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Old 12-26-2004, 10:42 AM   #3 (permalink)
wadman
BenzWorld Member
 
Date registered: Dec 2004
Vehicle: '93 300E 2.8
Location: NE Illinois
Posts: 248
RE: engine wiring harness problem

On the early 90's inline 6 engines, a large bundle of wires runs along the top of the engine. These wires connect to all sort of sensors. The insulating material of the wires degrades over time (quicker with higher temperatures) and begins shorting out. This causes sensors to give false signals or even damages them. The result is a poor running engine. Depending on the model, the harness can cost anywhere from $500 to $700 USD just for the part.
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