Why does my car sound like its rattling when I turn it on?

Why does my car sound like its rattling when I turn it on?

One common problem that will cause a rattle at idle is a failing hydraulic valve lifter. The lifters are small parts that open and close the engine valves, activated by oil (hydraulic) pressure. If you hear a “clack-clack” kind of rattle when you start your car’s engine, it could be a sign of piston slap.

Why does my car rattle sometimes?

If you notice a rattling noise coming from underneath your vehicle, a bit like a box of stones being shaken, this could be a sign that you have a problem with your exhaust system. This sound is often a warning sign of a faulty catalytic converter, and if this is the case, you may need to get a new one.

When I press the gas my car makes a noise?

There are a few things that could cause noise while operating your gas pedal. Potential issues could be a vacuum leak, exhaust system leak, or even a problem with the gas pedal or throttle cable.

What does engine sound like with low oil?

Should your vehicle’s engine run low on engine oil it could cause it to make a loud “ticking or tapping” noise. This noise is caused by an insufficient amount oil being pumped into the top part of the engine.

Why is my car is making a clunking noise?

Possible Causes Of Your Car Making Clunking Noises. There are many different things that could be causing your car to make clunking noises. These include: engine. transmission. tires. shock absorbers. ball joints.

Why is my car making a ticking noise?

A ticking sound could be caused by any number of reasons, such as a low level of oil or loose components. You may hear a ticking, clicking, or tapping noise while the vehicle is idling, accelerating, or even after receiving an oil change.

Why does my car make chirping/rattling sound?

If a few of these nuts or bolts get very loose, you may hear a rattling noise caused by the wheel moving around on the hub . If you have wheels that are covered by hubcaps, a loose lug nut can make a rattling noise as it bounces around inside the hubcap.

Why does my AC keep making a rattling sound?

Common reasons why a car AC system makes a rattling noise is due to a failing AC compressor, worn serpentine belt , or worn out AC compressor clutch . Your car’s AC system is designed to keep you cool and comfortable when temperatures rise.