1989 300 te falls on it's face when it rains - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 01-20-2008, 09:08 AM Thread Starter
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Date registered: Feb 2007
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Unhappy 1989 300 te falls on it's face when it rains

i have been trying to figure out a problem with this car for a year now. The car has no throttle response, and will barely idle at the slightest sign of moisture in the air. I have checked the cap for cracks, replaced the wires, because the coil wire looked like it was burnt from arcing on the power steering resorvoir [where the previous owner had it tightly wire tied to], the coil had been replaced shortly before I bought the car. The guy thought the coil was the problem and told me it ran rough after it rained but the coil took care of it. WRONG. Yesterday I took the throttle position sensor off to see if I could clean the connections, a mechanic at an independent Mbz shop told me to do this. When I got the sensor off I found no connections, it was a plastic piece that attached to the throttle plate. No electronic connection to get condensation in it. The next I found was a bare wire at the sensor on the end of the cylinder head, it is the green sensor with the 2 seperate connectors on it. My question is could this wire being bare effect the running of the car when it rains. I have kept the car in the garage when it has rained and it still happens. It is very sensitive to the moisture. Any advice on this problem would be much appreciated. Thank you
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