1994 Toyota Corolla Q&A
1994 Toyota Corolla Question: why doesn't my car shift into overdrive when cold?
It's not supposed to go into overdrive until the engine reaches a certain temp. to improve emissions controls. Is it taking longer for the engine to warm up? Maybe thermostat is opening to soon or is stuck partially open. If it concerns you , get it checked and verified before randomly spending money on parts. - ziptie12