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Wise Auto Tools Summary: Easy to understand master tech tips on how to troubleshoot a car’s heater system that’s not working. It’s best to understand the basics of how it works and what makes it blow hot air. That way you’ll know how to fix your car heater if it’s blowing cold air. To put it simply, a car’s heater system transfers heat from the engine to the inside of the car. It does this by circulating the engine’s coolant from the engine and then through the heater core. Once the hot cool …

WiseAutoTools.com © Summary: This article covers several options for repairing stripped threads for oil and transmission (Primary or Secondary) drain plugs on Harley Davidson motorcycles. Harley Davidson motorcycles obviously vibrate a lot which may lead to the drain plugs loosening over time. If they loosen up any, thread deterioration may occur. Aluminum threads can also get damaged and stretched if drain plugs are overtightened a little.  It does not matter if it’s a Harle …