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check engine problem

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Old Jul 1, 2008 | 01:33 PM
  #1  
ficohummer's Avatar
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Joined: Jul 2008
Posts: 1
Default check engine problem

I HAVE A LIGHT ON ENGINE AND THE CODE IS P0303 MISFIRE CYLINDER 3, HOW FIX THIS PROBLEM
 
Old Jul 1, 2008 | 01:42 PM
  #2  
Doc Olds's Avatar
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Joined: Jul 2007
Posts: 13,083
From: Boat Town USA MI
Default RE: check engine problem

Let the dealer look at it.
 
Old Jul 1, 2008 | 01:55 PM
  #3  
Bitdriver's Avatar
Joined: Jun 2008
Posts: 75
From:
Default RE: check engine problem

Yeah definately a dealer issue unless you're a full blown mechanic. Try clearing the trouble code, see if it happens again. If it does, take it to the grease monkey.
 
Old Jul 2, 2008 | 11:37 PM
  #4  
h3carlos's Avatar
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Joined: Oct 2006
Posts: 135
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Default RE: check engine problem

Have you had an onstar diag?
 
Old Jul 3, 2008 | 12:03 AM
  #5  
Mr_Pat's Avatar
Joined: May 2007
Posts: 117
From:
Default RE: check engine problem

Is yours an 06 H3???? Maybe a bad head.
 
Old Jul 3, 2008 | 03:35 PM
  #6  
blaine517's Avatar
Joined: Mar 2008
Posts: 37
From:
Default RE: check engine problem

I know the early year colorados had a head issue. But was fixed by late 05 early 06. i would suggest taking it into a dealer and hae them fix it.
 
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