Question about 2000 Ford Taurus

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A/C blows from defroster vents during acceleration and from dash vents when coasting.

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  • Ford Master
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This is because you have a vacuum leak. It defaults to defrost by law. You need to check a few things under the hood.
1. check the vacuum line that runs from the engine to and through the firewall into the passenger compartment for a leak. It is usually about 1/8 inch black plastic line.
2. check for a vacuum leak in the line going to the storage canister (Plastic ball) that stores vacuum for when you go up hills.
3. check for a leak in the canister.
4. check to e sure the check valve is not bad. It prevents vacuum loss when you shut car off.
report back and don't forget to rate if this helps you.

Posted on Jun 30, 2009

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