Why does the turbo car's acceleration feeling disappear?
3 Answers
Turbo car's acceleration feeling disappearing may be caused by the wastegate valve damage of the turbocharger, which prevents the turbo from building positive pressure. The turbocharger uses the exhaust gas discharged from the engine as power to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller. The impeller compresses the fresh air sent from the air filter pipe and then sends it into the cylinder. The turbocharger is driven by the engine's exhaust gas and consists of a fresh air boosting end and an exhaust gas driving end, each with an impeller. When the compression turbine pressure is too high, the pressure will push the trigger to open the exhaust turbine valve to reduce the air pressure to prevent over-boosting.
The sudden loss of turbo car's acceleration kick? Common issues may include increased turbo lag, meaning there's a delay of a few seconds after you press the accelerator before the turbo responds, resulting in weak acceleration. This is often due to worn turbo blades or damaged shaft bearings, leading to decreased boost efficiency. A clogged air filter is also a major problem—if the turbo can't draw enough air, the boost effect naturally weakens. Having driven turbo cars for ten years, I've encountered similar situations; after inspection, it turned out to be aged spark plugs that had burned out, causing incomplete engine combustion and insufficient power output. Insufficient or degraded oil affects lubrication, making the turbo prone to overheating and seizing—I recommend checking oil level and color monthly. Additionally, vacuum hose leaks can cause boost pressure to escape; spraying soapy water on the hoses to find leaks is a simple trick. Faulty sensors in the electronic control system, such as a malfunctioning MAP sensor sending incorrect signals, might also cause the ECU to limit power. In short, don't ignore the loss of acceleration kick—it signals your vehicle's health. Timely repairs can prevent bigger damages, and avoid frequent hard acceleration and sudden braking during daily driving to extend turbo lifespan.
The lack of acceleration kick is really frustrating, which I've experienced with my turbocharged car. Possible causes include increased turbo lag making the boost response sluggish, or a faulty turbo leading to insufficient boost. A dirty air filter can easily clog the intake and needs frequent replacement. Worn-out spark plugs with carbon buildup weaken ignition and affect combustion efficiency. Insufficient engine oil leads to poor lubrication, causing the turbo to overheat—I've heard my car whine from this. Check for leaks in the intake piping, especially at seams for cracks. Transmission issues like jerky shifts can slow acceleration. If any warning lights appear on the dashboard, scan the codes immediately for clues. Regular maintenance is crucial—I change the oil and filter every 5,000 km. If acceleration feels sluggish while driving, pull over to inspect. Safety first; don't wait for a major breakdown.
