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 MANUALSFORD1991AEROSTAR VAN CARGO EXTENDED, 4.0 X, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEREMOVE, OVERHAUL & INSTALLENGINE CONTROLS - REMOVE/INSTALL/OVERHAULTHROTTLE POSITION SENSOR (TPS)NOTES
1991 Ford Aerostar Van Cargo Extended, 4.0 X, AWD
Throttle Position Sensor (TPS): Notes
1991 Ford Aerostar Van Cargo Extended, 4.0 X, AWDSECTION Notes
NOTE:
On 7.3L engines, a Fuel Injection Pump Lever (FIPL) sensor is used instead of a TPS. For FIPL service procedures, see ON-VEHICLE ADJUSTMENTS article.
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.