Remove the two screws that hold the MAF on the intake near the air filter, go to an auto parts store or electronic supply place and get a can of spray electronic cleaner, spray the inside of the air flow sensor, you need to get it into the small opening where the platinum sensor wires are, they get coated with dust and other gunk and confuse the computer because it gets the wrong signals,clean the wires until the look shiny, reinstall it
SAJ
Transmission is not shifting when car is warmed up.
There are 3 shift solenoids one on the outside of the transmission in the front, and two on the inside of the transmission
The transmission may not shift or engage in forward or reverse until the car warmed up for a few reasons. Two examples of why the transmission will not engage is low or no fluid levels or a leak.
Low transmission fluid, transmission on it's way out.
The main problem with any vehicle that will not shift out of gear deals with the transmission. This is a problem where the transmission may need to be replaced to fix it.
You need to replace the speed sensor. It sends a signal to the speedometer and also sends a signal to the transmission on when it should shift.
Are you sure that it's third it's not shifting into, and not fourth? The transmission is designed to not permit shifts into fourth (overdrive) until the engine and transmission have warmed up a bit.
I need to repair the gear shift cable in side a 2000 toyota corolla. How do you get in side the gear shift box to repair the cable end?
Could be as simple as being in need of a tune up.
there is no fuse that makes the transmission shift the transmission shifts on cylinoids and rpms
unscrew the knob
I doubt it is a transmission problem. It sounds like the engine is in need of some attention maybe even some motor mounts.