For 1990-2009 cars

Checks | Causes
--- | ---
DEFINITION: A large engine RPM increase is noted in fifth, fourth, third, second or first in Drive range, with little or no vehicle forward speed increase. Shifts into fifth, fourth, third, second or first gear are soft or do not occur.
Control Valve Body Accumulator Assembly |

• | Accumulator piston seals

• | Porosity in the accumulator piston housings

• | Stuck or missing ball check valves

Pressure Control Solenoid | Damaged
Fluid Pump | Damaged