Engine knock when letting off gas. - It's a 1996 Honda Odyssey with a 2. Transmission slamming gears ? Driveshaft acting up ? Axle gears jamming up ? Thanks folks! Tiped on ifone using Tapatalk and auto Dec 19, 2024 · Other potential causes of humming noise when taking your foot off the gas pedal could include engine misfire, transmission issues, or water pump problems. When you mash the accelerator out of the parking lot, that’s when you hear an engine knocking sound. This is likely due to either pre-ignition or detonation. Only when letting off the throttle would it make the sound. Just replaced the CV axles, put on new tires, and did the alignment. It isn't repetative. Engine Knock When Letting Off Gas. It is not that drastic of a sound. Nov 6, 2024 · Hearing strange engine noises when releasing the gas pedal can be worrying and indicate a potential problem with your vehicle. Checking the Fuel System Car makes Popping noise when letting off the gas – why? The exhaust backfire is one of the most common causes of this problem. Apart from that, imbalance tires or a faulty brake pad can also create issues in the car to make it vibrate. It is important to get to the root of the problem as there is a risk of damage to the engine, making repairs even greater than before e. This article will guide you through troubleshooting engine noise when releasing the gas pedal in your vehicle. The best way I can describe it is like if you were humming, but Aug 6, 2020 · I hear a knocking sound whenever I pres the gas pedal and accelerate fast, or when I quickly take my foot off the gas. May 24, 2022 · Conclusions The ticking noise when letting off gas pedal can be caused by many things. Feels like it’s coming from the back but I can’t be sure. sounds sick. Could I have possibly got a bad batch of 93 Octane gas and it's making my engine knock around? Jul 2, 2017 · I let off the gas if coming to a stop and slow down and I’ll get a very noticeable clunk. light tranny leak. Possible causes include problems with the exhaust system, CV joints, or suspension components. It does it mainly when there is load on the engine, but sometimes does it a little when there Jan 30, 2008 · I'm used to getting launched around if I actually 'take off' and the tune kicks in, but not when the engine idles/downshifts after you let off the gas. 15 votes, 29 comments. Jun 23, 2013 · I have a rattle when letting off the gas, as you described. Incorrect ignition timing, lean fuel mixture , or the incorrect type of spark plugs can also cause your engine to detonate. But what happens when that symphony is interrupted by an unwelcome noise, a grating or whining sound that emerges when you lift your foot off the gas pedal? This seemingly minor issue can be a cause for concern, potentially signaling a problem with your vehicle’s drivetrain or Troubleshoot transmission noise when letting off gas with these tips. I can most certainly feel it through the truck. It is one knock as though the engine is hitting the back of the engine bay (only way to describe it. Just about to hit 60,000 miles. From checking common causes to identifying See full list on carcarehacks. This is an '05 with the electronic throttle. 1. If a belt is loose, worn, or glazed, it can squeal when the engine is under load, such as when accelerating or letting off the gas. What can cause this sound cuz I took it to the mechanic and all mechanical parts looks good?? Jun 17, 2018 · One of you said that it could be something engaging or disengaging when you let off the gas perhaps? Also. Jan 6, 2010 · Re: Knock sound when accelerating and letting off gas! (Evenodds20) Could be one of the engine mounts. Aug 6, 2019 · How engine knock occurs Say the clock has struck 5:00 and you make a bee-line to your truck and take off for home. Troubleshooting a Humming Noise When Decelerating. An exhaust can backfire when it starts leaking. . Learn why this issue occurs, how to fix it and what to look for in a transmission repair specialist. You may have a worn mount, suspension, or steering problem. 