Engine revs up abnormally high while driving, and no acceleration
Probable cause(s)
Low transmission fluid (HCF-2) level
Drive pulley, driven pulley, pulley shaft, pulley belt, and pulley related parts worn or damaged
Transmission fluid feed pipe worn, damaged, or out of round
Forward clutch assembly defective
Reverse brake defective
Reverse brake piston stuck
Transmission fluid pump worn, binding, or foreign material in transmission fluid pump
Transmission fluid pump drive chain or transmission fluid pump drive/driven sprocket worn or damaged
Valve body assembly defective
Stator shaft worn or damaged
Solenoid wire harness worn or damaged
PCM defective
Notes
Check the drive pulley, the driven pulley, the pulley shafts, the steel belt, and pulley related parts for wear and damage. If there are worn or damaged, replace the transmission housing assembly.
Check the transmission fluid feed pipe for wear, damage, and out of round.
Inspect the reverse brake piston and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the brake end-plate and the top disc. If the clearance is out of tolerance, inspect the brake discs and plates for wear and damage. If the discs and plates are worn or damaged, replace them as a set. If they are OK, adjust the clearance with the brake end-plate.
Check the transmission fluid pump assembly for wear and damage. If the transmission fluid pump assembly is worn or damaged, replace it as an assembly.
Check the transmission fluid pump drive chain and the transmission fluid pump drive/driven sprocket for wear and damage.
Check the valve body assembly for wear and damage.
Check the stator shaft for wear and damage.
Inspect the solenoid wire harness for open and short.