My wipers travel too far, slamming into my hood on the down and eventually going off the drivers side window on the up. When I first start the car they seem to work fine prior to putting the car in drive. I was told I need a new wiper transmission and it will cost me about $250 - $300 for the part and labor. Does this sound accurate or could the fix be simpler than replacing the entire transmision? Maybe the motor or linkage?

 

Might be a loose pivot bushing somewhere in the linkage. Looks like some of those things are available as parts.

Until you start taking it apart for a look, it's hard to say WHICH linkage is loose.

 

Thanks Jim. The picture is very helpful.