Air problem

jobear

Registered
Hope someone can help. I had this same problem with my other Mark ('97). Current is '98 with a three day old blend door, lol.
With the air on and working fine, during accelleration the air gets directed to the window defroster area. When you coast the air comes back through the vents. Does it more sometimes than other. And once never. I have owned the car for three days also, lol. Anybody aware of this?
thanks
 
RE: Air problem

It sounds like you might have a vacuum leak. The vents default to defrost mode when there is no vacuum.

When the blend door was replaced were the EATC unit vacuum lines removed? Maybe they aren't tight enough.

You could also have a vacuum leak under the hood. Check all the vacuum lines there too.
 
RE: Air problem

thanks but I think it is vacuum cause it blows all the time and doesn't cut out.
thanks again
 
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