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How to Locate Common Coolant Leak Locations

1A Auto: Repair Tips & Secrets Only Mechanics Know via YouTube

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Overview

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This course demonstrates how to locate and diagnose common coolant leaks in GM, Ford, Nissan, and Subaru vehicles. It covers symptom-based inspection, pressure testing, and leak-related failures involving intake gaskets, thermostat housings, radiators, and head gaskets.

Syllabus

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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1A Auto: Repair Tips & Secrets Only Mechanics Know

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