Maintenance and Upkeep Discussion HHR maintenance tips ranging from oil change intervals to brake pads and everything in between.

Po301 misfire comes and goes

Old Jan 7, 2015 | 11:36 AM
  #11  
donbrew's Avatar
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From: Fredericksburg,VA
Originally Posted by jdjaa1959
i was going to move the coil to another cylinder to see if the misfire follows but
logically for the $ 50.00 i should just replace it and rule that out. injector would be next,
not sure how hard of a job that is. Thank you
If you changed the plugs you had to remove the coils. If you have a 2006 the SINGLE coil is a lot more than $50.
Old Jan 7, 2015 | 12:33 PM
  #12  
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But Don, my friend read post#6 he has an '07
Old Jan 7, 2015 | 02:23 PM
  #13  
donbrew's Avatar
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Originally Posted by Oldblue
But Don, my friend read post#6 he has an '07
Thus the "if".

Once more I am blaming the phone. It is difficult to go back while responding and my memory is not as good as I remember.
Old Jan 7, 2015 | 04:27 PM
  #14  
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Darn phones!!
Old Jan 7, 2015 | 08:09 PM
  #15  
2oodoor's Avatar
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My 07 2.4 doing the same thing, showed up about the same time colder weather did. It gets a little jerky for a second just about the same time one would expect the thermostat opening, once in a while. 301 code popped on last time it did that.
Im going to run a can of bg44k in the tank and see if that helps.
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