What might cause a car with a manual transmission that in 5th gear when given a punch of gas revs to very high rpms – with no power transferred to the wheels (i.e. the tachometer and speed go out of sync).
For illustration (and I'm making these numbers up), at around 2000 rpm on the tachometer, and going 60km/h "punching" the gas causes the tachometer to hit 4500 rpm yet the speed remains at 60km/h.
I would expect the revs to remain at a constant ratio to the speed, so I'm wondering what might be going wrong.
My first suspicion is a problem with the clutch, but I was wondering how I may test this or suggestions as to what else it may be.
The car I'm thinking of in question has only around 27,000 km on it, which seems like a very short lifespan for a clutch!
Thanks for reading, appreciate any insight.