Fix Coolant Leaks: 2006 Buick LaCrosse CX 3.8L V6

Buick LaCrosse Model Years - 2005, 2006, 2007, 2008, 2009

How to fix a radiator and coolant leak with stop leak

Author

Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.

2016 Chevrolet Impala Limited LS 3.6L V6 FlexFuel Car Seats Install

You love your kids right? See how to properly secure their car seat.

2007 Buick LaCrosse CXL 3.8L V6 Lights Reverse Light (replace bulb)

White light when you back up - yup, they burn out and you can replace them with bright LEDs

2007 Pontiac Grand Prix 3.8L V6 Air Filter (Cabin) Replace

Dirty cabin air filter cause undue wear on your car's heater and AC and can cause bad odors

2007 Buick LaCrosse CXL 3.8L V6 Brake Fluid Add Fluid

If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems

Share on   Share on Twitter   Share on Facebook
Parts & Tools
We may earn a commission from qualifying purchases as an Amazon Associate
Video Description

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2006 Buick LaCrosse. Leaking coolant / antifreeze is one of the more common types of leaking fluid from LaCrosse engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your LaCrosse engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2006 LaCrosse with the 3.8 liter engine. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Otherwise, your LaCrosse may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2006 LaCrosse CX are located and the steps needed to fix minor leaks.

A few things to note about coolant is that it is sweet tasting and highly toxic, so it can end up in the dog's stomach pretty quickly. If you ignore a small coolant leak long enough, you will run out of coolant, which leads to an overheated engine and other serious, but highly avoidable, problems. An anti-freeze leak can cause the temp sensor to record high engine temperatures in a 2006 Buick LaCrosse. Always protect yourself with safety glasses and gloves when working with the coolant on your LaCrosse.

  • Advance Auto coupon for
    20% off entire order: KIOSK20