Free Car Diagnostic

Mildew Odor Comes Out the AC Vents

The air that comes out the air conditioning vents has mildew odor. The reason for this problem is that the drain pan is not draining.


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Car Runs then Dies

Initially the car runs after starting then after several seconds the car dies. The possible reasons is run on, fast idle speed or leak on fuel injectors.


Engine Pinging Noise when Driving Uphill

The engine produces pinging noise when driving uphill but no noise when driving on normal roads. The reason is because low octane gasoline is used, the air is thin or load sensor is faulty.


Car Ride is Not Smooth but Hard

The car ride is not smooth but hard, the passenger can feel every bump and road undulation.

Engine Ticking Noise While Driving

Engine ticking noise while driving is heard or there is a slight tapping noise from the engine while the engine is running.


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Radiator Boils Over when the Engine is Semi-hot

The radiator boils over even though the engine is semi-hot. The two possible reason is causing this problem, first is a leaking radiator cap, second is a wrong anti-freeze/water ratio. image
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Steering Wheel becomes Stiff While Driving

The reason why while driving sometimes the steering wheel becomes stiff is a problem on the steering pump or the steering belt is slipping.

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