A buddy of mine has a 97 psd and with the warm temp he still has to have it pluged in or it wont start can any of you give me a hand on this thank again Bone
agreed, I had to put a switch in mine, I forgot to turn them on the other day when it was about 40ish. it wouldn't start, had to turn them on and counted to ten, then she fired right off.
Glow Plug Relay or better known as the GPR would be my first guess also. Test it and you will probably find it bad. If it would start but started hard and smoky then it would more likely be some bad Glow Plugs but you can have 4 out of 8 plugs bad and it will still start. It would be a good idea to check the plugs and see if any are bad but I doubt they are causing a no-start situation.