Expansion tank cap

does200Member

Sorry for all the coolant related questions, but just one more... On my 1972 Pantera, my expansion tank cap does not have a thermostat in the cap, yet the pressure tank has one (looks like someone may have accidently either broken it off or sawed it off from the expansion tank cap). However, on my 1973 Pantera, there is a thermostat in the cap of both tanks. Is a thermostat cap really needed in both tanks? (I have not had overheating problems or loss of water with either setup). Sorry, Santa didn't bring me a service manual this year.

12/29/028:49 PM

Original Post

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