PO304 code

Tiny
TREVER NELSON
  • MEMBER
  • 2006 CHEVROLET CAPRICE
  • 2.8L
  • 4 CYL
  • RWD
  • MANUAL
  • 147,176 MILES
I have replaced all spark plugs and coils checked the wiring and everything runs smooth but the code still appears.
Friday, June 16th, 2017 AT 7:28 PM

5 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
That is a misfire cylinder number four check injector is okay, check compression and check for a vacuum leak at that cylinder, start here.
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Saturday, June 17th, 2017 AT 3:20 AM
Tiny
TREVER NELSON
  • MEMBER
  • 3 POSTS
Where do the injectors sit?
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Saturday, June 17th, 2017 AT 9:03 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,861 POSTS
I can get you a diagram but can you check the year and model please? I don't show a 2006 Caprice.

Cheers, Ken
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+1
Monday, June 19th, 2017 AT 11:28 AM
Tiny
TREVER NELSON
  • MEMBER
  • 3 POSTS
2006 chevy colorado rear wheel drive 2.8 liter 4 cylinder
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Monday, June 19th, 2017 AT 1:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,861 POSTS
Please start a new question

https://www.2carpros.com/questions/new

Cheers, Ken
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Wednesday, June 21st, 2017 AT 5:26 PM

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