Gran Fury L6-225 3.7L VIN J 1-bbl (1983)
Thermostatic Air Cleaner: Description and Operation
The dual snorkel air cleaner performs basically like a single snorkel air cleaner except that on deep throttle acceleration, both snorkels are open (when
manifold vacuum drops between 5 inch Hg).
The ``non-heat'' air snorkel is connected to manifold vacuum through a tee in the vacuum hose between the carburetor and the sensor.
Check the second snorkel vacuum diaphragm as one with the heat connector.