2010年7月27日 · My guess is that the majority of car owners – especially those under 50 years old – don’t check their engine oil level at all. Most car owners I expect either wait until some symptom develops, then take it to the shop; or the more diligent and organized schedule shop visits for pro-active servicing, and let the shop check the oil level.

2013年4月21日 · However the muffler restricts the engine exhaust and thereby reduces performance. A sports car will typically have a "sports muffler" which is less effective at reducing noise for the sake of improved engine power. Also the engine power being higher will typically mean more "sound power" coming from the exhaust.

2014年8月17日 · After I took my Ford Focus 2011 to the dealership for a free oil change I noticed a subtle, low hum coming from the car when I hit speeds past 40mph. At first it sounded like the engine of a louder car driving near me so it took me a couple days to realize that it was actually my car making the noise. I intended to bring the car right back to the dealership to complain about this but I kept ...

2011年11月15日 · Loud vehicles are generally the result of a worn out or modified exhaust system, sometimes in conjunction with a modified engine. I think Mark has given you good advice on dealing with it. Regarding idling damaging a modern engine, it will not.

2007年10月4日 · Have someone start the engine and get the RPM"s up to about 2,000. Now slowly loosen the pliers from the hose so the Seafoam is drawn into the engine. The idea is to keep the RPM’s up, and allow the SeaFoam to enter the engine without stalling it. When all the SeaFoam is sucked out of the can, shut the engine down, and let it sit for a half hour.

2017年12月29日 · This car is spec’d by Hyundai to use synthetic oil and that makes a huge (positive) difference in cold startups in single digit, or colder, temps. If you are not using synthetic oil then you are only exacerbating your problem. Keep in mind that most engine wear occurs at startup, before oil can fully circulate.

2014年1月8日 · I have a loud engine rattle like there’s a golf ball bouncing around in the engine. So far the mechanics have no idea where the knocking is coming from. Here’s a video of the sound at idle. If you attempt to drive (or rev above 1500rpm) the sound becomes very loud and is then obviously undrivable. It’s a 1999 Volvo V70, 2.4L, non-turbo, automatic It has 260,000km or 162,000mi Listen for ...

2007年8月18日 · I recently dove through a large puddle of water and my car stalled out when the water splashed on it. When the car finally started back up it had a really loud knocking sound to it. I have checked the ignition and oil for water. I see no signs of water that got in the engine anywhere. the faster the car goes the quieter the noise gets and the slower or at stand still the noise is unbelievable ...

2000 Crown Victoria, 207K miles, 111K on current engine My car has been an absolute champ since I took ownership of her at 133K miles, and to this day runs trouble-free. However, it’s just started making a noise that’s got my scratching my head. I can only describe it as a “puff” sound. It’s consistent with engine speed (higher RPM = faster puffs), and seems to get louder the more ...

2010年3月9日 · My 2002 Chevy Cavalier seems to be getting quite loud on the highway. It is from the front of the car and I can feel some high frequency vibration in the steering wheel. I don’ think it is the engine because that sounds normal when at any rmp when I’m parket or on slower roads. Is this something I should be concerned about and can I get it fixed?