What Causes the Abnormal Noise When Accelerating in an Odyssey?

[AveryMarie]

Odyssey may produce abnormal noise when accelerating due to excessive impurities, excessive carbon buildup in the throttle, or damage to the clutch release bearing. Excessive impurities: When the fuel pump motor is worn or contains impurities, abnormal noise will occur when accelerating. This issue requires replacing the fuel pump. Motor gear wear: Modern throttles are electronically controlled, with the valve opening and closing managed by a motor. When the motor gears are worn, insufficient engagement can cause abnormal noise. Clutch release bearing damage: Incomplete separation of the clutch disc can produce abnormal noise, requiring removal of the clutch to replace the release bearing.

[SanGabriella]

From my years of experience driving the Odyssey, abnormal noises when accelerating usually involve several key components. The most likely culprit is a loose or worn drive belt, which produces a squeaking sound during acceleration, resembling fine friction noise. Damage to the CV joints on the driveshaft is also common—especially when accelerating during turns, it often creates a clicking sound, usually caused by a torn boot allowing dirt accumulation. I’ve also encountered cases of air intake system leaks, where faster airflow generates a whistling noise, like someone blowing a whistle. My suggestion is to start the engine, have someone gently press the accelerator while you open the hood and carefully listen for the source: if it’s near the front of the engine, it’s likely a belt issue; near the wheels points to drivetrain components. Don’t delay addressing this—last time I ignored it, a failed tensioner ended up costing a lot in parts. Regularly checking belt tension and CV joint condition can prevent major repairs, but for safety, it’s best to have a professional shop diagnose it.

[LeLevi]

As a young person who often helps friends with their cars, I think the issue of the Odyssey making strange noises when stepping on the gas pedal is quite common. If the sound is a squeak, it's most likely due to wear on the drive belt or tensioner, causing the belt to slip and produce noise; or the intake might be clogged or leaking, with blocked airflow creating a hissing sound. If it's a clicking noise, it could be a damaged CV joint, which becomes more noticeable when turning or accelerating—fixing the axle sleeve early saves money. I've also heard that insufficient oil pump pressure can cause a humming noise, indirectly putting extra strain on the engine. Try different scenarios: listen for the noise when lightly pressing the gas pedal during a cold start to see if it occurs frequently; compare the sound at high speed versus low speed—if the noise only appears at specific speeds, it helps narrow down the issue. Checking the oil level is also crucial; if it's low, the engine bears more load and is prone to odd noises. Get an expert to diagnose it early, unlike me who waited until the noise got worse and affected driving safety.

[HavenLee]

I use the Odyssey to pick up my kids, and the strange noise when stepping on the gas pedal is really nerve-wracking. Common issues include a loose engine belt, with squeaking sounds that distract attention; or worn transmission components like a damaged CV axle, which can produce a clicking noise during acceleration. Safety is paramount, so scheduling an immediate inspection is crucial. Last year, my car had a similar strange noise, and it turned out to be a cracked exhaust system leaking air, causing a hissing sound when stepping on the gas. A simple self-check can be done: after starting the car, lightly press the gas pedal and observe where the sound is coming from—near the engine area or around the wheels. Don’t let minor issues escalate into major problems; timely repairs can prevent breakdowns on the road. During regular maintenance, pay extra attention to the condition of belts and axle sleeves—prevention is better than cure.