Heat, & A.C. stuck on defrost
07-28-2009, 11:31 AM
#1
2nd Gear
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Member Since: Jul 2009
Location: Ashville Ohio
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Heat, & A.C. stuck on defrost
Hello, This is the first corvette I have owned. It is A 1991 model.Three days after I bought it, the head gasket blew. I had A back yard mechanic replace them, but when he put it back together he could'nt find where A vacume line went. I noticed he blocked off the vacume from the engine with a screw. The heat, and air are now stuck on defrost. I beleve this vacume line is the reson. does anyone know were it goes?
Thank you.
Thank you.
07-29-2009, 01:16 PM
#2
Yes, you're correct. There is a vacuum line tee that goes to the cruise control and under the dash to the vacuum controller. You will need to install the tee and re-connect the vacuum lines. The reason your vents are stuck on defrost is that this is the default position.
