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Old 11-16-2011, 06:01 PM   #1
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Heater Issues

I own a 03 v6 mustang, and it's getting chilly here, low 40s and it's getting lower everyday, and I'll start the car and I know the heat won't just blast out the second I start it, but mustangs are known for heating up quickly. So about 3-4 minutes after I start the car the heat starts getting hot, and then about 30-60 seconds later it gets cold again, and then about 30-60secs later it's hot and it just keeps happening till where it seems it's more cold than heat. Any ideas?
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Old 11-17-2011, 03:50 AM   #2
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Re: Heater Issues

The temperature gauge should slowly increase until it hits the "R" in normal, and then stay there.
After that, it could be a few possibilities. There is a bleeder bolt to remove air from system(remove bolt, fill to top,squeeze upper hose,fill to top), Fan malfunction, clogged system + heater core that needs flushed, thermostat needs replaced or was installed incorrectly.
Good luck with it, hope dats some help-
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