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#1
11-23-2001, 01:49 PM
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1988 420 SEL brake activation shorts out instument's
If anybody has experience with this I would appreciate advice.
When I hit the brake pedal on my 88 420 SEL the fuel,temp,pressure,speedo,tach, etc.. all go to zero until you release brake pedal then all go back to normal. There is a slight hum when the brake pedal is hit kind of like a resistor noise. the brake lights don't light either when this happens. this problem is intermittent, everything works normal then all of a sudden the problem occurs. thanks 
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#2
11-23-2001, 05:39 PM
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I would check wires for worn insulation. It sounds like some wires are coming in contact with each other.
__________________
Mike
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