Review on ACDelco 213 963 Original Equipment Temperature by Doug Nelson

Didn't fix my temp sensor, GM seems to have some known problems with stepper motors that are behind the sensors, my oil level sensor didn't work either, I replaced the sensor like and few months ago so i spent time and money on 2 sensors. I had to pull out the instrument cluster and replace 2 stepper motors, now they work great! Be aware that replacing a stepper motor is not easy, it will help if you have experience soldering circuit boards.