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Firing order

Tiny
BEN LEONARD
  • MEMBER
  • 2005 ISUZU ASCENDER
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
I have a 5.3 v8 with coil packs that says I get a misfire on cylinder 4.
Thursday, November 12th, 2020 AT 9:22 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

I attached the firing order for you below.

Let me know if you have any other questions.

Roy
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Thursday, November 12th, 2020 AT 9:51 AM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Attached is the firing order. However, if you have a misfire on cylinder 4 only, have you swapped plugs, injectors, and performed a compression check? If you swap them with another cylinder it should move if it is the plug or injector. Clearly do one at a time so you know which it is.

Then we need to check compression and make sure that is okay.

https://www.2carpros.com/articles/how-to-test-engine-compression

Let me know what you find or if you have other questions. Thanks
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Thursday, November 12th, 2020 AT 10:01 AM

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