The vehicle rpms would go up but the car would barley move, or while driving going to accelerate the vehicle would not go faster to engage in traffic, corrosion of pins in the transmission wiring harness that connects to the engine wiring harness. this harness is also tied to the abs, traction control. it causes the vehicle to become unsafe when driving as if it acts up you cannot accelerate and sort of chugs along. dangerous in on ramp and traffic situations. this also caused the solenoid in the transmission to short out as it was hanging up on the shift which caused a clunking sound. the transmission wire harness was replaced which showed 3 corroded pins. the solenoid in the transmission was also replaced. *tr