checked the actual temperature when the engine was at regular operating temperature with his computer and it indicated the actual temp was 185 degrees while the gauge indicates 110 degrees. I grounded out the temp gauge to verify that the gauge itself was okay and it checks out fine. I replaced both sensors, one near the thermostat and the other next to #1 cylinder and the problem still exists. The Chevy service manual says that once the sensors
have been replaced and the problem still exists, there may be resistance in the circuit due to corrosion or a loose connection. It then says to "Clean and tighten the terminals and connections in the circuit and check for resistance in the ground path of the sensor." How do I locate these terminals and connections and check the resistance?