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.
Mode, Outside Air & Temp Control Cables (Bronco II & Ranger)
1988 Ford Bronco 4.9 Y, AutomaticSECTION Mode, Outside Air & Temp Control Cables (Bronco II & Ranger)
- Disengage glove box by squeezing sides together to disengage tabs and let box hang free. Working through glove box opening, remove cable housing from metal clip on top of plenum by depressing clip tab and pulling cable up.
- Cable core wire end loop should remain attached to control cam on plenum. To adjust temperature control cable, move control lever to "COOL" position and hold.
- Push cable housing (Blue) to seat blend door (push until you feel resistance). Install cable housing to clip by pushing it from top until it snaps into place.
- To adjust mode control cable, move control lever to "DEFROST" position and hold. Pull on cam jacket until cam travel stops. Reinstall cable housing to clip by pushing it from top until it snaps into place.
- To adjust outside air cable, move outside air control lever to "OFF" position and hold. Set door arm (White) in down position (door closed to shut off air flow).
- With cable end attached to door arm, reinstall cable to clip. Turn blower switch to "HI" position and check for proper operation. Install glove box.
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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.