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Home >> Chevrolet >> 2009 >> Chevy Express G2500, Van Cargo Extended, 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L LMM - Introduction >> Repair Instructions >> Exhaust Pressure Differential Sensor Pipe Replacement >> Removal Procedure

Removal Procedure

CAUTION: The exhaust temperature sensor and exhaust pressure differential sensor line fittings may be difficult to remove when the engine exhaust system temperature is below 48°C (120°F). Excessive force may damage the threads in the exhaust manifold or exhaust pipe.
    Fig 1: View Of Exhaust Differential Pressure Sensor Bracket Bolts
    GM1862638Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Reposition the exhaust differential pressure sensor pipe assembly hose clamps (3).
  3. Remove the exhaust differential pressure sensor pipe assembly hoses from the sensor.
  4. Remove the exhaust differential pressure sensor pipe assembly fittings (2).
  5. Remove the exhaust differential pressure sensor bracket bolts (1).
    6. Fig 2: Identifying Exhaust Differential Pressure Sensor Pipe Assembly
    GM1862639Courtesy of GENERAL MOTORS CORP.
  6. Remove the exhaust differential pressure sensor pipe assembly.
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