Car makes chirping noise on startup

My car makes a chirping noise when I start it.
Experienced mechanics share their insights in answering this question :
When you hear the noise, it may be a belt noise or a starter noise. The starter’s on these engines have a problem with a gear reduction squeal during the engine’s start up. To fix the issue the starter would need to be replaced. I recommend you have a mechanic like one from YourMechanic check your vehicle out for you to diagnose your vehicle and make any of repairs that are necessary.

How to Identify and Fix Common car Problems ?

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Chirping sounds indicate that the engine`s timing or serpentine belt has become loose or damaged. Some belts in automobiles can be adjusted, while others must be replaced. If these engine problems are not addressed, they will worsen, endanger your safety, and inevitably cost more to repair.
Cold weather can exacerbate underlying car problems, so you may begin to hear squeaks, squeals and other funny noises you haven`t heard before. These noises may be caused by the engine belt, the serpentine belt, the air conditioning compressor or a power steering pump.
Damaged CV joint: The most common cause of a clicking or popping sound from the wheels is a broken CV joint. The CV joints, which stand for Constant Velocity, are essentially the wrists of your vehicle`s steering system.
Your car`s suspension system is designed to ensure your tires maintain constant contact with the road, particularly on uneven surfaces like bumps. So it`s no surprise that a squeaking noise coming from your car when you drive over a bump can likely be attributed to the suspension.
Misalignment: A chirping belt typically indicates an alignment problem between one or more components in the drive . Components that are out of alignment by as little as one degree can create belt chirp as the belt ribs slide down one side of the pulley grooves.
Buzzing sound: This usually indicates poor current flow as the buzzing sound means the current is making its way to the solenoid but could not activate the plunger to engage the pinion gear and flywheel of the starter motor.
Low Oil Level, Oil Pressure, or Worn Engine Components

Low oil, oil pressure, or worn tolerances in the valvetrain, can trigger a very distinguished ticking sound. People often call this “lifter tick.” The top end of your engine will suffer initially if you do not have adequate oil or adequate oil pressure.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My car makes a chirping noise while in motion, the noise is more frequent based on how fast I’m traveling.
ANSWER : You should have the brake sensors checked to see if the brakes are worn to the sensor or the backing vent plate is rubbing the rotor. If both are good then you may have a front wheel bearing then is going bad and needs replaced. Only a physical inspection can verify the brakes are good and not cause of noise and the bearing is bad.

Car makes grinding noise – 1996 Chevrolet Corsica
ANSWER : Hey there, thanks for writing in. I would have a professional mechanic check out the constant velocity joints on your vehicle. One or more of them may be worn enough to cause the noises you describe. S/he can diagnose and replace any failed CV joints.

My car makes a really annoying noise and sometimes dies right after
ANSWER : Hi there. From the description you have provided your vehicle’s moaning noise and intermittent stalling problem could be any number of things. It could be a failed alternator diode making the moaning noise and affecting the idle.

A failed alternator diode(s) allows voltage to flow both directions or no flow at all resulting in noise heard and erratic electrical operation. It could be a faulty idle air control valve. The idle air control valve can make noise and would account for the erratic idle and sporadic dying. It could be an accessory component, such as an A/C compressor, serpentine belt tensioner, or idler pulley, power steering pump making noise and placing undo load on the engine at idle. If you would like to have this done, a certified professional from YourMechanic can come to your car’s location to diagnose the noise and stalling issue.

car making womp womp noise and pop
ANSWER : A common cause of a noise like that is tire belt (internal) separation, flat spot(s) on tire or other tire defects. If the tires end up being excluded during a diagnostic, the CV axles, wheel bearings, and unfortunately the transmission and clutch have to be considered. The noise on turning is suggestive of a possibly defective outer CV joint but very loose tie rods ends and ball joints can sometimes be implicated. Also, it is possible to have a bad strut bearing, in the strut mount. Keep in mind, a "combination" of faults might be in play here. Your best bet is to request a front end inspection/diagnostic during which the responding certified mechanic will get this resolved for you insofar as identifying the root cause(s) and estimating the repair for you.

Car makes noise only in the morning
ANSWER : Hello. Thank you for writing in. When the vehicle sits for an extended period of time, the oil collects at the bottom of the engine due to gravity. This causes the engine and components in which the oil lubricates to run dry. There is no problem with this while the engine is off, and every car does this. Now when the vehicle turns on, the engine will need a moment to circulate that oil throughout the engine. Once the oil becomes warm enough to be the viscosity in which the engine desires, and everything has had a moment to become lubricated again, there should not be any more noises coming from the valves. If this is a new noise or it is irritating to you, you can attempt to change your oil or maybe even change the type of oil that you were using. The noise is simply the engine not having oil when it first starts up. But this is normal.

car won’t start.
ANSWER : A possibility is a faulty ignition switch. If the switch opens after the car starts, the engine will shut off. But, that is just a possibility and a diagnostic would have to be performed to rule that in or out. Be sure you have a fully charged battery that passes a load test. Starters motors can display intermittent operation if they are faulty. With a fully charged battery, if the starter motor does not run that signifies an electrical problem in the starter circuit (includes the ignition switch) or a problem with the starter motor itself. If there is power to the starter motor and yet it doesn’t run, the starter is condemned and replaced. Alternatively, if there is no power to the starter, or there is a big voltage drop anywhere on the circuit to the starter, then the circuit has to be traced until the fault in the circuit is found. Notably, faults can include high resistances, due to corrosion, wire strand breaks, or loose terminals, which can only be diagnosed using a voltage drop test. Regardless of what the underlying cause of the no start condition is, if you desire that a certified mechanic resolve this promptly, please simply request a no start diagnostic and the responding mechanic will get it diagnosed and repaired for you. Please let us know if you have further concerns or questions as we are always here to help you.

Car makes thudding noise and shudders at low speed
ANSWER : Your car seems to have what is called a "limited slip" rear end which controls the amount of power coming from the drive train to ensure that the power is evenly distributed to both wheels. The limited slip clutch packs will chatter a bit when it is low on fluid or the fluid needs to be changed. I would recommend having an expert from YourMechanic come to you to have this shaking issue diagnosed and repaired properly.

Why is my car making this rattling noise?
ANSWER : Hi there. The rattling noise could be the drive belt or pulley that is loose when not under a load. When turning the wheels or on highway driving conditions, the noise may not be there for the engine is under a load. Try turning on the air conditioner and see if the noise goes away. If so, then the tensioner could have a weak spring.

Billing question was sent to CS for the cost of diagnosing a rattling noise on the engine and the cost of replacing the parts after the diagnosis of a 2000 Toyota Corolla with a L4-1.8L engine.