Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1002 (HVAC CONTROL SYSTEM - GENERAL INFORMATION & DIAGNOSTICS)DIAGNOSIS AND TESTINGCLIMATE CONTROL SYSTEMVACUUM SCHEMATIC - ELECTRONIC AUTOMATIC TEMPERATURE CONTROLVACUUM APPLICATIONS CHART - ELECTRONIC AUTOMATIC TEMPERATURE CONTROL
2004 Ford Econoline E150, Van Cargo, 4.6 W
Vacuum Applications Chart - Electronic Automatic Temperature Control
2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Vacuum Applications Chart - Electronic Automatic Temperature Control
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
VACUUM APPLICATIONS CHART - ELECTRONIC AUTOMATIC TEMPERATURE CONTROL
| Switch Port | Vacuum Harness Hose Color | Function | Manual Override Selector Buttons | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OFF | MAX A/C | NORM A/C | VENT | FLOOR | FLOOR/DEF | DEF | |||
| 1 | White | Air inlet | V | V | NV | NV | NV | NV | NV |
| 2 | Yellow | Floor/panel (partial) | V | V | V | V | V | V | NV |
| 3 | Red | Full floor | V | V | V | V | V | NV | NV |
| 4 | Blue | Panel | NV | V | V | V | NV | NV | NV |
| 5 | Black | Source | V | V | V | V | V | V | V |
| V = Vacuum | |||||||||
| NV = No Vacuum | |||||||||
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.