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Home >> Jeep >> 1990 >> Cherokee Laredo, 2D Utility, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 4.0L 6-CYL - VIN [L] & 4.2L 6-CYL - VIN [T] >> Removal & Installation >> Intake & Exhaust Manifold >> Removal (4.0L)

Removal (4.0L)

  1. Disconnect negative battery cable. Drain cooling system. Remove air inlet from throttle plate assembly. Disconnect throttle, cruise control and throttle valve (A/T models) cables (if equipped).
  2. Disconnect and mark all vacuum and electrical connectors from intake manifold. Release fuel system pressure. See FUEL PRESSURE RELEASE (4.0L) in this article. Disconnect fuel lines at fuel rail. Fuel lines are removed by squeezing 2 retaining tabs against fuel line and pulling fuel line from connector.
  3. Remove power steering pump and bracket from intake manifold. Wire power steering pump out of work area. DO NOT drain power steering fluid. Remove fuel rail retaining bolts. Remove fuel rail and injector assembly.
  4. Remove intake manifold heat shield. Disconnect EGR tube fittings. Disconnect exhaust pipe from manifold. Remove oxygen sensor. Remove retaining bolts and remove manifolds. Remove EGR tube and separate intake and exhaust manifolds.
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