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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1811 (ENGINE COOLING SYSTEM)REPAIR INSTRUCTIONSSURGE TANK REPLACEMENTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Surge Tank Bolts

Courtesy of GENERAL MOTORS CORP.

Install the surge tank outlet hose to the bottom of the surge tank.
Install the surge tank outlet hose clamp to the bottom of the surge tank.
Connect the low coolant sensor to the surge tank.
Align the surge tank retention tab and lower the surge tank into the vehicle.

NOTE: Refer to Fastener Notice .

Install the surge tank bolts to the vehicle.
Tighten: Tighten the bolts to 8 N.m (71 lb in).
Install the surge tank inlet hose to the surge tank.
Install the surge tank inlet hose clamp to the surge tank.
Fill the cooling system. Refer to Draining and Filling Cooling System (Static Fill) or Draining and Filling Cooling System (GE 47716 Fill) .

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.