yo,
also, see the Vehicle Emission Control Information (VECI) Decal;
Contains Vacuum Diagram & Calibration Parts List for 88 & UP.
On-Line for Free at Ford.
Click "Quick Guides" in left panel;
Scroll to & CLICK VECI Labels "Provides Vehicle Emission Control Information (VECI) and a related calibration parts list."
Enter applicable info (
need to know your Calibration number from your B-pillar sticker).
Vacuum Diagram is the same as the one on the core support or hood or air filter cover.
Suggest Right Clicking this Hot Link & Open in New Window
Source: by Ford @ motorcraftservice.com
As an Example, one diagram for CAL # 8-64E-R00
http://www.motorcraftservice.com/pubs/auxf/~WC/USENIE/1858/E8AEAGA.gif
Vacuum Line Acronyms & Color Codes;
EMISSION: Red = Main vacuum;
Green = EGR function;
Orange = Heat control Valve (exhaust & intake) (AKA heat riser but more complex);
Yellow = from the TAD Solenoid (driver's side Forward Solenoid) to the TAD (Diverter) Valve located at the rear of the Intake Manifold (Distributor Advance in Carbureted Engines);
White = EGR vacuum (source);
Black = Mainly used for the Evaporative emissions control;
Black = Thermactor ACV or Diverter valve;
Blue = Throttle Kicker control;
Pink = from the TAB Solenoid (driver's side rear solenoid) to the bottom of the Thermactor Air Bypass Valve (TAB or BPV/AIR Bypass (AIRB) valve);
ACV (Air Control Valve) is the TAD (Thermactor Air Diverter) Valve (AIR Bypass (AIRB) and AIR Diverter (AIRD) valve combinations);
MAN VAC is Manifold Vacuum;
FPR is Fuel Pressure Regulator;
EGR is Exhaust Gas Re-circulation Valve
SOL V: Thermactor Air Diverter (TAD) Solenoid (SOL V) (AIRD) & Thermactor Air Bypass (TAB) Solenoid;
EVR is EGR Vacuum Regulator;
VRESER is the Vacuum Reservoir Can (Tank);
V REST on later years is Vapor Valve (Roll-Over @ Gas tank);
V REST on earlier years such as 78/79 & SEABRONC's 83 is a Vacuum Restictor/Delay Valve, it restricts vacuum for a certain amount of time, on most engines a vacuum line from the carburetor base runs to a T & then to V REST to the distributor;
Carbon Can is Carbon Canister (Charcoal Canister, Vapor Canister, Evaporative Emission (EVAP) Canister);
MAP is Manifold Absolute Pressure Sensor;
AIR BPV is the AIR Bypass (AIRB) Valve, also called the TAB (Thermactor Air Bypass) Valve;
CPRV is Canister Purge Solenoid Valve/ Canister Purge Solenoid (CANP);
VCKV is Vacuum Check Valve;
CAT is catalytic converter;
ENG is engine;
PCV is Positive Crankcase Ventilation Valve
by Steve83 (Steve, That dirty old truck), Seabronc (Rosie, Fred W), Seattle FSB & miesk5