glowplug circuit issue

[Corpse]

ok, so here is the next issue i have... 83 k5 6.2...

start up is normal, but while im driving my glowplugs will cycle randomly. motor is fully warmed up and the light will flicker or even stay on for afew seconds.

should i worry about this? could my glowplugs swell and break as a result of this problem ?

thanks

fyi dunno what happened with the text size. sorry bout that

[Liftgate]

Do you have the old stick style glow plug conroller or the newer style?:confused:

[Corpse]

old stick style

[Liftgate]

I would do a new contoller modification. The old stick style one might be your problem. The newer style is a lot better. You can leave the old controller bolted in but just unhook the wiring connector to it. You can remove it also and put a pipe plug in it's place. A local hardware store would have that. It's cheap. You don't need the obsolete block off plate for that. Get a copy of the Diesel Page 6.2 Engine booklet. It will explain how to upgrade the controller. You can also install a manual glow plug heating circuit in case the controller "acts up". I did all this to my 84 suburban. It had the old stick style controller too. Hope this helps. ;)