Repairing your car yourself is a great way to save money, and overheating problems are usually easy to do even with little experience.
Grandpa TJ: I've located videos which deal with many of the types of leaks you may run into when overheating. If you are handy with some simple tools and can get to a hardware store, these videos will give you enough information to get the job done.
Remember, you can get personalized help including video chat during your repair if you need it. Visit Grandpa TJ's Inner Circle for more information on how to schedule a live consultation.
Cooling system repairs are relatively easy to do and can save you a lot of money.
- Grandpa TJ -
If you haven't already done so, diagnosis is the first step. This video goes over how to diagnose the cooling-system problem.
Thanks to Budget Mechanic Hawaii for the YouTube video.
Watch on YouTubeA second diagnosis walkthrough for common overheating causes.
Thanks to 1A Auto: Repair Tips & Secrets Only Mechanics Know for the YouTube video.
Watch on YouTubeAlways wait for your car to cool before opening the radiator cap. Scalding hot fluid under pressure can spew out and cause severe injuries. These guys didn't wait — major fail.
Thanks to Packeteers & C10 TRUCKS for the YouTube videos.
Watch on YouTubeSometimes you cannot wait 15+ minutes for the car to cool. Find running water (for example a service-station hose) so you can carefully relieve pressure and cool the system.
Thanks to Dr Valeriy for the YouTube video.
Watch on YouTubeHow to add coolant the right way after the system has cooled.
Thanks to 2CarPros for the YouTube video.
Watch on YouTubeHow to search your car's cooling system for leaks.
Thanks to 1A Auto: Repair Tips & Secrets Only Mechanics Know for the YouTube video.
Watch on YouTubeCheck upper and lower radiator hoses, then replace them if needed.
Thanks to ChrisFix for the YouTube video.
Watch on YouTubePrimarily radiator replacement, plus brief coverage of water pump, thermostat, hoses, and refilling/burping.
Thanks to ChrisFix for the YouTube video.
Watch on YouTubeA large active water-pump leak can overheat and permanently damage the engine. See how cost-effective a driveway repair can be.
Thanks to ChrisFix for the YouTube video.
Watch on YouTubeHow to replace an engine-mounted coolant thermostat.
Thanks to BleepinJeep for the YouTube video.
Watch on YouTubeHow to replace a radiator-mounted thermostat. After any cooling-system work, burp the air out so air pockets don't cause more overheating.
Thanks to wingman1861 for the YouTube video.
Watch on YouTubeEmail Grandpa TJ for free unbiased advice, or join the Inner Circle when you need a real conversation with a real person.
© 2026 Serendipity Labs, LLC. All Rights Reserved.