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 MANUALSFORD1987AEROSTAR VAN WINDOW, 2.3 A, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSA/C-HEATER SYSTEM - MANUALREGISTER DUCTS OPERATIONAUXILIARY SYSTEM
1987 Ford Aerostar Van Window, 2.3 A, Automatic
Auxiliary System
1987 Ford Aerostar Van Window, 2.3 A, AutomaticSECTION Auxiliary System
The auxiliary system is mounted to the side wall just behind the driver. The register duct assembly extends from the C-pillar to the B-pillar. The duct ascends the B-pillar and traverses the roof between the two roof bows. See Fig 2.
RENDER: 1.0x
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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.