What could cause this?

[3000gt]

OK just got new m1038 truck from IP. Would not start (no wait light) (IP) they used either to crank. (I found out my and alternator was proving my vehicle with 38 volts) so new alternator lol

I replaced smart box with another smart box and a new GPC unit. Bought and replaced 8 new glow plugs (tough to get out).

NOW, turn switch on light comes on ~10 seconds, goes off and she cranks perfect. But my wait light will blink once every 10 seconds while humvee is running. Wonder how many people have seen this one lol thanks

Should I worry?

 

[gimpyrobb]

Its called afterglow, its perfectly normal.

 

[3000gt]

Now that it is cold outside, when i turn switch on the wait light comes on for a split second and shuts off. No power to glow plugs. I read a lot of posts so I am thinking need to ground box, possible new smart start box. (have new GPC unit and glow plugs)

 

[1 Patriot-of-many]

You'll need to check your glow plugs 1.5 ohms to 5 ohms is good, again before installing a new box..