My 2001 malibu just started making a loud grinding noise under the hood and also makes a srubbing noise when i turn right or left. what could this be all of a sudden

Look under the hood.. while some one is turning steering.. probably a Power steering pump going bad..

This is typical of a wheel bearing that is going out. I would imagine that it is your right front, but it could be either side. It is a safety issue as it helps to hold your wheel to your car so get it to a mechanic quickly.

Probably so. When making a left hand turn, if the noise gets loader, it is the right side bearing. IE... putting more wieght on that side of the car.

sound like a CV shaft,now you need to figure out which one LorR

Almost sound like your rack and pinion cylinder has gone bad. I would start by cleaning the area real well to get rid of the oil. With the car running have someone sit inside and turn the wheels from left to right while you stand and watch to see if you can see oil leaking and from where and also to see if you can tell where the grinding is coming from. Please do not try to clean the engine with it running as you will get burned from heat and your clothes may become tangled in moving parts.

Check front tyres & wheel bearings espesially the R/H/F. Feel tyre for high / low spots on inside & jack up & spin wheel if you get noise while jacked up it is not the tyres but wheel bearing or brake pads but more than likly a crook bearing by the sound of it. It needs to be tended to ASAP

• Hi, I can help.
• When your water pump goes bad it will begin to grind. I had one I let got far to long and it sounded deafening when I opened the hood. You can open your hood and listen and see for yourself. The water pump is on the belt line, left side under the hood, last pulley toward the rear.
• Now if your asking can an oil change effect the water pump? No, not at all. Water pumps go sporadically.
• It would be odd that you heard no noises before the oil change and now the water pump is loud enough to take notice after the oil change. The bearings usually go a little slower than that.

• I would be interested in some more of the details to this. And what your overall concerns are. I'd be happy to further. help. Otherwise get a second opinion on your cars condition.

• Hope this helps and thank you for using FixYa.

Regards, Tony

It sounds like your car is low on power steering fluid. When the power steering fluid is low, the power steering pump is running dry, which makes a grinding or moaning sound. Check the power steering fluid level and top up if necessary. It should be on the left side of the engine compartment. Your owners manual should have the exact location of the power steering reservoir, and what type of power steering fluid to use.
Good luck
Matt

ok. so find out whats making noise under the hood. they may be unrelated?

Possible brakes or wheel hub