hi everyone,

i got this 1985 diesel 6.9L truck last year in august and am going to replace the glowplugs...

when i got into it i found that some wires were cut and also the glow plug light has not ever lit up when key is turned on....

i would like an oem electrical circuit diag or an aftermarket diagram so i can rewire this to get the glow plugs working.

i need to find out if the ones in the motor are ok or burnt out...

any help will be appreciated