We have a 1990 F350 7.3L dump truck up at our work. Its got the banks turbo kit on it that was installed when we bought it. Othere then that i think its all stock. My question is about the clicking i hear when i turn the key. When its been sitting over night plugged in or for a long time during the day plugged in and i turn the key the wait to start light comes on for 2 seconds and goes off. But i still hear a clicking noise. It clicks for about a min and then stops and if i turn it off and turn it back on it will do it all over again. Are these the glow plugs? and even if i run it through 3 or 4 times it still takes a long time to start. Have to use ether if we have to get out and start plowing because we dont have time to wait on it. So my question is...whats the clicking and is it suppose to do that? cause i think its the glow plugs turning off and on. Shouldnt they stay on not click on and off like that?