Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Why is my SUV still misfiring? 2002 GMC envoy?

I change the plug and the ignition coil and its still missing what else could it be I had it put on a code scanner before and after it gave me a trouble code of p0305 engine misfire cylinder 5 so I changed the plug and coil for Cyl 5 still getting the same trouble code wonder what could it be any Ideas don't want to take to the shop for something I can do at home any suggestions will be greatly appreciated

2 Answers

Relevance
  • Anonymous
    8 years ago
    Favorite Answer

    You probably have a vacuum leak on the intake runner to number 5 or you have a bad injector.

  • Anonymous
    8 years ago

    Have you checked the flux capacitor, you gota get it up to 88 MPH and you should be good.

Still have questions? Get your answers by asking now.