Q: My clutch pedal is extremely "light" and gears won't go in.

asked by on

I went to turn on my car while it was on neutral, i heard a VERY LIGHT sound coming from the pedal but i paid it no mind. a minute later after the car was warmed up, I went to press the clutch to go into first hear and the pedal was SUPER SUPER LIGHT, and my gear did not go in at all, it was as if i was not pressing the clutch. I turned the car off, and tested my gears with the engine off, the gears went in without a problem. i then tried to turn the car on while on first gear (with the clutch pushed in) and it sounded like it wanted to start but it did not start. The pedal is very soft, it goes down about 75% of the way EFFORTLESSLY, and the last 25% takes the slightest amount of effort to push down all the way. Im thinking its it CMC? any suggesting on something else that it could be? thanks for your help! the car is a 2008 civic si model 6 gears.

My car has 104000 miles.
My car has a manual transmission.

There are a few possibilities; you either have a problem with the hydraulics, a mechanical problem with the clutch, or a transmission fluid leak.

  • Hydraulics: When you push down the clutch pedal, the clutch master cylinder (CMC) uses hydraulic pressure to push out a rod on the slave cylinder. This is the hydraulic portion of the system. It is very simple: The rod pushes on a steel lever that in turn pushes in the pressure plate to release the clutch disc. The hydraulics are fully accessible to diagnose without any major disassembly.

  • Mechanical problems: If the hydraulic portion of the system is found to ok, the problem lies in the clutch disc, pressure plate, or release bearing. The transmission needs to be removed to service these parts.

  • Transmission fluid: Check the transmission fluid level in the reservoir. Follow the hose coming off the CMC to the slave cylinder and look for fluid leaks. If there is a leak, that is the issue. If there are not, have a helper watch the slave cylinder while the pedal is pushed down. If it does not move, the CMC is at fault. If it moves, (it should move about an inch,) the problem is mechanical.

I would recommend an inspection of the clutch pedal issue by a qualified mechanic for a proper diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My clutch pedal is extremely "light" and gears won't go in.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What Do Transmission Error Codes Tell You?

Using transmission error codes is a necessary procedure for a transmission technician since automatic transmissions have been computer controlled for over 20 years. The transmissions currently in use are very different to diagnose and repair than transmissions from decades ago....

Q: No spark on cylinder 1 and 4

Before considering the replacement of the PCM, return the coil pack to the parts store and ask for it to be tested. It is not uncommon to receive a faulted new part. Spark has to travel from the coil, through...

Q: What will keep the remote door lock from working?

The remote door lock allows you to lock or unlock your vehicle from outside of the car. However, there are a few things that will keep the remote transmitter from working: 1. If you are not within range of the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...