Four Wheel Logic

A bad catalytic converter typically causes a rotten egg smell, rattling noises from under the vehicle, sluggish engine performance, and a triggered Check

Slow engine cranking, dim headlights, a rapid clicking noise during ignition, and a bloated casing are clear indicators that a car battery is dying.

A bad brake booster usually causes a stiff pedal that requires extreme force to stop, often accompanied by a hissing noise near the floorboard.

Slow engine cranking, dim headlights at idle, and a swollen case are primary signs your car battery is failing or needs immediate replacement.

Dimming headlights, a dashboard battery warning light, and a burning rubber smell are the most common indicators that your alternator is failing.

You can identify a bad alternator by checking for dimming headlights, listening for whining noises, or testing if the voltage drops while the engine runs.

A bad alternator often reveals itself through dim headlights, a burning rubber smell, whining noises, or a battery warning light appearing on your dashboard.

You likely need a new alternator if the battery light illuminates, headlights dim while idling, or the engine stalls due to a lack of electrical power.

You can tell if a head gasket is blown by checking for sweet-smelling white exhaust smoke, persistent engine overheating, and milky discoloration under your

A bad catalytic converter typically causes a rotten egg smell, rattling noises from beneath the car, and a noticeable drop in engine power.