Fix Coolant Leaks: 2001 Lexus RX300 3.0L V6

Lexus RX300 Model Years - 1999, 2000, 2001, 2002, 2003

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.

2003 Lexus RX300 3.0L V6 Transmission Fluid Check Fluid Level

Harsh downshifts? Slipping gears? You might be low on transmission fluid

2003 Lexus RX300 3.0L V6 Battery Jumpstart

Learning how to jump your car before you need to is an excellent idea

2013 Lexus RX450h 3.5L V6 Bluetooth Pair Phone

Driving with your phone pressed against your ear is illegal in many places. See how to talk hands free!

2003 Lexus RX300 3.0L V6 Fuse (Engine) Check

Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!

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 2001 Lexus RX300. Leaking coolant / antifreeze is one of the more common types of leaking fluid from RX300 engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your RX300 engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2001 RX300 with the 3.0 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 RX300 may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2001 RX300 Base 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 2001 Lexus RX300. Always protect yourself with safety glasses and gloves when working with the coolant on your RX300.

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