Underneath air filter container. I had to remove two screws inside the air filter compartment and whose straps that holds it together. Is connected with Evap canister purge solenoid. Advance auto parts or Auto Zone has it.
Means flow when purge not commanded. Bad or stuck purge valve Broken damaged or leaking vapor control system Bad purge control solenoid.
This code indicates an incorrect Evaporative System Purge Control Valve flow. Can be caused by clogged, disconnected, or broken vacuum line between the EVAP Canister Purge Valve and intake manifold or bad Purge Valve itself.
Low purge flow- faultu evap valve or canister.
P0496 = EVAP Emission High Purge Flow Fault -could be a sticky purge valve
My book shows it to mean: Evaporative purge flow sensor fault.
next to the evap can on the right side of the car behind the front bumper you will also see the vacuum switch in line with it. as the flow moves it will be the purge valve then the vacuum switch.
The purge flow is a term used in the evaporation system....or the emmisions system. There is a puge valve that is solenoid controlled. The vapors purge into the intake while the car is running. if you get this code and your gas cap is tight. something is amiss with the fuel system tightness.
What does the word purge mean
The above is copied and pasted from "The Thunderbird And Cougar Owners Club of America" "Straight from the service CD (mostly, I added a descriptor after the code) P1443=A problem with the EVAP purge flow system Continuous Memory Diagnostic Trouble Code (DTC) P1443 indicates an incorrect evaporative system purge control valve flow. Possible causes: -- Obstructed, open or cracked hoses between EVAP canister purge valve and intake manifold. -- Damaged EVAP canister purge valve. -- Damaged PF sensor."
Purge flow incorrect. The computer has told the purge valve to open and saw to much change or no change in how the engine ran. This means that the electrical components are hooked up but a vacume line is unhooked or plugged. The evap system is damaged so the the purge valve does not have anything to do. Rusted out or damaged lines under the car can cause this.
Look near or behind the alternator. The valve that controls flow of coolant to the heater core on my 1987 Aerostar is located on the left wall of the engine compartment. I imagine the 1991 is similar. Trace the heater hoses from the engine/water pump and you will find it.
The 1995 Aerostar control for the heat uses cables to move the control valves. Start by checking to see that the temperature sliding control is moving properly, and the cable is adjusting the valve for the coolant flow.