Heater problem

2003 FORD MUSTANG
40,000 MILES • 6 CYL • 2WD • AUTOMATIC
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HANKSTER79
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  • 2 POSTS
After driving car for a while and turn heater on I get heat for a very short time then it turns cold. You can turn car off and restart and again you will get heat for a very short time and then it will turn cold. You can repeat with the same results.
Jan 25, 2017 at 1:20 PM
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JOHNNY G.JR
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  • 320 POSTS
Check fluid level in radiator, refill as needed and bleed air out of system.
Jan 25, 2017 at 3:27 PM
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HANKSTER79
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  • 2 POSTS
How do you bleed air out of system? I did replace the thermostat.
Jan 25, 2017 at 6:07 PM
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DOCFIXIT
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  • 18,828 POSTS
If 3.8L see pic for location of vent. run add coolant until coolant flows from vent
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Jan 28, 2017 at 10:57 AM