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  #1  
Old 01-06-2006, 07:17 PM
Cazzzidy's Avatar
French Fry Fuel
 
Join Date: Feb 2004
Location: Santa Cruz, CA
Posts: 118
Dash Electrical Problems

Hey guys,

I need help finding some serious dash related electrical problems. Here is the story:

My car has always had a bouncy fuel guage, sometimes inaccurate. I always assumed it was a loose ground. Also, from time to time my blinkers would "stick", that is, they would light up solid but not tick. I always thought the solenoid was on its way out. Didn't give it that much thought.

One day, I start the car, and notice NOTHING works in the dash. No blinkers, no fuel guage, no tach, no oil pressure... the clock, however, works, and I believe the dash lights do aswell.

Where should I start? Is this something I can handle myself? I am not going to spend another dime on professional help.

Thanks a lot everybody!

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1982 MB 300DT - Running Great @ 104K!

1972 MB 220D - RIP @ ~200K (Dropped prechamber)
1992 MB 190E 2.6 - SOLD @ 145K
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  #2  
Old 01-06-2006, 09:20 PM
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Join Date: Dec 2004
Location: Columbia City Indiana
Posts: 345
Since your oil guage is mechanical and not electrical this would rule out a bad ground unless your oil guage actually does work then I would check the ground as this is the most common thing to go wrong.
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  #3  
Old 02-08-2006, 12:05 PM
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moviesharq
 
Join Date: Feb 2006
Location: St Bonifacius, MN
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I have a similar issue. How would you check/replace the ground? Details would be great since I'm new to the electrical thing.

Thanks
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Twin Cities, MN
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  #4  
Old 02-08-2006, 12:34 PM
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Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
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Do other ignition-switch controlled devices work such as the heater-blower? If not, I suspect the ignition switch, start out by wiggling the key slightly.

- Jeff Miller
190DT
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  #5  
Old 02-08-2006, 12:50 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by Cazzzidy

Where should I start? Is this something I can handle myself? I am not going to spend another dime on professional help.
You start by replacing the fuse. Don't even bother to report back here and tell us that it is good. Just replace it. And, replace it with some higher quality brass or copper fuses and avoid that aluminum crap.

It is most definitely something that you can handle yourself.
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  #6  
Old 02-08-2006, 06:50 PM
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Join Date: Apr 2002
Location: NW WA
Posts: 6,299
I replace ALL fuses when I get an old MB, like Brian said get the good brass ones, there cheap.

Then the eng to body ground (driver side, bolted to bell housing) Take it off where it attaches to the body, apply sand paper/wire brush, Then there are two grounds behind the instrument cluster. Maybe you wont have to go there

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