURISMO
  • ✓ASE Certified Mechanic
  • 4,897 POSTS
  • ASE Certified Mechanic
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
Sep 1, 2019 at 2:31 AM
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