Its intake valves, for example, regulate air and fuel. Its pistons pressurize the mix, its spark plugs ignite it, and its exhaust valves regulate the resulting fumes.

There are also valve covers to protect the valves, a camshaft to make sure the valves open and close right, and a cylinder head, which helps prevent gases and motor oil escaping. There's even a crankshaft to transform engine power into rotary motion -- movement that, thanks to drive shafts and the transmission, spins the wheels and tires. Last, but not least, there's an oil pan that stores the motor oil used to lubricate it all; it's also called an oil sump.

Many other parts ensure proper fitment and operation -- things like gears, rings, bearings, and sprockets. When any of them stop working, engine problems almost always result. Signs of them include:

Dashboard warnings, like a lit Check Engine light
Increased emissions coming from the exhaust
A drop in fuel economy
Issues speeding up
The car taking longer to warm up
Rough idling
Stalls, or being unable to start the car at all

Seeing any of them? Do a complete engine inspection to get a better idea of what's happening. And if you're planning to order replacement engine parts online, our store should have what you're looking for.

Keep Your INFINITI M35 Running Right -- Install Genuine OEM Engine Parts

We sell only authentic engine parts -- those made by INFINITI and guaranteed to work with your M35 model. Take advantage of shipping directly to your address -- buy now!