I have tried to locate the source of the noise without any luck. A worn CV axle, worn brake components, a power steering fluid leak are the major causes of producing a grinding noise. Your aircon may be just fine. While driving, you hear a low-pitched hum. I need to know why this metering block is failure is happening. OK, this may be a very normal noise but one that none of my previous cars had. This may account for the AC not blowing as cold as it could. You park your car, turn off the ignition and start walking away. Start the engine and watch the belts. Service Tip-The canister pump module performs the EVAP leak check. Radiator Pressure Tester Kit $161.95. What makes you think it's the aircon? Low rumbles from the tailpipe, a soft rhythmic hum from the engine compartment, even a slight thunk sound when you first turn on your air conditioner--these are all good news. Vehicle: 2017 Tacoma DCSB MG OR 4x4. Air bubbles can be the second reason. As you accelerate, the noise gets louder—maybe it sounds like an airplane taking off—but after a certain speed the volume is consistent. And if you could still hear whistling even after the vehicle is turned off the problem could be the car's radiator pressure cap. Here's what happens As you drive, the engine and all the parts around it start to heat up and expand. The noise on mine doesn't start until the key has been turned off for two minutes and by then I'm usually long gone from the car. Sometimes the drivers hear grinding noise while turning the car. Thank you for this thread. You will hear this sound when you are parked and turn the steering wheel (engine running). Air in the Heater Core: While the engine is running coolant is being pushed through the heater core.When air bubbles get trapped they can make a gurgling sound in which case the front or the rear or the front of the car must be jacked up to pure the bubbles from the core. - Answers That sound is either one of two NORMAL things: 1. When I turn my car off, for about an hour after there is a pinging sound comign from the engine bay, it kinda sounds like little ball bearings dropping into a hollow metal pan. This is the sound of a fuel. Hoses will deteriorate and fracture with time, and high-pressure conditions in the cracks and holes will produce hissing sounds. 3 Engine Shut Off Without Warning problem of the 2007 Dodge Caliber. I didn't mess with any intake parts. I know its nothing bad because I heard the same thing in my old 99 grand prix..I feel like it is oil dripping in the pan but Im not sure. Drive around the block. 2 weeks later the same thing happened. If it becomes clogged due to debris, it can allow the water to collect in your dash. 1 - 13 of 13 Posts. My last two cars were both CRVs, '03 and '07 and neither had a noise like this but then . Nov 5, 2017 at 3:52 PM. Sounds like air rushing out of a punctured tire. It sounds like it is coming from right at the intake manifold. Some parts of your engine can create a hissing sounds and be perfectly normal. Minutes after that got a warning . Remove your pcv valve (just pull it out).and shake it..if your car is making the same type of rattling noise, than you know its your PCV valve. The motor can also fail and cause a clicking noise. Yesterday I had the oil changed and a new air filter in my 2004 Honda Accord LX. Grab the steering wheel and crank the front wheels to one side so that I can reach the inner fender. If the noise is more like whining while you turn at low speeds, the most likely culprit is power steering pump damage. Any longer and the engine will overheat. Sep 20, 2012. I haven't pinpointed where it's coming from but I think it only happens after I use the A/C. After the engine is shut off, a small motor runs and pumps air into the fuel tank. I checked and there was a puddle of antifreeze on the ground of the garage. The compressor works like a pump to compressor refrigerant. 14. The sound when you turn bigger cars off means they're cooling. In some scenarios, you may hear a grinding sound, which is associated with leakage or worn-out bearing. If you hear crunching or clicking noises when turning at high speeds, the most likely problem is a bad coupling at the CV joint. #1. Male. Even after that, if the temperature is not less than 35_C (95_F), the time should be extended to 9.5 hours. . Q: When I shut off my vehicle after driving for a while (the amount of time doesn't seem to be relevant), I get this popping noise from my fuel tank, usually within two to four minutes. So finished my timing belt job, engine runs great. This creates the burning smell from . It sounds like you may have a faulty water control valve, which may be prohibiting the flow of coolant properly through the heater core from the motor.Generally, when this happens you may notice the heater may not work or that coolant is leaking. Came and parked in the garage, got out and started hearing a hissing noise. This cycle is sometimes audible inside the car, causing a clicking noise. While AC pump noise is totally normal for your car's air conditioner, hissing at any other point may give you reason to visit your mechanic, just like a buzzing noise. carefully see if you can find the source — but be careful not to burn yourself. If all is in spec, the computer gets a signal that there are no leaks. A worn out CV axle creates a sound on tight turnings. it's the leak detection pump. When you make a turn, the noise gets louder; but if you turn the other way, it disappears. Hence the sound. One of the signs of a bad AC compressor