The VSS (vehicle speed sensor) is a very big possibility, its located on the top of the transmission and should have 3 wires to it.
I would unplug this first to see if the terminals aren't corroded or loose. If they look good take it to another garage (your best chance would be a dealership as they have seen all these problems before and would be the quickest diagnosis) and dishout the money (usually about a half hour to one our of labor) to check the problem and give you a run down on whats wrong and what it would cost to repair it.
Monday, June 26th, 2006 AT 6:55 PM