78 vac info
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,161
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From: pr, frederick md.
78 vac info
anybody got any 78 vac info for the under dash scematitics. hooked up the new dash and the heater controls dont work right. any info would greatly be appreciated. any tips on 78 vac problems woud help also. got vac to heater control, but no movement when changing control switch from heat to defrost/
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by redc3
anybody got any 78 vac info for the under dash scematitics. hooked up the new dash and the heater controls dont work right. any info would greatly be appreciated. any tips on 78 vac problems woud help also. got vac to heater control, but no movement when changing control switch from heat to defrost/
My suggestion is look at what's suppose to happen with those doors during each operation and than connect those mini hoses to the correct port in the switch. This is assuming you have all the ductwork still out...otherwise it will be nearly impossible.
I would start with A/C MAX...all doors are closed to the cabin and it permits no fresh air in. Than work backward...let me know if this is helpful.
