BACK TO BASICS
Q: The “Temperature Gauge” question in your column from the June issue of HMM is a familiar problem. My car is a 1966 Chevy SS with factory gauges. According to the gauge, it ran cold all the time after replacing the sending units, checking proper function of the gauge, and making other wire checks. I was running a non-clutch fan with a 160-degree thermostat. I then decided to take out the thermostat and replace it with a unit rated for 180 degrees. Upon removing the thermostat, I found that it had separated. I replaced it and then all the problems went away — the car runs well now and the factory gauge reads near the middle of the scale, which is expected. I do not know if this will help the reader with the 1967 Corvette problem or not.
Wayne Roache
Via email
A: The issue you had is not specific to Chevys, but it is the foundation for a lesson to other readers. When diagnosing any problem, I used
