Coolant Temp Needle way off (Page 2/2) olejoedad MAR 19, 12:30 PM quote Originally posted by Vintage-Nut: FYI - One method is this link - Coolant Temperature Gauge Information and Fix/Repair.... https://www.fierofocus.com/...osails/tempgage.html I don't prefer the fix you posted because it changes the OEM wiring in the engine bay at the temp sender and also in the interior. If the car is ever resold, troubleshooting could be an issue. I prefer to do the wiring change only in the interior, by attaching the HOT lamp wire to the G2 terminal and removing the GAGE wire from the G2 terminal. It's easier and less complicated, especially if the car is sold and the change to the wiring in the engine bay isn't noted.