7T recently, and I actually don't think it's the turbos. At this level of oil consumption, it's almost (not far) as much as driving an RX8 and putting oil in the gas tank Jan 22, 2011 · A distinguishing feature of worn rod bearings is a knock that is almost inaudible when accelerating but much louder when you get off the gas and the motor is slowing down. Any of you guys have an idea? also got my new magnaflow 14" on today. I hear it at low speeds 25-40mph. Or ping. A mere inspection of the exhaust system like the pipes, bolts, and gasket will help you confirm the cause of this problem. The cause of such noise can range from a simple loose heat shield to a more serious issue like a failing muffler. In most cases, the cause is oil pressure, exhaust leaks, spark plugs, or valvetrain. the sound comes from the engine compartment on driver side and not directly from the gas ped Jul 28, 2010 · When I get over 60 mph and let off of the gas there is a grinding/rattling noise. This sub is dedicated to the Ford f-150 and discussion of anything pertaining to it. I say this mainly because it ONLY happens when I take my foot off the gas in the low-mid RPM range (1000 - Jun 12, 2002 · On my 360 when i have it at high rpm's and let off the gas when going down the highway or something, it makes some sorta popping noises that sounds like exhaust escaping but from the engine compartment. They’re effectively the same phenomenon, but they occur at different Jan 21, 2011 · A6 / S6 (C5 Platform) Discussion - Whine when foot taken off gas pedal / during engine braking? [LONG] - I've noticed a new whining noise coming from my 2. These belts drive various engine components, including the alternator, power steering pump, and air conditioning compressor. How to Diagnose a Car Vibrating When Letting Off Gas? Knocking/tapping noise when letting off the gas. Diagnosis: Clicking Sound When Letting Off Gas. 2-liter When you let off the gas pedal and the car suddenly vibrates then the problem can happen because of worn-out or damaged engine mounts or a loose lug nut. May 30, 2017 · Q: recently, started hearing clicking/tapping? noise when I acerbate, seemed would happen when accelerating at a low speed, (5-25 mph) sometimes really loud, and lacks as much power; when I let off gas, the clicking reduces. 89K subscribers in the f150 community. It goes away when under load and when braking. When the bearings become worn, they can cause a Mar 13, 2025 · Clogged air filter: A clogged air filter can restrict airflow to the engine, causing it to vibrate when letting off the gas pedal. Bad oxygen sensor: A faulty oxygen sensor can cause the engine to run rich or lean, leading to vibrations and a rough idle. It is very loud, but doesn't seem to affect anything as far as power/performance. ) There isn't much sound, but I can feel it. Mar 18, 2025 · A grinding clicking noise when letting off the gas in your car can indicate several potential issues. It’s loud. A grinding or rattling noise when you let off the gas could indicate several issues with your vehicle. Dec 27, 2024 · Grinding, Rattling Noise When I Let Off The Gas. If Sep 3, 2023 · Now the engine start to make noise like a tiny rod knock backround noise. Clicking sound when letting off the gas from an automobile is a common issue and can be caused by a number of different things. If I press the gas pedal it goes away, but as soon as I take my foot off the gas it is back. Some potential causes of this noise include: Worn-out wheel bearings: The grinding or rattling noise can be a sign of worn-out wheel bearings. Jun 27, 2013 · Drove the car to Nags Head this weekend and about 3/4 of the way there when I got into some 45MPH zones, I noticed a clunking when I would let off the throttle only. May 14, 2009 · Recently whenever i accelerate for a little bit and then let off the gas there is a loud clicking noise coming from underneath the truck. Once my speed gets below 60 mph the noise is gone. They create a knocking noise when taking the foot off the. Sep 30, 2009 · Recently I have been hearing a strange noise when taking my foot off the gasespecially when coasting where I am only lightly pressing on the pedal. com Mar 13, 2025 · Squealing Noise A high-pitched squealing noise often points to a problem with your belts. Apr 25, 2022 · The ticking noise is caused because your car's transmission may be worn or may be facing an issue with the bearings when letting off the gas. Sounded like it is Feb 9, 2016 · If you hear a dry grinding or whining noise when letting off the gas in your Jeep, especially at highway speeds, start by checking your differential, transmission, and transfer case fluids for metal shavings, which could indicate bearing damage. In order to diagnose the issue and get to the bottom of it, there are a few potential fixes and things to look out for. When you let off the gas, it goes away. I cant figure out what it is. May 15, 2014 · When I take my foot off of the gas, as well as brake at times, the engine seems to knock. The rattle has continued, even after having the following components replaced: Exhaust (including cats and back), transmission, flywheel and long block engine replacement. The knocking has been going on for some time now. Mar 13, 2025 · The symphony of a well-tuned engine is a thing of beauty, a smooth and harmonious blend of mechanical precision. zzkkbst rvyh gepwdevk lwsdx fiyc flghhg jlo roqq zivydpgu kcx