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Identification of Vac lines at firewall 700 1985

posted by  sdodd on  Thu Feb 20 17:22 CST 2003
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last visit: Sat Jan 23 00:38 CST 2010
[RELATED]

All,

I'm in need of help, to finish my v-8 conversion project. I disconnected a couple of vacuum lines ~4 years ago. My markings for the lines are now too faded to read... and I don't know what the lines are for any more! Help!

The car is an '85 745 that originally had a diesel. The lines I'm trying to identify come from the firewall ~6 inches toward the drivers side, from the centerline of the car. There is a big black bundle through the firewall. Emerging from the bundle is:
1) Small grey vacuum line. (hard plastic)
2) Larger white vacuum line. (hard plastic)
3) White/Red wire.
4) Green/Black wire. (this is the AC request wire)

I believe these lines have something to do with the HVAC, but I can't find them in my manuals. If you could help me identify the white/red wire I would appreciate it as well.

Thanks!
-simon
simon.dodd@hp.com







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