I have a 99 ford taurus no heat changed thermostat, got coolant flush still no heat blowing cold air help?

Answer 1

If you have good coolant flow threw the heater core .Then check to make Shir the blend door is working .The actuator brakes on Taurus all the time if the blend door doesn't open you will not get heat.It is under the dash on the heater box.

Answer 2

This problem could be classified in TWO categories. Electrical system, OR cooling system. If it's equipped with the 3.0L OHV Vulcan V6, NOT the 3.0L DOHC Duratec 24 valve V6, those engines are NOTORIOUS for having the "brown" coolant problem. Casting material was left inside the engine blocks of those particular engines when they were manufactured new. Consequently, the cooling systems in those cars with that particular engine would be contaminated with rust. The ONLY way to fix this problem would be to perform SEVERAL thorough flushes of the ENTIRE cooling system, which includes back flushing the heater core, the radiator, and ESPECIALLY the engine block!!! It wouldn't hurt to replace the thermostat as well, while you're "in there", but you appear to have had that done already. OR, you could have a control issue. To check this. Turn your climate control fan on to medium speed, and cycle the temperature control from FULL COLD, to FULL HOT. See if you hear a change in air flow. If so, the problem is in the cooling system. If not, the temperature blend door actuator has failed, causing the air not to circulate through the heater core. The only way to repair this, would require instrument panel removal for access the failed component(s). Hope this helps

Answer 3

should like the heater core is bad my sister has a 1999 Ford Taurus it's a good car

Answer 4

I had the same issue with a '98 Jeep Cherokee and couldn't figure out what was going on.

It turned out that the temperature control knob had disconnected from the control unit.

Might help, might not. Good luck.

Answer 5

sounds like the valve to the heater core is not opening.