Please tell me you found out the problem!! I have a 2010 Honda fit base, and its doing the same exact thing!! I replaces the serpertine belt, the belt tensioner and its still making the noise! I took it to 3 mechanics and they all dont know whats wrong with it.

 

have you figured out the problem on the car? If you remember? My car is doing the same exact thing and my wife is annoyed of it and i took it to 3 diff mechanics

 

Did you try and tighten up the heat shield on your exhaust manifold?

 

never guessed it will be the heat shield, but i will give it a try

 

After listening to this sound clip.. It is not the belt or anything outside in the engine bay.

To me it sounds like the blower motor. My reasons for this is I can hear the car accelerating, and the chirping sound has no correlation to engine speed accelerating or decelerating with the chirp being a consistent pattern.

First try turning off the blower motor (air conditioner fan speed to off) and check if the sound is still there..

If the sound is not there then it is most likely the blower motor. Then turn the air conditioner back on (speed 1) and see if you can hear the sound again.. that will confirm the culprit.

You can do this sound check without actually driving the car. Sit in a quiet place with radio off.. Turn off blower speed .. listen for sound.. Turn on blower speed to "your" normal use. Check for sound.. If you can hear the sound once it is on again.. change blower speeds to different speeds to see if sound goes away.. or increases. Most likely you will not hear it on 3 or 4 (max). But more so on 1 or 2.. as the rpm is lower and cause more sound issues at the lower speed.

 

yeah it wasnt the heat shield

 

i will check this out, never would of guessed blower motor, people been telling me to use lucas oil in the car and it will help and nothing changed, changed out serpentine belt and belt tensionor, changed spark plugs, and all 3 mechanics cant figure out the problem.

 

The reason I mention the blower motor is that I have a 2021 Toyota 4Runner with less than 20,000 miles on it.. One day while waiting for my family, I was idling in the car with the radio off.. I could hear the exact same chirping sound coming from somewhere under the dash area. It took me a few minutes to try to figure out this chirping sound.. Then I decided to test the blower motor to see. I turned the blower motor off and the sound stopped.. I turned the blower back to 1 and confirmed that the sound was back.. I then turn the blower speed up higher and the sound stopped.. It only seemed to happen with the blower motor at the lowest setting.

 

Most mechanics will not find issues that only the owner will notice.. They will see obvious issues such as mechanical or something that they can see with their scanner. However they do not own your car and will not pick up those subtle sound nuisances that annoy the owner of the vehicle as the owners are driving the car everyday and know the car on a "personal" level. Once someone on the outside steps and attempts to diagnose a sound issue its very tough for the mechanic to be "hearing" the same issue that the owner does. Everyone is different one persons hearing perception may differ from the next guy as well as their color perception.

I had a friend who swore to me that he had water inside his Acura Integra, he had me strip out the entire interior to a shell to find this water swooshing sound.. Once the car was basically stripped of all its interior panels, he could still hear this swooshing sound.. When I pushed down on the car to simulate this "swooshing" sound.. only for me to tell him that what he was hearing was the gas in the gas tank...

 

i bought a new blower motor, and installed it myself, and drove it around, at first i didnt hear it until i was almost home, then i heard thr chirping noise again sadly its not the blower motor

 

Sorry to hear that, you could have tested with the blower motor set to off and test drive to check for noise without having to spend the time and money to replace something you didn't need to.

 

all good, when i replaced it, the old blower motor was badly dusty and maybe it was good to replace it, but still having the noise

 

ok it chirping noise is from a loose spark plug
hard to believe but 100% true

 

i will get it checked out and let you guys know

 

I drive a '09 base Fit A/T, 210K happy miles. I have a chirping squeak sound which only occurs during cooler weather (<50F or so). It varies with RPM, and goes away after the engine is fully warmed up to operating temp. No roughness or misfires, plugs are not loose. It sounds like the belt tensioner idler.

 

Hello,

I was having the same issues and what ended up working for me was replacing my spark plugs and ignition coils! Spark plugs 2&3 were basically just floating in there not threaded in at all.

 

If the plugs have been that loose, there is a strong chance your coil packs got kinda cooked from the escaping exhaust, inspect carefully and de-grease. I use spray electrical cleaner and a couple shop towels to wipe them down. (wear gloves do outside if possible)