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molurch, GMC Mechanic
Category: GM
Satisfied Customers: 20811
Experience:  GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
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How do i drain the radiator on my 2006 buick lacrosse?

Resolved Question:

How do i drain the radiator on my 2006 buick lacrosse?
Submitted: 7 years ago.
Category: GM
Expert:  molurch replied 7 years ago.


Some have a Drain Cock on the Driver side bottom, facing the engine. Some don't & the Lower Hose needs to be removed to drain


Remove the coolant pressure cap.

Place a drain pan under the drain cock.

Open the radiator drain cock.

Drain the cooling system.

If a complete engine block drain is required, remove the knock sensors.

Inspect the coolant.

Follow the appropriate procedure based on the condition of the coolant.

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