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Burning anti-freeze & flooding sparkplugs HELP!

  #2  
Old 05-15-2009, 07:59 AM
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I think when the car's not moving (like revving in neutral) the ECU has a lower rev-limiter, so that last thing might be correct.

If the sparkplugs are clean & shiny (like steam-cleaned??) that would indicate a headgasket. Usually the cylinder pressure leaks out the other direction, making the anti-freeze bubble & overflow.

I've never seen a CEL code for cyl 2 & 3 "FAULTY". What's the actual code number? I'm guessing misfiring?
 
  #3  
Old 05-15-2009, 09:45 AM
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Can you see oil residue in the overflow tank on the left, and/or does the oil look foamy/whittish - look on the filler cap? Is your oil level higher? If not then your headgasket is fine.
When you dry the plugs do they smell like gas?.
 
  #5  
Old 05-17-2009, 01:56 PM
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That certainly sounds like a blown head gasket to me. My '97 Hyundai Accent Gt did that exact same thing with the overflow when the head gasket was blown. Have you ever had your car's thermostat changed? How about the water pump? Both those can cause overheating too. You can check your oil level by pulling out the dipstick with the engine off and the car parked on a level place, and seeing what the oil level is on the dipstick, it's marked so you can tell. If the oil looks like anything but normal oil, like was described above, you would be getting coolant into your oil. Needless to say, it may be time to have a good mechanic check your car out.
 
  #6  
Old 05-18-2009, 05:51 PM
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Next is a compression test, that will tell if the headgasket is gone. It will read normal compression probably on cyl's 1 and 4, and low on 2 and 3.

Frequent overheating can lead to headgasket damage, so I'd also check the thermostat like it was suggested. I would not use the car in this condition, or fix it quick if it's the only ride, since overheating can cause head warping, block damage, etc - not trying to scare you.
 
  #8  
Old 05-19-2009, 08:00 AM
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Another sign of a bad headgasket.

Combustion gas leaks out from the cylinder, into the water-jacket of the block/head. That raises pressure in the radiator, & it bubbles out from the overflow reservoir. It can bring some oil with it too, especially if the headgasket also leaks from the pressurized oil passageways into the water jacket.
 
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