Symptoms of Clutch Slippage

[SanAlana]

Symptoms of clutch slippage: 1. When starting the car, fully releasing the clutch pedal does not allow the car to start or makes starting difficult. 2. During acceleration, the vehicle speed does not increase with the engine speed, and the engine's power is not fully transmitted to the drive wheels, resulting in weak driving force. 3. When fully loaded and going uphill, slippage is more obvious, and in severe cases, a burning smell from overheated friction linings may occur. Causes of clutch slippage: 1. The clutch pedal free play is too small or non-existent, causing the release bearing to frequently press against the diaphragm spring, keeping the pressure plate in a semi-engaged state. 2. The diaphragm spring's tension has weakened. 3. The friction disc is excessively worn, hardened, contaminated with oil, or has exposed rivets. 4. Loose connecting bolts between the clutch and flywheel. 5. Improper adjustment of the release levers.

[OLincoln]

The worst fear when driving is clutch slippage, where the tachometer needle keeps climbing but the car speed won't increase, especially noticeable when going uphill - you stomp on the accelerator with roaring engine noise yet the car slows down instead. This clearly indicates worn clutch components. I experienced this recently - even starting on flat ground became difficult, with the engine screaming while the car crawled slower than a turtle, and fuel consumption suddenly jumped by 2-3 points. When I smelled burning rubber wafting into the cabin, I immediately stopped to check and found the clutch disc overheated and scorched. Continuing to drive with this issue could completely destroy the transmission - tow truck fees would cost far more than clutch repairs.

[LeAriana]

Having repaired cars for over a decade, I've seen numerous clutch slippage cases. The classic symptom is the engine roaring without the car moving. A simple self-test method: Rev the engine to 3000 rpm in neutral, press the clutch pedal fully, engage first gear, and slowly release the pedal. A normal vehicle will slightly lurch forward before stalling. If it doesn't stall at all, the clutch is slipping. Some owners mistakenly think it's engine weakness, but it's actually due to fatigued clutch pressure plate springs or oil contamination on friction discs. Last time, I fixed an off-roader whose owner didn't clean the undercarriage after mudding, allowing muddy water to seep into the clutch causing slippage. It took an $800 full clutch replacement to solve it.

[MatthewFitz]

When I was a novice driver, I used to think it was a good thing when the clutch pedal felt lighter. It wasn't until an experienced driver pointed out that I realized a shortened pedal travel indicates clutch slippage. Last time on the highway, I learned this the hard way - during an overtaking maneuver, the engine RPM suddenly surged to 5000 while the speedometer got stuck at 80 km/h. I immediately turned on the hazard lights and pulled over, finding the engine hood scalding hot with a distinct burnt smell. At the repair shop, the disassembled clutch showed its friction material completely worn down to bare metal, costing over 400 yuan just for parts. Now I perform regular clutch inspections, replacing it immediately if wear exceeds 0.5mm.