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 MANUALSFORD1991LTD WAGON V8-302 5.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSSPECIFICATIONSMECHANICAL SPECIFICATIONS
1991 Ford LTD Wagon V8-302 5.0L
Mechanical Specifications
1991 Ford LTD Wagon V8-302 5.0LSECTION Mechanical Specifications
IDLE SPEED
Automatic Transmission (DRIVE) 590 RPM +/- 60 RPM
BELT TENSION
Automatic Tension (Reference only) 100-130 lb (445-578 N)
TORQUE VALUES
Air Tube to Exhaust Manifold Nut 16-24 lb-ft (22-32 Nm)
Catalytic Converter Flange Bolts 20-30 lb-ft (27-40 Nm)
Catalytic Converter Heat Shield Screws 50-70 lb-in (5.6-7.9 Nm)
Charcoal Canister Retaining Bolts 4-6 lb-ft (4-6 Nm)
Canister Mounting Bracket Bolts 6-9 lb-ft (8-12 Nm)
EGR Valve to Intake Manifold Bolts 12-18 lb-ft (16-24 Nm)
Manifold Vacuum Fittings (Teflon) 6-10 lb-ft (8-14 Nm)
Thermactor Pump Adjustment Arm 22-32 lb-ft (30-43 Nm)
Thermactor Pump Bracket Bolt 30-45 lb-ft (41-61 Nm)
Thermactor Pump Pivot Ball 22-32 lb-ft (30-43 Nm)
Thermactor Pump Pulley Bolt 130-180 lb-in (15-20 Nm)
Throttle Body Air Bypass Valve 6-9 lb-ft (8-11 Nm)
Automatic Transmission (DRIVE) 590 RPM +/- 60 RPM
BELT TENSION
Automatic Tension (Reference only) 100-130 lb (445-578 N)
TORQUE VALUES
Air Tube to Exhaust Manifold Nut 16-24 lb-ft (22-32 Nm)
Catalytic Converter Flange Bolts 20-30 lb-ft (27-40 Nm)
Catalytic Converter Heat Shield Screws 50-70 lb-in (5.6-7.9 Nm)
Charcoal Canister Retaining Bolts 4-6 lb-ft (4-6 Nm)
Canister Mounting Bracket Bolts 6-9 lb-ft (8-12 Nm)
EGR Valve to Intake Manifold Bolts 12-18 lb-ft (16-24 Nm)
Manifold Vacuum Fittings (Teflon) 6-10 lb-ft (8-14 Nm)
Thermactor Pump Adjustment Arm 22-32 lb-ft (30-43 Nm)
Thermactor Pump Bracket Bolt 30-45 lb-ft (41-61 Nm)
Thermactor Pump Pivot Ball 22-32 lb-ft (30-43 Nm)
Thermactor Pump Pulley Bolt 130-180 lb-in (15-20 Nm)
Throttle Body Air Bypass Valve 6-9 lb-ft (8-11 Nm)
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.