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  #16  
Old 05-20-2010, 04:10 PM
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Quote:
Originally Posted by Silver_300D View Post
Alright, another update. I checked the voltage of the battery and it read 12.4, probably a little low from me trying to crank it so many times. I replaced the starter and now the starter wont even crank. I double checked the wiring to it. I checked the battery and main grounds. I tried jumping the neutral safety switch and still nothing. What else could it be? Starter relay? If so, is there a way to test it? Any help would be greatly appreciated. I'm going crazy trying everything with no success.

Thanks,
Brendan
Do this. Turn your lights on and have an assistant watch the headlights while you crank it. If the lights dim, then I think you can rule out the starter relay because current is flowing through the relay OK.

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1987 190d 2.5Turbo

Last edited by benhogan; 05-20-2010 at 04:11 PM. Reason: huh
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  #17  
Old 05-20-2010, 04:32 PM
1984 Federal 300D Turbo
 
Join Date: Sep 2009
Location: Portland, OR
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It won't even crank at this point....
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  #18  
Old 05-20-2010, 07:43 PM
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Originally Posted by Silver_300D View Post
It won't even crank at this point....
If it is a US car there is a wire junction block in front of the Battery on the Fender Well.
Us a heavy wire; wear Gloves and with the Shift Lever in park Jump from one side of the Terminal Block to the other and see if the Starter Cranks.

If you Starter Cranks from there you either have a Neutral Safety Switch Problem or your Ignition Switch is not working correctly.

To see if it is the Neutral Safety Switch; from another forum:
#Above the accelerator pedal is a 4-wire plug with a harness that runs down to under the accelerator pedal and to the transmission tunnel. Unplug it, jumper across the two purple wires in the female plug and try to start again. If it starts, you need a Neutral Safety Switch.”
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  #19  
Old 05-20-2010, 10:45 PM
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Try this...

This worked on my Volvo with a bad Neutral Safety Switch.

Move the shift lever from "P" very very slightly towards the "R". Do it just a hair.

If it starts, then NS switch is bad.

You said it does not crank but do the lights dim at all when you attempt to crank it?
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  #20  
Old 05-21-2010, 10:41 AM
1984 Federal 300D Turbo
 
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Diesel911 - I didn't have a heavy cable to I unscrewed wires from one side of the terminal block (the smaller wires) and placed them over the cables on the other side with the key in and turned on. What I got was the buzzer that sounds when the glo plugs are warming (normal). Nothing from the starter though. My question is, is the way I jumped it adequate or do I need to jump the cables with them in their respective locations on the terminal block?

benhogan - I don't have another person to look at the headlights while I turn the key over. Is there another way to test? I'll try moving the shift lever and starting like you suggested.
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  #21  
Old 05-21-2010, 04:33 PM
1984 Federal 300D Turbo
 
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Location: Portland, OR
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So I recharged the battery, nothing. Tried starting it lightly out of park like benhogan suggested. Tried starting it in neutral. Tried jumping across the terminal block. And finally, found someone to look at the headlights as I turn the key. The headlights don't dim at all.

So seems like it's the starter relay. So I called a local place to see if they sell them. They told me they didn't think my model even had a starter relay. Is that wrong? I thought the starter relay was the silver "cube" on the drivers side wheel well. There are 2 of them... are they both the starter relay?
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  #22  
Old 05-21-2010, 05:13 PM
RAYMOND485
 
Join Date: May 2005
Location: CALIF
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300D NO START

1984 300D TURBO 152K
NO START, TAP THE TOP OF SOLENIOD=STARTER AND START THE ENGINE, USE A LONG 3/8 EXTEN TO TAP THE STARTER NEW STARTER AND NEW OPTIMA BATTERY REV RED TOP AND IT FITS
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  #23  
Old 05-21-2010, 05:54 PM
1984 Federal 300D Turbo
 
Join Date: Sep 2009
Location: Portland, OR
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Raymond485 - I'm not sure what you mean. Can you clarify please?


I just replaced what I'm assuming are the starter relays (the 2 silver cube relays on the divers side wheel well) and still absolutely nothing happens when I turn the key. The glow plug light doesn't even come one... does that mean anything?

What else could it be? I'm starting to run out of a plausible explanation here... Is there a fuse that could be blown? Maybe it's something with the ignition system?
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  #24  
Old 05-21-2010, 08:00 PM
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Quote:
Originally Posted by Silver_300D View Post
Diesel911 - I didn't have a heavy cable to I unscrewed wires from one side of the terminal block (the smaller wires) and placed them over the cables on the other side with the key in and turned on. What I got was the buzzer that sounds when the glo plugs are warming (normal). Nothing from the starter though. My question is, is the way I jumped it adequate or do I need to jump the cables with them in their respective locations on the terminal block?

benhogan - I don't have another person to look at the headlights while I turn the key over. Is there another way to test? I'll try moving the shift lever and starting like you suggested.
I do not think what you did would work.
Look at the size of the wires that are attached to the Terminal Block. About that size will work.
Or use the open end of an old wrench to span the 2 sides.

On the Terminal Block on the far right in my pic are 2 wires. A Purple one and a White one.
The Purple one goes to the Glow Plug Relay and the White one comes up from the Starter Solenoid.
Assuming the White Wire is still connected to the Solenoid posative Voltage to that wire should engage your Solenoid and if the Solenoid is working your Starter should crank.
Attached Thumbnails
Trouble Starting... Starter Relay?-wire-junction-bloc-123c.jpg  
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  #25  
Old 06-03-2010, 10:56 PM
1984 Federal 300D Turbo
 
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Location: Portland, OR
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Well, after all that troubleshooting I decided to recheck the grounds again and discovered that the bolt to the bell housing was loose! One I tightened that down it's now starting like a champ every time.

Thanks everyone for the help. I'm glad it turned out to be something simple... just wish I would have noticed it earlier. Lesson learned!
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  #26  
Old 06-04-2010, 09:24 AM
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Quote:
Originally Posted by Silver_300D View Post
Diesel911 - I didn't have a heavy cable to I unscrewed wires from one side of the terminal block (the smaller wires) and placed them over the cables on the other side with the key in and turned on. What I got was the buzzer that sounds when the glo plugs are warming (normal). Nothing from the starter though. My question is, is the way I jumped it adequate or do I need to jump the cables with them in their respective locations on the terminal block?

benhogan - I don't have another person to look at the headlights while I turn the key over. Is there another way to test? I'll try moving the shift lever and starting like you suggested.

ahhhh! don't do this!
you want momentary contact of these wires. if you move the wires under the screws, your' starter will engage all the time!!! (once you figure out what's keeping it out that is.)
believe me! you' DO NOT want the starter running all the time.
put the wires back where they were and get two big screwdrivers and put one on each screw and then touch the shafts together. it should start.
since it does not, I'm betting you have a bad starter. again, New does not equal good. it must be tested. pull it back out, and get it checked.

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