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p0304 and p0305

  #1  
Old 3 Weeks Ago
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p0304 and p0305

have a 00 ford ranger with the 3.0 flex fuel. have both codes p0304 and p0305. have changed plugs, wires, coil, fuel filter, IAC, 2 fuel injectors on misfire cylinders, new MAF sensor. I'm stuck on what to do next. it idles rough and has a noticeable lack of power especially on the freeway. truck has 175,000 mi. I tried spraying carb cleaner around vaccum lines with nothing. please help any advice is really appreciated
 
  #2  
Old 3 Weeks Ago
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With adjacent cylinders having a misfire, and with you replacing all the parts you did,

It's time to do a compression test, I'm thinking you have a bad head gasket.
 
  #3  
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shoot.... I sure hope it's not the head. anything else it could be??
 
  #4  
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Ditto compression check suggestion. 4 & 5 being adjacent, my call is the head gasket blew out between the cylinders.
 
  #5  
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anything else 8t could 've besides head gasket?
 
  #6  
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Originally Posted by johnnyboy89 View Post
anything else 8t could 've besides head gasket?
A cracked head.
 
  #7  
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damn... sure hope not. those are the only things it could be?? with a blown head gasket or cracked head would my truck overheat?
 
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