can any one tell me were the block heater is on a 1986 300 sdl? also i can't find the cord to plug it up. the manual says it is in front of radiator behind the grill. there is a wire down where the washer line is runing to my head lamp washers that looks like it used to have a plug on it. is there any way to tell if this is the wire? any pics would be helpful.I followed the wire and it whent to the fuse box. thanks in advance!

 

just put in 2 new glow plugs, both that was in it where bad ,turns out no.2 and no.4 glow plug wires are bad! any ideas? can i bypass the wires?no.2 ohms out 38 ohms no.4 is 139 ohms.also how can i tell if the wire i think is the block heater is the block heater? no fun to start when cold