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Old 12-22-2009, 11:47 PM
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Join Date: Jul 2005
Location: Cullman, Al
Posts: 42
My 300d will not start

Ok guys, came in Friday night from work driving my daily driver, 300d shut her down as usual. Did not drive her over the weekend,Came out Monday morning the go the work, hit the switch spindling over real fast but will not fire off...never had this problem. checked the voltage to glow plugs seems good. so the question is when turning off the switch it shuts off the fuel at the injection pump so could what ever release this action caused it not to release the fuel shut off therefore not letting fuel get to the injector pump to fire off the engine????

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Old 12-23-2009, 12:07 AM
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Join Date: Jan 2002
Posts: 18,355
Most likely to be a glow plug problem rather than fuel problem. Go to and follow his glowplug diagnostic sequence. You need to check the resistance of the individual plugs if you have pencil plugs. If you have loop plugs you can just look to see if the sqiggly wires are getting red hot. If they're not there's most likely a bad plug.
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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Old 12-23-2009, 12:30 AM
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Join Date: Sep 2007
Location: Long Beach,CA
Posts: 30,037
It would be helpful to know what Year of 300D you have. This would tell us what type of Glow Plug System you have.

To see if you are getting Fuel up to the Injectors you can loosen some of the Hard Line/Fuel Injection Line Nuts at the Injectors and have some one else try to start the car.

If you have a Glow Plug system that has the Glow Plug Relay on the Fender Well on the drivers side of the car (US models). Remove the Plastic Cover and take a look at the Strip Fuse. In the below pic of mine my Fuse cracked and my Glow Plugs did not work at all.
Attached Thumbnails
My 300d will not start-strip-fuse.jpg  
84 300D, 82 Volvo 244Gl Diesel
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Old 12-23-2009, 01:05 AM
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Join Date: Sep 2006
Location: High on a mountainside, near Salt Lake City.
Posts: 557
How does your glow plug indicator light behave?

IS this a 114, 123, 124 or 210 chasis?
1979 240D, 4spd manual, Power Sunroof, manual windows, 147k miles, Pastel gray/Black MB Tex.
1991 300D 2.5 - Smokes like it's on Crack!
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Old 12-23-2009, 01:16 AM
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Join Date: Jul 2005
Location: Cullman, Al
Posts: 42
Ok it's a 1982 300d

And I am getting 11 to 12 volts to the glowplugs, everythig was fine until I shutdown Friday night, and went out Monday morning to go to work and she would not fire off.
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Old 12-23-2009, 01:36 AM
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Join Date: Jul 2005
Location: Cullman, Al
Posts: 42

fuse strip good, like I said I'm getting voltage to the glow plugs. everything points the what happens after a normal shutdown , how does the fuel shutoff work after the ignition switch is
turned off?f
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Old 12-23-2009, 03:50 AM
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Join Date: Nov 2004
Location: Nova Scotia, Canada.
Posts: 6,510
Take your air cleaner off. Give the engine a shot of wd=40. Glow it and try to start. If starts and quits bad fuel or supply issue. If not glow issues or other. Divide and conquer is an old still valid concept.

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