I checked the temp of the coolant with an infrared thermometer and my gauge is off. I realise that testing this way the temp reading I get from the thermostat housing would be less than the actual coolant temp but I was getting a little over 20 degrees hotter coolant temp than the reading on my infrared..anyone know what reading I should see on the sender in relation to the temp of the coolant? I'd like to find out if it's gauge or the sender that's the problem
