[38dean]

I have a 1990 Camry, approx. 133k miles. The temperature gauge is slow to heat up and the overdrive will not kick in until the temperature gauge is past a certain point.

Not sure if I need to change the thermostat, already purchased one from Toyota, or look for another solution.

Thanks,

38dean

 

[RedRaven]

Your Overdrive is fine. The Camry is designed to kick into overdrive once the engine reaches a certain temperature. As far as your thermostat, My camry takes about 10 minutes of running before the temperature hand will even show the slightest sign of movement and I just recently replaced mine.

 

[88 LE]

overdrive will not kick in until the temperature gauge is past a certain point.

Thats normal.

Theres a O/D water temp switch that screws into the thermostat housing.

The purpose of this switch is to enable o/d when the water temp is high enough. Or disable o/d when the water temp is to cold (engine not up to operating temp).