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**hatzie** · 07-30-2012, 06:48 PM

Does the fuse blow with the controls set on vent or heat?

The '83 compressor power feed from the dash controls is light green.
It feeds through the firewall to a two position Packard 56 connector. The light green wire wyes out to the pressure cutout. The return from the pressure switch is dark green on the same connector half.
The mating half of that connector feeds the compressor via a dark green wire and the high idle solenoid on the carb with a light green wire. I'd check the high idle wire for damage and maybe the 30 year old solenoid for high current draw.
After you check there look over both green AC wires for damage.

07-30-2012, 06:48 PM	#9
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 5,022	Re: A/C blowing fuses Does the fuse blow with the controls set on vent or heat? The '83 compressor power feed from the dash controls is light green. It feeds through the firewall to a two position Packard 56 connector. The light green wire wyes out to the pressure cutout. The return from the pressure switch is dark green on the same connector half. The mating half of that connector feeds the compressor via a dark green wire and the high idle solenoid on the carb with a light green wire. I'd check the high idle wire for damage and maybe the 30 year old solenoid for high current draw. After you check there look over both green AC wires for damage. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.