Car makes a metal grinding noise at idle

Noises on cars are must be heard to be diagnosed,

2004 nissan altima is making a rear grinding noise, check engine light on, and the rpm hand dont move pass 2

Change your spark plugs
Had similar problems like this before

Hello i would check your wheel bearings or sometimes called bearing hub .Jack car up prop the car with axle stands now remove your tires and rotors once removed wiggle you bearing hub left to the right your bearing hub should have minimal play one side to the other is obvious the looser play hub will be your noise you have been experiencing.most people call this road noise.

It a small piece of metal that rubs against your rotor, to let you know the brake pads need to be changed. It's an indicator before they get worn really bad. If this is not repaired you will spend more money to replace the rotors from the metal grinding into the metal rotor.

Hi this sounds like your starter motor may have broken.

most likely a front wheel bearing needs to be replaced

bad rear wheel bearing,causing tire and rim to be sideways and rubbing on brake....good luck...lee

Hello There

Have you checked to see you have the right tyre pressure. The only solution to your problem is new tyres with softer compound. A tyre that is made for both wintre and summer. The dry or summer tyres have a harder compund and make more noise on the road.

Hope this helps. Please don't forget to rate me.

Many Thanks

CV joint has gotten debris and moisture inside. The CV boot is bad and not protecting the joint. Now its metal on metal grinding. This happens when turning as there is more pressure on the joint. Please fix this ASAP as it can be dangerous to drive on a bad CV joint. While I have seen people drive with a bad CV joint for over 4k miles, it is NOT recommended!