How to Locate Common Coolant Leak Locations

Learn how to diagnose and locate common coolant leak locations in various vehicle makes and models in this comprehensive 42-minute video tutorial. Discover the signs of coolant leaks, including lack of heat and sweet smells from the engine bay. Explore specific leak points in GM 3.8 Liter engines (intake manifold gasket failures), Ford 4.0 Liter engines (thermostat housing leaks), Nissan 4.0 Liter radiators (transmission fluid cooling passage breakdown), and Subaru 4 Cylinder engines (head gasket leaks). Gain valuable insights into pressure testing techniques and understand how coolant can mix with other fluids or leak into cylinders. Master the skills to identify and troubleshoot coolant leaks across different vehicle types, empowering you to maintain your vehicle's cooling system effectively.

No Heat? Sweet Smell From Engine? How to Locate Common Coolant Leak Locations!
GM 3.8 Liter - Intake Leak
Coolant flows through the intake manifold. Gaskets can fail due to EGR heat, causing leaks
Ford 4.0 Liter - Thermostat Housing Leak
Pressure testing can help detect weak seals on the thermostat housing
Nissan 4.0 Liter Radiator Leak
Transmission fluid cooling passage through the radiator can bread down, which mixes coolant and transmission fluid through both systems.
Subaru 4 Cylinder Engines - Head Gasket Leaks
Coolant can leak either into the cylinder, or out between the head and the block due to worn head gaskets
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