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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P205B - P2BAA) And Symptoms) >> Diagnostic Information And Procedures >> Charge Air Cooler Diagnosis (Leak Test) >> EN 46091-1 Pressure Regulator Adjustment

EN 46091-1 Pressure Regulator Adjustment

WARNING: This page is about a different variant/trim than selected.
NOTE:

Some EN-46091-1 regulators may have the adjusting knob riveted in place. The rivet head must be drilled out with a 5/16 inch drill bit before adjustment. Do not drill more than 1/8 inch in depth, or just enough to remove the rivet head. The rivet shaft does not have to be removed from the regulator.

  1. Connect the EN-47603  to the EN-46091-1  gauge set outlet and connect shop air to the EN-47603  .
  2. Open the shutoff valve, then slowly adjust the regulator on the EN-46091-1  until the gauge reads 55 kPa (8 psi).
  3. Close the air supply valve and remove the EN-47603  from the gauge assembly.
  4. The gauge set is now calibrated to perform the test.
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