First speedometer doesn't read and Heater blows but not hot at all a/c works fine.
by James Leblanc
(Lake Charles, LA)
I have a 1984 Corvette the speedometer does not tell speed it is lit up but won't read and all other gauges work and display. The heater also does not work it will blow air but the air is not warm at all but the a/c works perfect. PLEASE HELP ME DIAGNOSE.... THANKS!