Diyvehiclerepair
- Why does my car make a rattling sound when I start it?
- Why does my car make a screeching sound when I start it?
- Why does my car make a weird noise when I turn it on?
- Why is my car making noise when I start it and the noise goes away after a few minutes?
- What does a timing chain rattle sound like?
- Does a bad alternator squeal?
Why does my car make a rattling sound when I start it?
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 make a screeching sound when I start it?
You start your car in the morning, and as soon as the engine fires up, you notice a loud, high-pitched squeal. ... Although there are a few causes of a squealing engine, one of the most common is a bad or failing serpentine belt. The serpentine belt – or drive belt, as its also known – plays a vital role in the engine.
Why does my car make a weird noise when I turn it on?
Suspension Joints: Especially when heard at lower speeds, a creaking, clunking, or popping sound could indicate worn out or broken suspension joints. ... Power Steering System: A screeching or whining noise while turning at normal speeds could mean an issue resides within the power steering system itself.
Why is my car making noise when I start it and the noise goes away after a few minutes?
What is this? Piston slap is an extremely common cause of cold start engine noise. ... If the pistons and cylinder bores are set up and machined to the correct specifications and tolerances, the piston slap should not occur. This is one of the reasons why the sound of the slap will go away a short time after starting.
What does a timing chain rattle sound like?
Listen for a metallic sound that resembles a rattling or scrapping noise. The sound can be intermittent or constant, but it will be a metal to metal contact. Such a noise will reveal a loose timing chain hitting the inside of the timing chain cover every time it rotates. You might also hear a metallic slapping noise.
Does a bad alternator squeal?
An alternator's bearings can become worn and create noises, including a squeal. An alternator with worn bearings will likely produce an insufficient charge to operate the engine and charge the battery. ... If noises are heard or the pulley does not turn smoothly, the bearings are worn and the alternator should be replaced.
