Ivoskis
Active member
The glow plugs get no juice and hence no starting the engine. So I found a relay panel above the left knee of the driver but it is confounding me as it is different from as shown on my "generic" Chilton circuit diagram.
Also, could not find any group of 4 black wires with red, green, dark and light blue tracers as they come off the glow plug harness on the engine and then pass through the fire wall to the instrument cluster. The "100" labelled relay I assumed to be for the glow plugs has two heavy wide spade terminals for like 40A and two smaller ones for the solenoid. It ohm-ed out OK and clicks when powered too but I found no continuity from the sockets the glow plugs. Also, there were no mice chewing marks or burnt smell. My diagrams however show 2 two more but otherwise functionally similar relays with 4 contacts but my panel has some larger multicontact relays. Googling showed a longish rectangular relay, plus a squarish one, so which is which in the age of fake news? The car was Mexico assembled, if this helps t ID it.
Mirrors did not help me picking up this color scheme wiring below the steering wheel but I did trace the wiring from the GP's on the engine block to underneath the battery tray and then into a covered plastic channel about 2" wide. This hid a 4-pin connector with identically color coded wiring which then dives into the firewall to the instrument cluster area. All wiring appears to be intact and this problem only started after I replaced the turbo and cylinder top as the cam bearing were seized. The engine now starts and runs ok but only if I briefly McGiver 12V to the glowplugs directly. Only then will it will fire up.
Is this relay out of sight perhaps, accessible from above only? Too difficult to see as the harness is wrapped and there is other stuff in the way. There is also a small fuse-like 2-pin relay, which on opening up appears to be a thermal timed delay type, presumably for the glowplugs. The relay is is both quite visible and accessible with two heavy red wires to it.
Also, could not find any group of 4 black wires with red, green, dark and light blue tracers as they come off the glow plug harness on the engine and then pass through the fire wall to the instrument cluster. The "100" labelled relay I assumed to be for the glow plugs has two heavy wide spade terminals for like 40A and two smaller ones for the solenoid. It ohm-ed out OK and clicks when powered too but I found no continuity from the sockets the glow plugs. Also, there were no mice chewing marks or burnt smell. My diagrams however show 2 two more but otherwise functionally similar relays with 4 contacts but my panel has some larger multicontact relays. Googling showed a longish rectangular relay, plus a squarish one, so which is which in the age of fake news? The car was Mexico assembled, if this helps t ID it.
Mirrors did not help me picking up this color scheme wiring below the steering wheel but I did trace the wiring from the GP's on the engine block to underneath the battery tray and then into a covered plastic channel about 2" wide. This hid a 4-pin connector with identically color coded wiring which then dives into the firewall to the instrument cluster area. All wiring appears to be intact and this problem only started after I replaced the turbo and cylinder top as the cam bearing were seized. The engine now starts and runs ok but only if I briefly McGiver 12V to the glowplugs directly. Only then will it will fire up.
Is this relay out of sight perhaps, accessible from above only? Too difficult to see as the harness is wrapped and there is other stuff in the way. There is also a small fuse-like 2-pin relay, which on opening up appears to be a thermal timed delay type, presumably for the glowplugs. The relay is is both quite visible and accessible with two heavy red wires to it.
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