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Old 06-03-2010, 01:31 AM
emerydc8 emerydc8 is offline
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Join Date: May 2007
Location: Arizona
Posts: 760
I followed Andras's DIY instructions and was able to replaced my lower harness in 2:45. His string idea probably saved me a few hours. I used an old telephone line and had a helper on top pulling it through the hole in the body toward the module box.

Unfortunately, my oil quantity light still comes on; so, now I know it's not the harness. In any case, I think it really needed to be replaced (pictures). The wires to the alternator and starter looked to be in better shape than the oil quantity and pressure wires.

You will need two 12" extensions and a 10 mm deep socket to get to the nut that holds the harness right where it goes up through the body. I think the hardest part of this job was trying to deal with the small nuts on the alternator, starter and the 10 mm harness mount nut. I also used a ratcheting angled screwdriver wrench from Sears to get to the small screw on the starter.

Please tell me I was right to replace this.
Attached Thumbnails
E420 Oil Quantity Indicator-img_2237.jpg   E420 Oil Quantity Indicator-img_2238.jpg   E420 Oil Quantity Indicator-img_2239.jpg  
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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles
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