I have a 1973 nova hatch back and I just had the rocker studs converted from push to screw in style. I had to take off the heads to carry them to my local machine shop to do so. Now that I have everything put back together my Heater wont turn on and my wipers will work but the pump will not turn on for the fluid. I also had to replaced my after market temp gauge. Every thing else, including the gauge, is working but the heat and wiper pump. All fuses are good on both ends and I could not find any bad wiring. If some one could help with a thought or suggestion that would be great.