Car Sounds
Heating AC and Engine Cooling
Air Conditioning and Coolant

What is the chirping noise coming from when you turn your ac on then goes away when you rev your engine then comes back only when ac is on?

373839

Top Answer
User Avatar
Wiki User
Answered
2011-09-14 08:54:14
2011-09-14 08:54:14

I believe that your alternator may need to be bench tested - when your a/c comperssor turns on (when your a/c turns on) this is a larger draw of required volts for your car, and therefore a larger load on your alternator. I believe that an alternator "struggling" to keep up with "demand" can cause the alternator belt to squeak. It could also be something as simple as a belt slippage - there is extra tension on the belt when another accessory is being used (your a/c). Check the condition of your belt. Think of paint finishes for a moment. If your belt has any "shiny" or "glossy" (called glazed) appearance, or has any cracks in it, then simply erplacing your belt could solve this. But if your belt is in good shape (has a dull or "matte" appearance), then have your alternator bench tested at a reputable auto parts store/mechanic. Another test you could do on your own is to start your car, then while it is running, disconnect the positive lead from your battery. If your alternator is running well, it should easily run your car on it's own w/out the battery. If your car stops running after disconnecting your battery, then your alternator is absolutely the culprit, and needs to be replaced. I am not a mechanic, but these are a few simple checks you can try yourself - good luck!

Belt or A/C clutchTwo other possibilities:

1. Most likely -- The belt is wearing out, getting loose, etc. Check the belt for glazing (makes it look shiny). Check also the strength of the belt tensioner.. (Take the key out of the car for this check!!) If you can pull the belt more than an inch toward you, the belt and / or tensioner may be bad.

2. The A/C compressor clutch is wearing out. This is not as likely. This would have to be repaired by a professional.

001
🙏
0
🤨
0
😮
0
😂
0

Related Questions


if it was like my 99, then a belt was worn out, and will cause a chirping noise, if it is in the engine compartment, it is very likely to be a belt

If the chirping noise speeds up as the truck speeds up, check the u-joints in the drive line.

A Cricket Or a Cicada makes a chirping noise.

I need to know more, what model, what engine? It could be a belt, could be a pulley, could be a cam synchronizer.

When Exhaust brake is on squeak noise comes from the engine?"

Noise coming from engine in Oldsmobile Cutlass could be as a result of an oil leak in the rear of your engine. This makes the gears to wear off leading to severe knocking noise.

If your 2002 Ford Sport Trac is making a chirping noise when you do a cold start up, this could mean that you have a problem with the engine. You should have it looked at by a mechanic.

Some toads and frogs do make a chirping like noise. It is the males that make this sound when they are scared or calling for a mate.

Chirping is the little tweeting noise a bird makes. Here are some sentences.The baby chicken was chirping for its mother.I could hear the chirping of the birds in the trees.Can you make your canary stop chirping so loud?

Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.

I had the same chirping noise. My chriping was the belt and/or the power steering pump. I replaced both. no noise now. I would first replace the belt, then the pump

they usually squeal really loud or they do a chirping noise.(chirping noise is very rare. my guinea pig only did it once. that was when she first met my dog)

where is the humming noise coming from? if it's coming thru the speakers and matches the rev tone of the engine, then you have a bad ground in your stereo.

does it have a ecotek valve fitted?

engine noise coming thru the radio is caused by a bad ground somewhere so instead of chasing that you go to a car stereo shop and buy a noise filter that hooks up to the ground wire coming off the radio.

whistling noise from engine will be caused by a leaky gasket,sucking air. this is usually the intake manifold gasket

Bearing noise is usually deeper and comes from farther down in the engine. Lifter noise is more of a ticking and is up in the engine heads.

Try "Related Questions" below - I had finally found some information about unhappy bird sounds coming from the engine compartment - hopefully it applies to your problem (please report back and update/edit this answer with your findings!!)

If it's a "chirping" noise, then you don't have the belt tight enough.


Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.