FYI, the monovalve is present on the NEWER cars... 1981-up, I think? I believe it's even there on the 124's but has a less obvious failure mode (not positive though.) The OLDER cars (1980 and older?) have the funky Chrysler-built servo heater box that costs a fortune to replace when it fails, these have vertical pushbutton units and NO monovalves.


Regards,

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Dave
Boise, ID
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TX hats off to ya,

Great repair info on that link.

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