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-   -   fuse??????? (http://www.peachparts.com/shopforum/tech-help/73490-fuse.html)

RROSIN1 08-26-2003 11:23 AM

fuse???????
 
i have an 83' mb 300d. i drove to the store and all gauges and lights worked fine. i came out of the store and started the car and no blinkers, no fuel gauge, no temp gauge, no windows. is ther a fuse that these items run on? none of the fuses in the fuse block under the hood appear to be bad. when i started the car this morning, i let it run for ten minutes and when i got in the battery light was still on, it went out as soon as i revved the motor a little bit. please help fast, this is my only car.

MikeTangas 08-26-2003 11:31 AM

With the motor running, check your battery voltage with a DMM, you should be seeing 13.8-14.1 volts. With the battery light coming on until the RPMs are up I'm leaning towards a new voltage regulator. Should be able to replace the regulator, or brush pack, without having to remove the alternator.

neileg 08-26-2003 11:35 AM

Check for a slipping drive belt before you ditch the regulator!

MikeTangas 08-26-2003 11:41 AM

Good point on the drive belt, but since the poster made no complaint about a squallering or squealing belt I made the quantum leap to the regulator. Definitely easy enough to check both out in mere minutes.

RROSIN1 08-26-2003 12:00 PM

checked my voltage and it was 13.87v

neileg 09-10-2003 12:03 PM

Did you get this sorted?

I should have suggested a check for bad earth links, if I had seen your voltage was OK. But worn brushes in the regulator could also be a cause.

RROSIN1 09-10-2003 01:13 PM

problem solved
 
i found a fuse that was visually good. went to remove it to test with a meter and it crumbled. found arcing under fuse. cleaned area, replace fuse, problem solved. thank-you for your help. i have been bit by this same scenario before with enclosed fuses so i allways do physical checks. should have done that first. my bad.

NormanB 09-10-2003 05:46 PM

I know this is shutting the stable door after....... and all that.

But on that age of vehicle it is worth renewing all your fuses now at your leisure - most (apart from the one you have replaced) will be 'tired'.


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