seems to me that there has been lots of post on this topic, i have had issues with mine, still, for 4 years now, something new all the time i guess.  The thing i can remember most is that every one agrees that doc rebuilt has the best diagram.  thinkin to that adam apple had a downloadable wiring chart of complete wiring, vac system, not sure though, good luck....
L

The vac. diagrams I have are for the headlight/wiper door systems...nothing for the HVAC...best bet would be the factory service manual, or an AIM.

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Joel Adams
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thanks guys I had researched old posts and did not find much and nothing of what I needed. I had bought a complete vac set a couple years ago it had nice instructions for the basic eng/headlamps/wiper but nothing on the AC/heat I think I may have found my answer at "thepartg@thepartguy.com I used This link before to do the AC wiring and Vac lines on a 68 stang He E-mails the info direct to you pretty quick

Well I recieved my diagram with in a few hours but it was the same as in the AM but a lot clearer I would still like something color coded and with lengths I will check out doc rebuild

I am looking for a copy of the vacuum diagram for the wiper doors on a 69 Corvette. I understand that you may have a downloadable copy. If so, could I ask you to e-mail me a copy of it to mrrichamore@embarqmail.com  ?

Rich I will try to send you what I have. Just remember the 68 is a least slghtly diff. then any other C3 I would also like to post a thank you to Chris Petris at corvette clinic Whom I spoke to at Carlisle in August and who was able to supply the last bit of info I needed

You'll find a simple to read and understand diagram in the Corvette Central catalogue for 68-82.

Thank you  ian80  I believe I have every thing in place