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Exhaust System Check - Parked (Saturn)

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, 2002 Saturn SC2, and 2002 Saturn SC1. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove oxygen sensor.
  2. Insert Exhaust Back Pressure Adapter (SA9306E) into exhaust manifold. The thread designation is M18 x 1.50.
  3. Connect Gauge Bar Set (SA9127E), 0-60 in. H2O (0-15 kPa) gauge to back pressure adapter.
  4. With engine at normal operating temperature, observe exhaust back pressure at 4000 RPM.
  5. The exhaust back pressure must be less than 20.13 in. H2O (5.0 kPa).
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