Coil pack replacement

2007 CHEVROLET TRAILBLAZER
197,000 MILES • 4.2L • 6 CYL • 4WD
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JOSHUA ALAN BOYER
  • MEMBER
  • 1 POST
Got code for cylinder five misfire, so replaced plug didn't help. move on to what I have always called a coil pack. But that's not what it comes up on as being called on any parts website. The part my local parts store gave me is exactly or similar to ones I c online bit not same as one I pulled out. My question is, the mounting base plate different on aftermarket replacement. It is smaller in size will this affect operation of it.
Mar 14, 2022 at 10:11 AM
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BORIS K
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 836 POSTS
Hello,

The replacement coil will need to be of the same dimensions as the old unit being replaced.

See link to video:
https://youtu.be/pdbccCpOhWM

The coil has a water seal and locating bolt which need to fit properly.
See images below.

Please let us know how you get along.

Cheers, Boris
Mar 14, 2022 at 10:25 AM
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