I have a 1994 Pontiac Firebird Trans Am. i went to change the thermostat today and i noticed that there was black coolant coming out of the hose that goes from the thermostat housing. i just have the coolant flushed 2 months ago. can anyone tell me why this would be? also are the 1994 trans ams supposed to use the green coolant or dexcool? it was manufactured in 05/1994
Jun 17, 2011 at 7:33 AM