73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: 87C20 on September 14, 2010, 09:26:22 am
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Found a good video on heater core removal. This project is next on my list...
http://www.youtube.com/watch?v=LBJkELB1Lz4&feature=related
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The guy in the video wasn't quite correct in identifying the bolts sticking thru the firewall that need their nuts removed. There's one on top and 2 underneath the AC housing. The outboard lower nut is a pain to get out without removing the inner fender or getting access thru it. That's for a '78 C20 with AC anyway.
Also, once the interior ductwork is out, check the small vaccuum hose going into the middle vaccuum motor. Mine was completely shot & I replaced it while I had it in sight.
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gosh darn i hate them ignant bolts