I'm a bit worried that my Scion IQ would produce a rattling noise when I start it up in the morning. I've had no issue like this a couple of months ago. Could the cold weather be the reason for it? I know that cold engines could make some weird sounds once being started up, but the sound I've been hearing is bothersome. Any thought on this?
Generally, some vehicles' engines would produce a rattling noise especially after sitting unused for several hours overnight. A normal rattling sound would last for about four or five seconds, but beyond that is enough reason to cause panic. If such is the case, then the timing chain tensioner may be the culprit. For this, the engine oil level must be checked out. While a few engines do not actually rattle, some really do. This is because engines have particular stop points and the varied chain tensions could produce different levels of cranking noise. That is why, the engine oil is a very important part of the startup process. The oil for the tensioner goes back to the oil pump when the engine is off, hence the chain may lose some of the required tension when it is cranked. The oil goes up when pressure is adequate but may be delayed due to some reasons. Thus, the bothersome noise you described.
My pal who has been driving for quite some time started lecturing me about wheel alignment, tire rotation, and other essential tire care maintenance that I can't completely comprehend. My question is, what would happen if I don't do any of those?
Tire or wheel alignment refers to the adjustment made on the vehicle's suspension so that your tires are at a correct angle when making contact with the road. By not having the proper alignment, then your wheels would point the wrong way, thereby putting your safety on the line. Frequently hitting the curb, getting on potholes, bumping into solid parking stalls, as well as the natural aging, wearing, and tearing of your tires can make you lose your wheel alignment. Meanwhile, tire rotation means moving your tires from left to right, front to back, or diagonally. Your tires make direct contact with the road, so they tend to wear out easily. Your front tires are responsible for steering so they basically get more worn out. Tire rotation balances the wearing out of your tires and therefore gives you smoother ride and better handling.
My car stinks. It's like the smell of mildew and it's really overpowering once I get into the car first thing in the morning. The air freshener doesn't help either. What must be causing this?
That musty smell usually arises as mold and mildew build up in the carpets, air conditioner vents, and other corners of your car. The main culprits include excess moisture and lack of proper ventilation. Apart from that annoying smell, mildew and mold growth also promote the accumulation of toxins, gases, and other pollutants that could get into your system as you breathe them in. To combat them, dry the air naturally by opening the doors and windows. Have your AC system checked out to ensure it is dispensing clean air. Moisture-absorbing silica gel can also be useful. And most of all, keep your vehicle clean at all times.