|
Vacuum
Diagram Definitions |
| Abbreviation |
Description |
| A/CL |
Located in the air
cleaner |
| A/CL DV |
Air Cleaner Diverter
Valve |
| A/CL BI MET |
Air Cleaner Bi-Metallic
Valve |
| A/CL CWM |
Air Cleaner Cold Weather
Modulator |
| ACT |
Air Charge Temperature
Sensor, prior to 1992 |
| ACTS |
Air Cleaner Temperature
Sensor |
| ACV |
Air Control Valve |
| AIR |
Thermactor, short for
Thermal Reactor. CA vehicles are installed with it as standard.
Air Injection Reaction is what it stands for. |
| AIR BPV |
AIR Bypass (AIRB) Valve;
also called the TAB (Thermactor Air Bypass) Valve |
| BV |
Bowl Vent (on top of the
float tanks) |
| CARB |
Carburetor |
| CBD |
Closed Bowl Distributor |
| CPRV |
Canister Purge Valve |
| DIST |
Distributor |
| DPFE |
Differential Pressure
Feedback |
| DV-TW |
Two Way Delay Valve |
| EFCA |
Electronic Fuel Control
Assembly/ (Fuel Pressure Regulator (FPR) |
| EGR |
Exhaust Gas
Recirculation |
| EGRC/EGRV |
EGR Vent/EGR Control |
| EXH HCV |
Exhaust Heat Control
Valve |
| EVP |
EGR Valve Position |
| EGR |
Valve Position |
| EVR |
EGR Vacuum Regulator;
also called EGR Vacuum Solenoid |
| FLTR |
Filter |
| FPR |
Fuel Pressure Regulator
(check vacuum line) |
| HEAT VLV INT |
Heat Vacuum Control
Valve Intake, (next to carb) |
| HICV |
Hot Idle Control Valve |
| IAT |
Intake Air Temperature
Sensor (Air Charge Temperature (ACT), prior to 1992 |
| IVV |
Thermactor Idle Vacuum
Valve |
| LCV |
EGR Load Control |
| MAN VAC |
Manifold vacuum-Vacuum
source; usually ref. to as Vacuum Tree atop intake manifold |
| MAP |
Manifold Absolute
Pressure |
| PCV |
Positive Crankcase
Ventilation |
| PURGE |
Vapor Canister Purge
Valve |
| PV |
Ported Vacuum |
| PVS |
Ported Vacuum Switch (PVS)
Valve |
| S |
Spark port |
| SA-FV |
Separator Assembly
Fuel/Vacuum |
| SOLV |
Thermactor Solenoid
Valve |
| SV CBV |
Carborator Fuel Bowl
Solenoid Vent Valve |
| TCAC |
Thermostatically
Controlled Air Cleaner |
| TCP |
Temperature Compensated
Accelerator Pump |
| TK |
Throttle Kicker |
| TVS |
Throttle Valve Solenoid
(aka Solepot, Dashpot) OR Temperature Vacuum Switch |
| TVV |
Thermal Vacuum Valve OR
Thermostatic Vacuum Valve (aka Ported Vacuum Switches; Thermal
Vacuum Valve) |
| VAC |
Vacuum |
| VCKV |
Vacuum Check Valve |
| VCV |
Vacuum Control Valve |
| VDV |
Vacuum Delay Valve |
| V CK V or VCV |
Vacuum Check Valve |
| VOTM |
Vacuum Operated Throttle
Modulator |
| VRDV |
Distributor Vacuum Delay
Valve (VDV, VRDV, DV-TW) |
| VRDV |
Vacuum Delay Valve (VDV,
VRDV, DV-TW) |
| VRESER |
Vacuum Reservoir (coffee
can style in earlier years; replaced by plastic style) |
| VRESV REST |
on earlier years such as
SEABRONC's 83 is a Vacuum Restictor/delay valve, it delays vacuum
for a certain amount of time |
| VRV |
Vacuum Regulator Valve |
| WOT |
Wide Open Throttle Valve |