is a sloshing sound. Everything is smooth, but after I kill the engine, there is a 'puff' of sound like a vacuum is being released. I even looked underneath the engine to see if there was fluid leaking, but I did not see any. When your engine keeps running after shutting it off, you'll hear it firing or coughing. Almost like a gas leaking noise. Since the hot parts are made of different materials (aluminum and iron, typically,) with differe. coming from under the vehicle for several minutes. If you find out that the noise is coming out because of a worn-out compressor, replace it. Along with concerning noises, you might also noticed diminished engine performance. Nov 26, 2006. Loud humming sound when i accelerate but no noise when it idles. if you suspect a leak, . Its free and worth a try. When all the water proceeds into a vaporous state, the sound stops. The car was towed to the shop and the starter was replaced. Razer L33T Giveaway Contest On your car, the power steering fluid reservoir is on the passenger side fender near the rear of the engine bay. 7. May 1, 2011. One of the most straightforward problems to fix that cause noise while you're steering is a power steering pump without enough fluid. The first is excessive water leaking outside the car. After parking and turning GL off there is a hissing sound of air being released coming from wheel well. The reason for the burning smell in most cases is the clutch is released too slowly, and the clutch disc will "slip" against the flywheel. A vehicle can make a few noises while turning. evaporation leakage check, and it does not indicate a malfunction." When I turn the car off and get out I hear a hissing noise coming from the front of the car. Your first examination after confirming that there's a hiss someplace should be visual. It determines how much amperage is required to build X pressure in Y time. Turned the truck on except the engine, then back off, and the humming stopped. Another reason I'm reluctant to have it fixed is because, after owning probably 40 cars in my 70 years, this one has caused me more grief than all the others combined; it's just one thing after another, but I'm . Step 3. It could also be caused by similar damage caused by a hole in one of the car's hoses, which will pull in air and cause noise. One of the signs of a bad AC compressor is a sloshing sound. If you wish to try that, make sure the engine is cold, remove the belt, and drive the car for under 10 minutes, before replacing the belt. It seems to coming from near the radiator, closer to the passenger side light. Apr 5, 2020. This check is done approximately five hours after the engine is turned off. The other night i was at a stop sign and as i started to proceed forward, i hear a pshhhhh noise and as i proceed at 25 mph onto my street i hear gringing like my brake pads would if they were bad but they are not. That's where the hissing sound comes from. The "pinging" noise you hear is coming from the hot metal cooling under your car. Funny motor noise after the engine is turned off! When heated, the bubbles increase, go up, and burst, which causes a clicking noise. This is actually really easy to fix. Head gaskets act as a seal for the coolant system, keeping the coolant in, and other foreign bodies out—such as debris or gasses. I refilled the resevoir and started the car again letting it run for 15 mins to get the antifreeze through the engine. Turn the car "on" but do not start the engine. When mowing the radiator, you can shake the oil, and air enters into it. Depending on the type of system used by the carmaker the metering device can be an orifice tube usually located in the engine compartment or an expansion valve often located in the . When you have different metals cooling off at different rates, they sometimes "bump" into one another. It sounds like a radiator blowing off pressure. Today, however, I noticed a humming sound coming from the driver's side trunk area while the car was turned off in my garage. A couple fo minutes later there is a buzzing sound in my garage. On that same question, I get a sound like there's water dripping then bubbling in my exhaust pipe in the center of the vehicle, as well as the popping and ticking after shut off. Once you turn the car off, those metals will cool and contract. Minutes later heard a hissing/leaking sound coming from the front-left side. A leak where the cowl and windshield come together it is tack welding at the factory and then sealed at the factory. #11. When I turn the car off and get out I hear a hissing noise coming from the front of the car. A few weeks ago, I noticed that when I turned the engine off, a funny whining motor noise was coming from under the hood. You might experience two types of water leaks from your car A/C. When the car makes any type of abnormal sound,it is a matter of concern. Just like any other car part, the AC compressor wears out after some time and needs changing. This is especially true if the noise comes right in front of your car's engine. Likewise, positive crankcase ventilation (PCV) valves can tick or rattle at idle. If you have the turbo version of the car this is even more important be. If it's out of spec the MIL will be illuminated. Fill it with water until u find the leak. The pressure cap is designed to release the excess heat from an overheated coolant and there are times when the seal of the cap's rubber gasket breaks causing the air to leak out and make that whistling noise. 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