Ac

Asked by Aug 15, 2017 at 05:05 PM

Question type: Maintenance & Repair

My 2004 ford taurus a.c. on blows
through defrost. This problem just
started. How can I fix it.

1 Answer

254,775

The A/C defaults to the defrost vent when the engines intake manifold vacuum supply line is cracked, broken or disconnected. That's because when there is no vacuum the blend doors won't operate due to low or no vacuum. To fix, find the hose or connection that has the leak. Look in the engine bay around the intake and along the upper back section of the firewall.

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