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#1
12-21-2006, 02:05 PM
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location of glow plug relay on 79 300D?
I found several threads on this, but I could not find anyone that said exactly where it is, and I could not find any thread with a picture.
This is not the style where it is on top of the driver side fender well. From what I have read, it is in the dash somewhere, but I can not find it. Many have said it is on or near the brade pedal bracket, but the only relay there that I can find is the cruise control relay. Can anyone help or send pictures or tell me how to find it? Thanks 
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#2
12-21-2006, 02:23 PM
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if it's not been answered by the time I get home, I will post a pic of mine... don't forget it will only have one wire leaving it, due to the serial nature of the GP's on this vintage vehicle.
I belive it is on the steering column below the dash cluster. John
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
12-21-2006, 02:52 PM
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A picture would be awesome.
The wire that goes from the relay to the fuse on the firewall in the engine compartment is missing (I just bought the car), so I don't have a wire to follow back from the fuse to the relay. I'm wondering if the relay was also removed (before I got the car) and that's why I can't find it. But I can't find any loose wires under the dash where the relay should connect 
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#4
12-21-2006, 03:29 PM
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Quote:
 WHY??? arrgh, aint it crazy what PO's do? I bet the OEM relay was upgraded to the modern paralel type and the seller kept the stuff for another car when they sold the car. I have a parts car with wire and relay if you don't have yours just let me know. I'll try to get you a pic tonight. John
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!! 1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#5
12-21-2006, 03:52 PM
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The plugs were still wired in series (not parallel), so I don't think the previous owner upgraded the glow system. All the plugs were burned out, so I think the relay went bad, the guy pulled it out, but was too cheap to put in a new one. He was starting it with starter fluid.
Fortunately, he doesn't seem to have done any damage with the starting fluid, at least that I can tell. It runs great, and only has 94K original miles. I've started it a few times with mostly WD-40 and and little starting fluid and driven it several hundred miles. There is one slightly burnt wire (large red hot one off the light switch). I'm wondering if that powered the relay. I bought another relay (I think I overpaid at $175), so I might send that one back, and wire in a ford starter solenoid and a push button switch (at least temporarily) since I don't know if there is a wiring problem. I don't want to start it with starting fluid at all, so that may be a stop gap solution until I figure out the relay situation. Thanks for any pics or help you can give, and I might take you up on that relay and wire
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#7
12-22-2006, 11:44 AM
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For the $175 you paid, you could have bought the upgraded parallel relay and glow plugs from Phil, (Fastlane) the reason this forum is available.
I do not have any pic's and my car is an '82.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D
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#8
12-23-2006, 05:41 PM
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Well, for now I did a nice little $20 fix with a ford starter solenoid and push button switch. Worked like a charm, and I can completely (albeit manually) control the glow cycle.
I still would like to know where the relay is so I can fix it "right".
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#9
12-23-2006, 07:19 PM
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Quote:
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 1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#10
12-23-2006, 08:01 PM
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__________________
1982 240D Euro Stick 4
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