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Please help!!!!! If anyone can.

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Old 11-17-2017, 01:34 PM
  #11  
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Could be a failing catalytic converter, also

https://www.obd-codes.com/p0304
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Old 11-17-2017, 05:02 PM
  #12  
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Getting rid of it 150 in all 3 and 120 in #4
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Old 11-17-2017, 05:17 PM
  #13  
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Head gasket. a shop could fix for 6 hours labor + $50 for the gasket.
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Old 11-17-2017, 07:10 PM
  #14  
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It could be a stuck or carboned ring, run Seafoam thru it, can’t hurt.
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Old 11-17-2017, 07:22 PM
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It could be a few things. The previously mentioned leak down test would determine whether it is rings/piston, gasket, or valves.
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Old 11-18-2017, 12:25 PM
  #16  
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Originally Posted by harly14
Getting rid of it 150 in all 3 and 120 in #4
Did you try putting oil in number 4? If it hasn't been firing the rings might be washed down by the unburned fuel.
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