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#1
03-20-2007, 10:58 AM
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Glow plugs... You tell me...
My glow plug light is not coming on. I tested all the plugs, and #4 was not giving me a continuity reading. I replaced it. All the wires from the relay to the plug are giving me a good reading. All the other plugs are giving me a good reading. The fuse on the relay checks out. I've got 12v running from the relay to the 5 glow plug output pins. Whenever I unplug the plug wires from the relay, I get the glowplug light via turning the key, so it's not the bulb...
When I'm in the car, with the come light on, the dome light dims until I hear the relay kick off, so I know the plugs are drawing some power. What am I missing here? BTW 1982 300TD. Thanks
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'90 300SE --- 173k miles --- (Odometer just stopped working!) '85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10 '82 300TDT --- 236,xxx miles --- (My first one) Sold July '09 
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#2
03-20-2007, 11:01 AM
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Do you have a spare relay to test with?
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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. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K
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#3
03-20-2007, 11:12 AM
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At this point I would bench test the GPs or pull the injectors and actually look down the hole. I've had GPs pass the continuity reading but still be bad.
__________________
 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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#4
03-20-2007, 05:12 PM
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I don't have a spare relay....
I might just replace the other 4 GPs
__________________
'90 300SE --- 173k miles --- (Odometer just stopped working!) '85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10 '82 300TDT --- 236,xxx miles --- (My first one) Sold July '09
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#5
03-20-2007, 05:37 PM
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Quote:
__________________
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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