Originally Posted by cadillackid
as long as the engine starts I say drive it all day!... some engines like mine dont even have glow plugs or grid heaters.. they arent required for Diesels.. its summer you probably wont even have a slow start... worst case it might smoke for a little bit till all the cyclinders warm up and get firing cleanly...
if you have a block heater you can plug it in and fully warm the engine which will ensure it should start right off.
Diesels wont "ping" or pre-ignite as the timing is controlled by the fuel charge... unlike a gas engine, theres no fuel in the cylinder during a good portion of the compression stroke.. so therefore even a stuck-on glow plug has nothing to burn...
it COULD cause ever so slight early ignition when the fiuel charge is injected just because it might accelerate the flash-over a bit but usually the only damage is the glow-plug itself gets damaged from over-heating the plug..
That is pretty much what I expected but I have been bitten in the backside more than once by details that I did no know beforehand.
I have driven WAY more miles on a diesel without any sort of glow plugs than I have rigs with. I did have to slide my BBQ under the oil pan of my 8v71 one February in South Dakota.......
I think I have a good idea now that there are no hidden surprises to be found by driving a 7.3 without working glow plugs.
Thanks Everyone for the input.
Wow! Seattle to Oakland $84 on Alaska Airlines...