Any steam/water or dark smoke coming out of the exhaust? More than normal anyway, it's quite common for motors to make a little water from the humidity in the air. Are you slowly losing coolant or oil?
The heat could be causing the head gasket to leak if it wasn't sealed properly... My only other guess would be the plugs, fuel pump or filter and the distributer... but you already replaced those...
Hatch Nation #32
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Last edited by CotyM; 04-10-2013 at 02:17 PM.