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.
1990 Ford Taurus V6-232 3.8LFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor
IDLE SPEED
Automatic Transmission 650-750 RPM
Manual Transmission 620-720 RPM
TORQUE VALUES
Air Bypass Valve to Throttle Body 87 lb. in. (10 N-m)
Air Supply Tube Clamps 19 lb. in. (2.2 N-m)
Alternator Brace to Alternator 37 lb. ft. (51 N-m)
Alternator Brace to Water Pump and Upper Manifold 19 lb. ft. (25 N-m)
EGR Tube to EGR Valve and Exhaust Manifold 30 lb. ft. (41 N-m)
EGR Valve to Upper Manifold 19 lb. ft. (25 N-m)
Fuel Pressure Regulator to Fuel Rail Assembly 34 lb. in. (4 N-m)
Fuel Rail Assembly to Intake Manifold 87 lb. in. (10 N-m)
Lower Intake Manifold to Head 23 lb. ft (32 N-m)
Manifold Support Bracket 19 lb. ft. (25 N-m)
Throttle Body to Upper Intake Manifold 19 lb. ft. (25 N-m)
Throttle Cable Bracket to Manifold 13 lb. ft. (17 N-m)
Throttle Position Sensor to Throttle Body 14 lb. in. (1.5 N-m)
Upper Intake Manifold to Lower Intake Manifold Bolts 24 lb. ft (32 N-m)
Automatic Transmission 650-750 RPM
Manual Transmission 620-720 RPM
TORQUE VALUES
Air Bypass Valve to Throttle Body 87 lb. in. (10 N-m)
Air Supply Tube Clamps 19 lb. in. (2.2 N-m)
Alternator Brace to Alternator 37 lb. ft. (51 N-m)
Alternator Brace to Water Pump and Upper Manifold 19 lb. ft. (25 N-m)
EGR Tube to EGR Valve and Exhaust Manifold 30 lb. ft. (41 N-m)
EGR Valve to Upper Manifold 19 lb. ft. (25 N-m)
Fuel Pressure Regulator to Fuel Rail Assembly 34 lb. in. (4 N-m)
Fuel Rail Assembly to Intake Manifold 87 lb. in. (10 N-m)
Lower Intake Manifold to Head 23 lb. ft (32 N-m)
Manifold Support Bracket 19 lb. ft. (25 N-m)
Throttle Body to Upper Intake Manifold 19 lb. ft. (25 N-m)
Throttle Cable Bracket to Manifold 13 lb. ft. (17 N-m)
Throttle Position Sensor to Throttle Body 14 lb. in. (1.5 N-m)
Upper Intake Manifold to Lower Intake Manifold Bolts 24 lb. ft (32 N-m)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.