Clogged Radiator or Head Gasket? $300 Gamble! Cut it OPEN! Buck 3.6 Overheat

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Fix a Buick Enclave overheating issue by locating coolant leaks with thermal imaging and testing head gasket sealant.

This repair guide demonstrates the process of troubleshooting a persistent coolant smell and engine temperature spike. It is designed for Buick Enclave owners dealing with cooling system failures who want to see a practical, step-by-step approach to diagnostics.

Over three days, I utilize thermal imaging diagnosis to pinpoint the source of the leak. After identifying the problem, I apply Bar's Leaks head gasket sealant to resolve the issue. By the end of the process, the temperature gauge confirms the vehicle is back at operating temperature, offering a reliable car overheating fix. This walkthrough provides a clear look at engine overheating troubleshooting for those looking to handle their own coolant leak repair.

Subscribe for weekly automotive repair breakdowns, and leave a comment below if you have questions about cooling system diagnostics.

Troubleshooting an overheating car repair can be tricky. See how we isolate the cooling system issue on this Buick at Ray's Auto Clinic.

This video follows our ongoing work on a stubborn Buick cooling system issue. If you are dealing with intermittent overheating, this breakdown shows the specific diagnostic steps taken when standard checks fail. We walk through the inspection process at our Bradenton shop, showing exactly where the trouble lies and how to address it.

Following the inspection, we demonstrate the process of draining fluids and checking internal components to pinpoint the failure. This approach helps you understand the logical flow of mechanic troubleshooting for modern cooling systems. Use these techniques to diagnose your own car overheating causes before replacing expensive parts.

Subscribe for weekly auto repair guides and comment below if you want to see more diagnostic walkthroughs on this Buick.

0:00 The Mystery of the Overheating Buick
1:45 Is the Radiator the Culprit?
3:21 Removing the Radiator for Inspection
6:06 Suspecting a Past Quick Fix
12:11 Dissecting the Radiator for Science
26:00 Revisiting the Combustion Gas Test
37:24 Spotting the Hidden Bubbles

Part 1! I’m at my wits end with this one 😂 Leak Down Test, Pressure Test, Chemical Test! - Bubbles In Cooling System! Buick Enclave 3.6
https://youtu.be/t8hjv_UyAyE

Part 2! HELP! Can’t Find The Problem! Buick 3.6 Running HOT! https://youtu.be/J7GsRx1BnLk

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This channel is about general automotive repair and maintenance . We cover a large variety of automotive services and repairs in a privately owned independent automotive repair shop, Ray's Auto Clinic, located in Bradenton Fl.
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RainmanRay Off Duty https://www.youtube.com/c/RainmanRayOutoftheShop
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Posted by GG in Default Category on August 20 2026 at 01:38 PM  ·  Public

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