Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G3500, VAN CARGO, 4.8 VREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE CONTROL SYSTEM - 6.6L (LLY) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSENGINE COOLANT TEMPERATURE (ECT) SENSOR REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 V
Removal Procedure
2006 Chevrolet Chevy Express G3500, Van Cargo, 4.8 VSECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
NOTE:
Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.
- Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
- Remove the brace from the intake air heater-to-generator bracket.
- Drain the coolant to a level below the engine coolant temperature (ECT) sensor. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (Vac N Fill) .
- Disconnect the ECT sensor electrical connector.
- Remove the ECT sensor (1).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.