replaced waterpump and thermostat and now car runs rough
while out running errands today my factory waterpump (orange plastic impeller) went out. car got into the red for a short amount of time. replaced the waterpump and thermostat, and all related gaskets and now the car runs like it is missing on one or more cylinders.
anyone have any ideas? i took it out for a 20 mile trip to make sure the cooling system was well bled and to see if the problem would clear up. still doing the same thing..... I'm REALLY hoping that I didnt blow my headgasket...
after the trip I checked the oil and coolant for contamination, so far so good.