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(1979-1993) Fox-Body Mustang Tech

Technical discussions for Fox-Body Mustang performance and appearance for the 1979-1993 Ford Mustangs (5.0L, 4.2L, 3.8L, 3.3L, 2.8L, and 2.3L)


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  #1  
Old 11-17-2011, 08:41 AM
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Default 1990 5.0 heat problem
Alright all a buddy of mine has a 1990 foxbody with a 5.0 in it. He approached me with a problem he has been having and I don't know what it could be so I'd figure I would ask here. The motor will not get hot until about 45 minutes of driving it. Anyone know what it could be? I'm leaning towards the thermostat, but i might be wrong.

Thanks in advanced



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Old 11-17-2011, 11:41 AM
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The thermostat would be my first guess as well. If it hasn't been changed in a while it could be stuck open not letting the motor warm up right.


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Old 11-17-2011, 04:35 PM
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yeah thats what i told him, hes gonna change it this well and we will see what happens thanks.


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Old 11-17-2011, 09:03 PM
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No problem. That would be my first guess with a problem like that.


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Old 01-27-2012, 10:37 PM
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thermostat or maybe an air bubble in the system. but if he hasnt done a coolant flush or anything to the coolant its definitely the thermostat


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Old 01-28-2012, 06:05 AM
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thanks.


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