I had a problem where my car kept overheating, and it seemed as if the radiator was the problem because the heat from the engine wasn't dissipating. Turns out it was the water pump which pushes the fluid through the engine and the radiator to cool the engine. A new one ran me about 50 bucks plus about 90 for install and 10-15 for new coolant, which gets drained when your working on the engine's cooling system.

 

Fixed my wipers on my 1995 Grand Voyager tonight in the dark on the street in front of my house after reading this thread. The wiper motor ground was bad - did not fix it when I tightened up the bolt, but I got a big philips screwdriver and banged a few times on the head of the rivet that holds the copper ground strap down to the sheet metal, and Viola! It was fixed. Thank you, thank you, thank you!!