Left Exhaust Manifold
LEFT EXHAUST MANIFOLDREMOVAL
1. Disconnect and isolate the negative battery cable.
2. Raise and support the vehicle.
3. Separate the front exhaust pipe to manifold union (2).
4. Lower the vehicle.
5. Disconnect and remove the oxygen sensor from the exhaust manifold (7)
6. Remove the exhaust manifold shield (5) retaining bolts, exhaust manifold (7), and discard gasket (1).
INSPECTION
1. Inspect exhaust manifolds for damage or cracks.
2. Check manifold flatness.
3. Inspect the exhaust manifold gasket for obvious discoloration or distortion.
4. Check distortion of the cylinder head mounting surface with a straightedge and thickness gauge.
INSTALLATION
NOTE: If replacing the exhaust manifold, tighten the exhaust outlet studs to manifold to 40 Nm (350 inch lbs.).
1. Position the exhaust manifold (7) and gasket (1). Install the retaining bolts (2). Tighten 4 bolts starting at the center working outward to 23 Nm (200 inch lbs.).
2. Install the exhaust manifold heat shields (5,6). Tighten the bolts to 12 Nm (105 inch lbs.).
3. Tighten the out most stud nuts to 8 Nm (73 inch lbs.).
4. Connect the oxygen sensor.
5. Raise and support the vehicle.
6. Connect the exhaust pipe to manifold union (3). Tighten the exhaust stud nuts to 34 Nm (300 inch lbs.).
7. Connect the negative battery cable.