- Feb 20, 2017
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I have a 03 Mustang GT. I've noticed power loss and hesitation over the past months and changed fuel filter to try to solve it, didn't help. Went to change the spark plugs yesterday and #5 was completely filled with oil. Barley the tip of the plug was visible.
Went and bought headgaskets and new bolts to fix it and noticed that antifreeze was leaking from the thermostat. So I have oil in spark plug holes and green coolant on top of the engine.
Would a head gasket change, new thermostat & new spark plugs fix these problems? The more I read the more things I think it could be. Could it also be the valve seals or valve cover gasket? Any help is appreciated!
Went and bought headgaskets and new bolts to fix it and noticed that antifreeze was leaking from the thermostat. So I have oil in spark plug holes and green coolant on top of the engine.
Would a head gasket change, new thermostat & new spark plugs fix these problems? The more I read the more things I think it could be. Could it also be the valve seals or valve cover gasket? Any help is appreciated!