Hey everyone! I'm new to this forum so go easy on me! LOL! I am DESPARATE and REALLY need some help! I just bought a 1991 Toronado Trofeo with the normal dashboard (NOT the one with the VIC display.) Ever since I bought it, it had the classic Toronado "no gauges/no heat/tach only works" problem, so I bought a rebuilt repaired instrument cluster for a good price on Ebay (with a 3-year warranty) from a man who has repaired hundreds of these type of GM clusters. I installed the new one, and finally everything worked... BUT only for about 15 minutes! Then everything quit again and now I'm back to only three little dashes where the climate control display is, and have no heat, A/C, or gauges again. This leads me to believe that there is something ELSE causing this problem. Could it be the body control (BCM) module? I don't know, because the ABS DOES work! Is there some other thing which communicates between the instrument panel and the climate control panel? This is really confusing because I was convinced it was the "classic" bad gauge cluster. Does anyone have any other experience with these things? Thank you SO much for your help!