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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 >> DTC P2457: Exhaust Gas Recirculation (EGR) Cooler Low Efficiency >> Repair Instructions

Repair Instructions

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

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Exhaust Gas Recirculation Cooler Housing Replacement

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