Since you are at the vehicle determining what is causing the sound should be easier. Below are some possible reasons for the noise you are hearing.
All credit goes to both websites.
Please see the information from the website link below. It is difficult determining what type of problem it is with the recording. The information below should help narrow the problem down.
The Car Noises Diagnosis credit goes to carproblems.com
Car Noises Diagnosis
Almost all of you experienced this thing that cars and vehicles create variety of noise that is one of major car problems. When cars and vehicles create noise, it means there is something damage in the components of cars and vehicles. Car maintenance can be expensive for you so you must try to diagnose most of the car problems yourself. You can learn diagnosing noise problem of cars by reviewing the information given below. Here we will discuss some noise problems that most of cars have with possible problems and their solutions.
Incorrect ignition timing, faulty ignition and leaking valves can be possible problem of this sound of vehicle. Have ignition and check a valve properly is the right way to solve this problem.
Clatter from engine
This sound problem may be caused by badly adjusted valves and insufficient engine oil. You should add oil to the engine or refer to it towards car mechanic for proper maintenance.
Whining or chattering from engine
This sound problem occurs if camshaft drive belt is tensioned badly. To solve this problem, you must refer your vehicle to professional mechanical as soon as possible.
Rattle when accelerating
Causes of this sound problem include wrong grade of fuel, engine overheating, incorrect ignition timing or other ignition faults. You should use higher grade of fuel to get rid of this noise problem of your car. Also refer it to mechanic.
Knocking with engine which increases with engine speed
Worn camshaft can be a major cause of create this noise problem in the vehicle so you must take your vehicle to mechanic to solve this noise problem.
Screech when steering
Power steering belt slipping can be a cause of screech when steering. You need to check it properly and go to mechanic for proper maintenance. However adjusting the belt properly can solve this sound problem of car.
Moan from engine when steering
When power steer fluid level is too low, this sound problem usually occurs in the vehicles. So you just need to top up the fluid level for this problem.
Roar or rasp under acceleration
Blown exhausting is the main cause of occurring this noise problem. So keep check on exhaust to reduce this noise problem.
Squeal or groan when braking
Brake components of car are worn or defective, this sound problem can occur with your vehicle. Referring the vehicle to mechanic is the best option for proper maintenance.
Hiss from engine
This is another sound problem that vehicle creates often and it caused by leak from coolant, air or vacuum. It is better to go to the mechanic for the solution of this sound problem of car.
Clicking from wheels
Loose hubcap and stone in hubcap can cause this noise problem with your vehicle so you need to tight the hubcap or remove stone from it to get rid of this sound problem of your car.
Above are the most common sound problems of cars that every car owners have to face on and off and most of you may wait for this useful information to solve this ultimate problem of vehicles.
The Car Noises Diagnosis credit (below) goes to cartalk.com
Noises you hear coming from the engine compartment/front:
Bad Bearing in Timing Belt Tensioner: woh woh woh woh
Bad Turbo: boooOOOOOOooo
Boiling Coolant: bllgh blllgggh blllllgggghh
Brake Booster Failing: hissssssssss ssss ss
Clutch Release Bearing on the Way Out: jee je je jeee
Clutch Screech: screek, screek, screek
Connecting Rod that went through the Engine Block: clicketta clicketta clicketta
Engine Knock: tuckaTHUCKtuckaTHUCKtucka
Engine Reving Up and Down: vooRRRR, vooRRR, vooRRR
Fly Wheel: gurrEENK, gurrEENK, gurrENK
Loose Belt: YEEeeEEeeEEeeEEeeEEee!
Low Coolant: bwwob bwwwobbubwub
Misfire: puhVRooPuhHoo puhVROOpuhHOO
Power Steering Pump Going: nnnghuh nnnguh
Sticky Lifters: dicka, dicka, dicka, dicka
Transfer Case on the Way Out: glaghhghgghhh woongghhh
Water Pump: grrgula, grrgul,grrgula, vum wum wum wum wum
Weak Battery: wurrrrRRRRrrrrwuRRRrrr
Wiper Transmission Sound: eee eee eeee eeee
Vacuum Leak: vwishhhhhhhhhhhhhhhhhh