gone thru 2 units. cant get temp.on gauge to climb above cold,gauges all working.anyone know the proper part number for the temperature sending unit? 67 427 p.s. wiring checked out as well this morning thanks 427
You need a real 1513321 GM only unit. We have a proper repro that has the specific resistance at American Autowire. If it still doesn't work with out sending unit, the resistor on the back of the gauge may be bad. Donny