1. Getting Started - Prepare for the repair
2. Open the Hood - How to pop the hood and prop it open
3. Locate Hoses - Locate the coolant hoses and connection points
4. Assess Hoses - Tips for how to assess the condition of the hoses
5. More Info. - Additional information on coolant hoses
The video above shows to check the coolant hoses in your 2003 Buick Regal. The coolant hoses (radiator hoses) carry engine coolant through your engine and will eventually wear out. You can avoid getting stranded by identifying signs of extreme wear before they break. In 2003 Regals with the 3.8 liter engine, coolant leaks are most likely to occur where the hoses connect to the engine, but it can also leak from the reservoir or from the hoses. Look for cracks in the hoses and analyze the brittleness or squishiness of the hoses in your Regal - if the hoses are hard to squeeze or squeeze very easily, it's time to replace them. The video above shows you where coolant hoses on your 2003 Regal LS are located and the steps needed to analyze them.
Never attempt to replace a hose that is connected to your air conditioner - these hoses contain refrigerant that is under pressure and can blind you. AC problems are always best left to your professional mechanic.
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.
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