Backfire popping

Tiny
EARL SMITH
  • MEMBER
  • 2000 DODGE DURANGO
  • 4.7L
  • V8
  • RWD
  • AUTOMATIC
  • 186,000 MILES
I just changed my spark plugs and when I started the vehicle it started backfiring. It was not doing it before I swapped the spark plugs.
Tuesday, October 3rd, 2017 AT 4:31 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,949 POSTS
Hey Earl,

It sounds like one of two things has happened, either the firing order on the coils got mixed up or you cracked one of the plugs installing them.

Here is a guide and a diagram to help get the problem fixed:

https://www.2carpros.com/articles/how-to-change-spark-plugs

Please let us know what happens and upload pictures or videos of the problem.

Cheers, Ken
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Wednesday, October 4th, 2017 AT 3:02 PM

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