For 1990-2009 cars

1. Install the studs into the left cylinder head.
2. Install a NEW left exhaust manifold gasket.
3. Install the left exhaust manifold.
4. Loosely install the left exhaust manifold upper bolts into the left cylinder head.

Notice: Refer to Fastener Notice in the Preface section.

5. Loosely install the left exhaust manifold lower bolts into the left cylinder head.
6. Tighten the left exhaust manifold bolts.

Tighten
Tighten the left exhaust manifold bolts to 25 N·m (18 lb ft).

7. Install the engine coolant temperature (ECT) sensor.

Tighten
Tighten the ECT sensor to 22 N·m (16 lb ft).

8. Place the left exhaust manifold heat shield in position.
9. Install the exhaust manifold heat shield bolts.

Tighten
Tighten the exhaust manifold heat shield bolts to 10 N·m (89 lb in).