Duo valve, heater core temp sensor (they have 2), evap temp sensor or a outside shot at a acc panel. Find someone who can get into the system to read the sensor outputs. Otherwise your shooting in the dark.



Joe

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Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364