Skip the auto shop - Our mechanics make house calls

Q: High-pitched chirping noise and rattle from front of 2008 Saturn Astra

asked by on

I started hearing a high-pitched chirping sound (coming from the front of my car) when I would press on the gas pedal to accelerate. This only happens when the air conditioner is on. It has that sound like a belt might be loose. The tech reported that was caused by the engine not being strong enough to handle the air conditioner, along with everything else, all at the same time. I was told to monitor the noise, which is still persisting. Along with the high-pitched chirping noise, there is a deep rattle which is also coming from the front of my car. Can you tell me what is causing this so I will know how to get it fixed?

A: Hey thanks for writing in about your 2008 S...

Hey thanks for writing in about your 2008 Saturn Astra. It is unlikely the problem is cause by the engine "not being strong enough" to power the accessories. If the noise changes while turning the air conditioning on and off, the problem can be in the belt drive system or the air conditioning compressor. I recommend getting a second on this by another professional. A technician from YourMechanic can inspect the car noise in person and let you know what repairs are needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Gas pedal hard to press, car wouldn't move

The "stiff" gas pedal issue is most likely caused by a dirty throttle body in the air intake system. Cleaning the throttle body should relieve this symptom. The lack of "Drive" selection, unless first selecting "Reverse", could be a loose...

Q: Truck shakes, sputters, and loses power when accelerating.

Hello, I would enlist the help of a mechanic to inspect the engine because this problem could be a number of things. I would do a tune up on it's spark plugs, air filter, fuel filter and then go from...

Q: Hear clicking sound when air conditioner is on

The clicking noise is most likely being emitted by one of the actuators that control the ducts in your air conditioning system. When they go bad they often make the clicking noise you are referring to. Depending on where the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.