How do I get an air bubble out of the cooling system on a 1993 ford thunderbird........ 3.8L not s/c

1993 FORD THUNDERBIRD
97,000 MILES
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ROADRACER101
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Temp gage goes up and down and the heater fluctuates between hot an cold all of the reading i have done says air in system
Nov 16, 2011 at 8:28 PM
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ASEMASTER6371
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did you change the thermostat??
is the coolant level correct??
did it overheat prior to this happening??

Roy
Nov 16, 2011 at 8:31 PM
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ROADRACER101
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Yes new thermostat coolant level is good dont know if it has over heated just bought the car presure test done held at 15psi.
Nov 16, 2011 at 9:48 PM
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ASEMASTER6371
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you need a leak down test to start to verify the head gaskets are good.
the radiator needs to be checked for being clogged.

Roy
Nov 16, 2011 at 9:51 PM
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