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
Intake Manifold
This article has been updated by technical service bulletin (TSB) 94-10-10 dated 05/18/94.
Lower Intake Manifold
Tighten in two steps in numerical sequence to the following specifications:
Step 1 18 Nm (13 ft. lbs.)
Step 2 22 Nm (16 ft. lbs.)
Upper Intake Manifold
Tighten in sequence in three (3) steps starting with the four center bolts to the following specifications: Step 1 10 N-m (8 ft. lbs.), Step 2 20 N-m (15 ft. lbs.), Step 3 32 N-m (24 ft. lbs.)
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.