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Corvette95 · 03-14-2006

a factory service manual would help you a lot. The first thoughts is the ac control head....take it out, take it apart carefully and clean the contacts. It could be a blend door (not fun on a 90 the worst) or it could be the blower controller out on the firewall in front of the passenger side (inthe engine bay side -three seven mm screws) but before I take things apart, with a manual you can read what is happening thought the ac temp digital readout...thats the quickest and best way. Check out helms inc for manual or ebay...good luck

03-14-2006	#2
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,105	Re: ac and heater problems need help a factory service manual would help you a lot. The first thoughts is the ac control head....take it out, take it apart carefully and clean the contacts. It could be a blend door (not fun on a 90 the worst) or it could be the blower controller out on the firewall in front of the passenger side (inthe engine bay side -three seven mm screws) but before I take things apart, with a manual you can read what is happening thought the ac temp digital readout...thats the quickest and best way. Check out helms inc for manual or ebay...good luck __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454