Engine Mechanical System

Exhaust Manifold

10steps
~60min
3/5difficulty
Done 0 of 10

Components and Component Location

Components

1. Heat Protector
2. Exhaust Manifold Gasket
3. Exhaust Manifold
4. Exhaust Manifold Bracket

Repair Procedures

Removal and Installation

  1. Remove the engine cover.

    (See Engine and Transaxle Assembly - Engine Cover)

  2. Disconnect the negative battery cable.

  3. Disconnect the front heated oxygen sensor connector (A) and remove the sensor from the bracket.

  4. Remove the engine room cover.

    (See Engine and Transaxle Assembly - Engine Compartment Cover)

  5. Remove the front muffler.

    (See Intake and Exhaust System - Muffler)

  6. Remove the exhaust manifold heat shield (A).

    Tightening torque: 9.8–11.8 N·m (1.0–1.2 kgf·m, 7.2–8.7 ft-lbf)

  7. Remove the exhaust manifold support (A).

    Tightening torque: 39.2–49.0 N·m (4.0–5.0 kgf·m, 28.9–36.2 ft-lbf)

  8. Remove the exhaust manifold (A).

    Tightening torque: 29.4–34.3 N·m (3.0–3.5 kgf·m, 21.7–25.3 lbf·ft)

  9. Remove the exhaust manifold gasket (A).

  10. Install in the reverse order of removal.

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.