Thank you Cougar, Exactly right on everything.. used a 8mm deep well socket ..
I purchased 6 glow plugs (Bosch and got a deal for 6 at $25 each) As after reading ..and reading and reading other posts/threads .. I figured if one was bad it may not be long before the others go bad ..
My code showed number 2 being the only one throwing the code. I tested the resistance before removing #2 and yes it showed bad.
I had a fight with myself for about 30 seconds about if I really wanted to change the others... I am glad I did..
It turned out... numbers 2, 3, and 4 tested bad.. 1, 5, and 6 tested good.. I changed those that tested good anyway as .. numbers 1 and 6 needed the removing of other parts to get to them.
Thank you for your reply and to this forum for the heaps of information the members part with.
I hope my experience helps someone else also.