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#1
01-28-2019, 05:00 PM
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1984 300sd wont start help!!!!!
My turbodiesel wont start. This is what i know. Fuse good to glowplug relay showing battery voltage, power to glowplug relay showing battery voltage. Glowplug connector is not showing any voltage to any of the glowplugs. What can you clean the end of the glowplug wiring harness that attaches to the glowplugs? They have lots of oil and stuff on them.
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#2
01-28-2019, 05:07 PM
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Are you hearing the Glow Plug Relay cycle when you turn the key to the Glow position. You should at least see a dimming of the dome light.
__________________
Sam 84 300SD 350K+ miles ( Blue Belle )
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#3
01-28-2019, 05:55 PM
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No i dont hear anything.
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#4
01-28-2019, 07:27 PM
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Check the 80 amp glow plug strip fuse closely.
They can have hairline cracks.
__________________
78 W116 300SD 'Desert Rose' new as of 01/26/2014 79 W116 300SD 'Stormcloud' RIP 04/11/2022
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#5
02-05-2019, 11:57 AM
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So im responding and continuing the post. The 1984 300sd ive noticed when continuously starting there seemed to be smoke coming from where the starter was. Did i burn it out?
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#6
02-05-2019, 12:09 PM
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Not if it is still v turning over the engine. You do need to let it cool down after continued start attempts. How many years has it been since the car last started/ran?
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Jim
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#7
02-05-2019, 12:50 PM
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So, I'm confused. My 84SD has a simple spade connector held to the glow plug with a small nut. Cleaning would only require wiping with a rag perhaps after spraying with a solvent.
You need battery voltage to the GP for them to heat. If you have voltage thru the fuse and not to the GP, I'd suspect the relay itself.
__________________
85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.
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#8
02-05-2019, 02:32 PM
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According to the FSM, try cycling the Glow plugs several times, for about 30 seconds, without starting. Then try to start. This charges a large capacitor inside the Glow Plug Relay. This is common after the car sits for a few days or more.
I eventually had to replace them as the relay became very temperamental, especially in cold weather.
__________________
Sam 84 300SD 350K+ miles ( Blue Belle )
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