Re: Trouble starting 96 7.3 in chilly weather(45°)
It does no good to cycle the glow plugs 6 times since they stay on for up to 2 minutes after you turn the key on. The wait to start light is just a idiot light to get owners to wait a bit.
Get a digital volt/ohm meter and test the glow plug relay. When you first turn the key on there should be less than 0.3 volts difference between both of the large post. If the relay test out OK then it is time to test the glow plugs through the connectors on the valve cover gaskets.
96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch