The automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.Google+
Car Problem Reports
Toyota Celica Automatic Transmission May Not Shift Correctly at High Mileages
Toyota Celica Problem
Drive Trains Affected: Automatic Transmission, Manual Transmission
Average Mileage: 137,656 mi (11,000 mi - 187,000 mi)
Visitor, 2001 Toyota Celica, Automatic Transmission, 165,000 mi
Same problem as reported by others. When attempting to accelerate the car will be slow to respond and then downshift hard with rpms surging. Problem is worse with cruise control and cruise calls for acceleration.
Visitor, 2002 Toyota Celica, Automatic Transmission, 148,000 mi
Transmission will not shift correctly. Sometimes will not shift into reverse, drive, 2, and low. It is as if i am in neutral, the RPM's are moving but the car isn't. I have not fixed this issue as of this report.
Visitor, 2003 Toyota Celica, Automatic Transmission, 64,000 mi
Doesn't want to go into 4th gear when accelerate it goes into 4th eventually but takes minuet,
no answer as of yet.
Visitor, 2000 Toyota Celica, Automatic Transmission
Car will start put it in drive or reverse acts like its in neutral will not go at all
Slamming shift on takeoff, then at 7000rpm spuuters, won't shift until you release accelerator slightly. If car is allowed to warm to 1/2 of temp gauge shifting is much better. Erratic shifting.
Visitor, 2002 Toyota Celica, Automatic Transmission, 11,000 mi
SLAMMING TRANSMISSION ON TAKEOFF. HARD SHIFTING, GETS A LITTLE BETTER ONCE THE CAR IS WARMED UP 1/2 ON TEMP GAUGE, BUT DEFINATELY STILL SOMETHING WRONG.
doesnt shift into gear right away after you stop, then slams into gear and jerks forward
Visitor, 1996 Toyota Celica, Automatic Transmission, 165,000 mi
Car jerks into reverse, doesn't seem to catch gears and revs super hard though not accelerating
Visitor, 2000 Toyota Celica, Automatic Transmission, 187,000 mi
I made a stop and as i accelerated the car stopped amd slammed forward. Would not move in d,r, or 2 gear. Made it home in 1st. When in those gears the rpms will move but the car doesn't. I am having the transmission rebuilt. Other than switching gears more slowly or not as smooth the car seemed fine up until yhis happened.
Visitor, 2001 Toyota Celica, Automatic Transmission, 175,000 mi
Hard shifting and misses gears.