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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 830 (ENGINE COOLING)REPAIR INSTRUCTIONSSURGE TANK REPLACEMENTINSTALLATION PROCEDURE

1999 GMC Forward Control 5.7 R, Automatic

Installation Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Heater Outlet Hose Clamp & Surge Tank

Courtesy of GENERAL MOTORS CORP.

Connect the coolant level switch to the engine harness.
Install the return hose and clamp. With the clamp at the 7 o'clock position.
Install the surge tank by inserting the surge tank retention tab into the upper motor rail while lowering the tank into place. Install the tank to upper motor rail bolts.

Fig 2: Coolant Surge Hose & Clamp

Courtesy of GENERAL MOTORS CORP.

Install the cylinder head degas hose and clamp.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Connect the negative battery cable.
Tighten: Tighten the negative battery cable bolt to 17 N.m (13 lb ft).
Fill the cooling system. Refer to Coolant Replacement in this section of the service manual.

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.