1975 300D Glow Plugs

groeger · 01-05-2012, 11:47 AM

Car would not start so I tested my glow plugs and wires through the relay plug. 3 tested fine, 1 tested open, and 1 tested at 22.5 ohms. The 1 that tested open was 2nd in line from the firewall. I swapped it with the 1 in the first position from the radiator and now the car starts with no problem even though I have one bad glow plug. Any thoughts on why this is working.

Also, do I need to be worried about the one that tested at 22.5 ohms. Any info would be appreciated, thanks.

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PelicanParts.com · 09-04-2012, 02:34 AM

I would need pictures to verify which grounding circuit your glow plugs have.

For the moment, replace the bad units and enjoy the car.

roy@pelicanparts.com

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09-04-2012, 02:34 AM	#2
PelicanParts.com SPONSOR Garage is empty, add now Join Date: May 2012 Location: Harbor City, CA Posts: 483 Drives: Porsches, BMWs, Mercedes-Benz, MINI Coopers and more!	Answer I would need pictures to verify which grounding circuit your glow plugs have. For the moment, replace the bad units and enjoy the car. roy@pelicanparts.com . __________________ Pelican Parts *The One-Stop Shop for the DIY Mechanic!* 1600 240th Street \| Harbor City, Ca 90710 \| T: 888.280.7799 \| Like us on Facebook!

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