What are the reasons for the clutch being released too slowly and the engine stalling?

[London]

The reasons for the clutch being released too slowly and the engine stalling include incorrect driving operation and improper adjustment of the engine's air-fuel ratio. Below are detailed explanations and solutions: 1. Incorrect driving operation: Releasing the clutch too quickly can cause the vehicle to shake, significantly increasing the likelihood of stalling. In this case, you need to release the clutch slowly or step on the accelerator to increase power. Solution: You need to step on the accelerator to better match the engine speed with the vehicle's speed; poor coordination can also lead to stalling. 2. Improper adjustment of the engine's air-fuel ratio: When the clutch is pressed, especially when transitioning from a no-load state to a load state, it can cause unstable engine speed. Common engine faults include poor performance in one of the cylinders, such as damage to the ignition coil or spark plugs; insufficient fuel system pressure; excessive carbon buildup in the throttle body, leading to sticking or inaccurate measurement of air intake; failure of the air flow meter or intake pressure sensor, or leaks in the intake system causing inaccurate air intake. Solution: In this case, a detailed inspection at a repair facility is required.

[DiHarley]

I've been fixing cars for years, and the issue of the clutch releasing too slowly causing stalling is all too common. Most of the time, it's because the clutch friction disc is worn out, reducing the engagement force. When the release is too gradual, the engine load spikes but the torque can't keep up, causing the RPM to drop and the engine to stall. Another possible cause lies in the hydraulic system—leaks in the master or slave cylinder can make the pedal return sluggishly, requiring more force to release the clutch and inadvertently prolonging the release process. To diagnose this, start by checking if the clutch fluid level is low or if there are air bubbles; bleed or top up the fluid if needed. Also, don’t forget to inspect the pedal travel—excessive play might indicate worn components. I’ve seen many cars end up in the shop for this. Addressing it promptly prevents further slippage and wear, and for safety’s sake, getting it checked at a reputable shop is always a good idea.

[DelPaige]

When I first got my driver's license, stalling was a common occurrence. Releasing the clutch too slowly often caused trouble, and the reason is quite simple: the engine's power at low RPM couldn't support the slow engagement of the clutch. If you release it too gently, the vehicle's resistance increases, and the RPM naturally drops. Later, I learned to balance it by lightly tapping the accelerator while slowly lifting my foot to avoid that dragging force. Additionally, I checked the vehicle—if it's an older car, the clutch disc might be worn, causing the release action to drag and prolong. Developing a habit of keeping the pedals clean and preventing dust from jamming the linkage mechanism can also reduce this issue. Safety is crucial; stalling in urban traffic can be dangerous. I recommend that beginners practice more in neutral to get a feel for gradually mastering the acceleration process.

[LeMaverick]

With my years of driving experience, slow clutch release causing stalling is often due to aging vehicle issues, such as worn clutch assemblies or hydraulic system failures, where gradual release can't handle the engine's load on the car body. Last time I drove a ten-year-old car with this issue, inspection revealed a leaking slave cylinder causing delayed pedal return – after repairs, the problem disappeared. For prevention, regular clutch system maintenance is crucial, especially monitoring fluid levels and wear components; daily starts should be moderate, neither too abrupt nor too sluggish. Stalling not only embarrasses but also wastes fuel and harms the car – developing a habit of quarterly clutch checks can save trouble.