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.
1986 Ford Aerostar V6-183 3.0LFACTORY OEM SERVICE PROCEDURE
Cruise Control: Adjustments
ACTUATOR CABLE, ADJUST
1. Remove cable retaining clip, then disengage throttle positioner.
2. Set throttle to hot idle position.
3. Pull on actuator cable to take up all slack, then while holding cable in this position, reinstall cable retaining clip.
Fig. 25 Vacuum Dump Valve Adjustment:
VACUUM DUMP VALVE, ADJUST
1. Depress brake pedal, then push inward on dump valve until valve collar bottoms against retaining clip.
2. Pull brake pedal rearward to its normal position and allow dump valve to ratchet backwards in retaining clip.
3. With pedal in this position, clearance between black housing on dump valve and white plastic pad on brake pedal should be .050---.100 inch as shown, Fig. 12.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.