HOME
ASK A QUESTION
REPAIR GUIDES
BECOME A MEMBER
LOG IN
Login with Facebook
OR
Remember me
NOT A MEMBER?
FORGOT PASSWORD?
CONTACT US
PRIVACY POLICY
TERMS AND CONDITIONS
☰
Home
Chevrolet
Caprice
Trouble Codes
P Codes (Powertrain)
P0300 - P0399
P0304
SPONSORED LINKS
PO304 code
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
MHPAUTOS
MECHANIC
31,937 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.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, June 17th, 2017 AT 3:20 AM
TREVER NELSON
MEMBER
3 POSTS
Where do the injectors sit?
Was this
answer
helpful?
Yes
No
Saturday, June 17th, 2017 AT 9:03 AM
KEN L
MASTER CERTIFIED MECHANIC
47,606 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
Was this
answer
helpful?
Yes
No
+1
Monday, June 19th, 2017 AT 11:28 AM
TREVER NELSON
MEMBER
3 POSTS
2006 chevy colorado rear wheel drive 2.8 liter 4 cylinder
Was this
answer
helpful?
Yes
No
Monday, June 19th, 2017 AT 1:49 PM
KEN L
MASTER CERTIFIED MECHANIC
47,606 POSTS
Please start a new question
https://www.2carpros.com/questions/new
Cheers, Ken
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, June 21st, 2017 AT 5:26 PM
Please
login
or
register
to post a reply.
Sponsored links
Ask a Car Question. It's Free!
SPONSORED LINKS
Code Read Retrieval/Clear - Dodge Stratus
Code Read Retrieval/Clear Honda
Code Read Retrieval/Clear Chevrolet
Online car repair manuals