Engine

A defect in VW’s family SUV may cause the engine cover to come loose and potentially melt on hot engine surfaces.

How long spark plugs last varies with different cars and different types of spark plugs.

Top Tier gasoline contains more effective detergents than federally required, which helps clean fuel injectors and reduce harmful carbon deposits inside the engine.

Though coolant and antifreeze are often used interchangeably, they aren’t the same. Here are the differences car owners should be aware of.

There are several possible causes of an engine misfire, from a fouled spark plug to a clogged fuel injector or faulty oxygen sensor.

While it’s normal for a car to be idling high when it’s first started, if the idle doesn’t drop to normal after a minute or two, something’s probably wrong.

While fuel-injector cleaning is often recommended by shops and dealer service centers, it probably isn’t necessary unless it’s correcting a running problem.

Since an engine can suffer severe damage if it’s run too hot, you should be concerned if there are indications the engine is overheating.

Diesel engines don’t have spark plugs; instead, they use the super-heated air created by their high compression ratios to ignite the diesel fuel as it’s injected into the cylinder.

Limp Mode allows your car to be driven a limited distance at reduced speed when something is wrong and may cause severe damage or stop the vehicle from running.