Wagoneer L6-258 4.2L VIN C 2-bbl (1982)
Air Diverter Valve: Description and Operation
Diverter Or Air By-pass Valve
The diverter or air by-pass valve, when triggered by a sharp increase in manifold vacuum, shuts off the injected air to the exhaust port areas and
prevents backfiring during this richer period. On engine overrun, the total air supply is dumped through the muffler or the diverter or air by-pass
valve.
At high engine speeds the excess air is dumped through the pressure relief valve when the pressure relief valve is part of the air pump, and through
the diverter or air by-pass valve when the pressure relief valve is part of the diverter or air by-pass valve.
