Here's another tip... I have been dinking around with my cars for a couple days now trying to get them to start (that should have been the tip-off for me - two cars and neither will start). I checked everything EXCEPT the glow plug igniter. As it always is -- the last thing I looked at was the issue. It's is one of those you plug in and charge up. Well, it doesn't charge up. You can place a plug in it and it only glows about 5 seconds then its dead. So with all that said here's the tiip:

Never, ever assume!!