COOLING & HEATING SYSTEMS
Cooling System Diagnosis & Testing — Gas, Hybrid & Electric Vehicles
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Your vehicle’s cooling system plays a vital role in keeping critical components at safe operating temperatures. At Miller Place Auto Repair, we provide complete cooling system diagnostics and pressure testing to identify leaks, restrictions, or failing components before they turn into major repairs.
WE CHECK:
• Radiators, hoses, water pumps, and thermostats
• Cooling fans, sensors, and coolant quality
• System pressure and temperature regulation
• Coolant flow through heater cores and secondary circuits
For hybrids and EVs the cooling system
is even more complex.
These vehicles use dedicated cooling circuits to regulate the temperature of:
• Battery packs
• Inverter modules
• Electric drive motors
• Onboard charging systems
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In many cases, the air conditioning system is integrated into these cooling loops—using the A/C compressor and refrigerant system to actively cool power electronics and batteries, especially during charging or high-load driving. If the A/C isn’t functioning properly, these components can overheat or shut down, even if the cabin feels cool.
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That’s why diagnosing hybrid and EV cooling issues requires a deep understanding of both coolant-based and refrigerant-based systems—and that’s exactly what we offer.