Heat Problems

[97 ZR]

I have a 95 GA and the heat is only blowing out the vents in the dash. I replaced the mode switch and that did not fix the problem. Any ideas would be greatly appreciated.

Thanks

[J-Ri]

Check the mode door and actuator. Also check for vacuum leaks that could render it inoperable.

[xeroinfinity]

Sounds like the blend door is not functioning correctly.
Did you notice any thing disconnected when you serviced the modul ?

also this link might come in handy!

[Arokh]

This is a common problem.

Open the hood and follow the vacuum hose (probably hard plastic) coming out of the dash/firewall near the passenger side and look for breaks.

Hint - it's most likely broken up front, drivers side, near the battery. I think the layout of this hose has it rubbing on a piece of sheet metal near the battery mount and it eventually breaks it. You should find both pieces, snip a bit off each to get a clean end and patch it with a piece of vacuum hose.

[Arokh]

Taking pictures of something else today, so I snapped a picture of where I fixed it in my car (95 GA). Yours might not be broken in the same spot but it's a place to start!

See link:
http://s39.photobucket.com/albums/e1...uum_patch2.jpg