cooling system Archives - UnderhoodService
Auxiliary Cooling Pumps

An auxiliary cooling pumps primary function is to circulate warm coolant to the heater core.

A/C System Manifold Gauges

A basic gauge set will have three basic components.

HVAC Diagnostics

Knowing the cause of the complaint might require looking at several components.

Bar’s Leaks Tech Tips for Driving in a Winter Wonderland

Proper cooling system preparation helps prevent customers from getting stranded.

Overcharged A/C Systems

Your customers got hot this summer and recharged their A/C system with a DIY refill. Now what? Here’s what to look for.

Auxiliary Coolant Pumps

Don’t be fooled into thinking that these pumps will go away with the surge in hybrid and electric vehicle production.

Rislone Cleaner Protects Entire Cooling System

The product is formulated to remove damaging coolant deposits that build up and cause engine overheating.

Preventive Maintenance Tips To Avoid Coolant Hose Failure

Determining a worn-out hose isn’t as simple as it used to be. This video is presented by The Group Training Academy.

Understanding Today’s Complex Cooling Systems

‘Radiator hoses’ are now ‘modular coolant assemblies.’ This video is presented by The Group Training Academy.

Cooling System Leak Testing

What replaces the conventional water pump and thermostat is electronic thermostats and electric water pumps.

Cavitation: Killer Of Water Pumps

The condition of the coolant has a direct relationship to cavitation in pumps.

Active Grille Shutter Service

Mounted ahead of the radiator, active grille shutters have motorized horizontal vanes that can rotate to block airflow.