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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1041 (ENGINE CONTROLS AND FUEL - 6.6L (LMM) - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSENGINE COOLANT TEMPERATURE SENSOR REPLACEMENTINSTALLATION PROCEDURE

2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

Fig 1: View Of ECT Sensors

Courtesy of GENERAL MOTORS CORP.

If installing the old sensor(s), coat the threads with sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent.

NOTE: Refer to Fastener Notice .

Install the appropriate ECT sensor (1).
Tighten: Tighten the sensor to 20 N.m (15 lb ft).

Fig 2: View Of Engine Wiring Harness Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the engine wiring harness electrical connector (1) to the appropriate ECT sensor.
Install the generator. Refer to Generator Replacement (4.3L) or Generator Replacement (4.8L, 5.3L, 6.0L, and 6.2L) or Generator Replacement (6.6L) .
Fill the cooling system, as necessary. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac-N-Fill) .

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.