1990 GMC Jimmy Thermostat steaming

1990 GMC JIMMY
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KOBRA
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Engine Cooling problem
1990 GMC Jimmy V8 All Wheel Drive Automatic

My car has been overheating and i replaced the thermostat and now its overheating and steaming from the actual thermostat gasket itself. I am going to wait till it cools and redo everything to check to see if everything is correct but assuming everything is correct because i rarely mess up...what else could it be?? I didnt use any sealant could this be why its spewing steam??
Oct 5, 2010 at 5:50 PM
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RASMATAZ
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Test the thermostat though its new and also make sure its installed correctly-
Oct 5, 2010 at 5:55 PM
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KOBRA
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I fixed the thermostat by sealing it better and now its steaming from somewhere else. Could be the water pump?
Oct 5, 2010 at 9:35 PM
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