Engine over reving

SOURCE: Engine Rattling

Try checking the heat shield on your exhaust system. You should have one over the manifold and one over your cat converter under the car.

SOURCE: engine revs but car doesn't accelerate

Since you did not say what type of transmission you have i will suspect the clutch is slipping if it's a manual.
If it's an automatic, it could be several things. Low fluid level...clogged filter, fluid needs to be changed..transmission serviced...weak pump, bands/clutch packs worn...etc
Good luck..i hope this helps, please rate me a fixya.

SOURCE: sluggish acceleration traction light comes on

this must be a 2.3 miller cycle. it is going into "limp home" mode. when this happens, it wont rev over about 3k, and tcs off/tcs lites come on. it feels a lot like fuel cut. probably the check engine lite is also on, and what codes are stored? most common is P1525/26 and 1540, which are the solenoids that control the abv. the abv controls boost, and when this valve is not working proplerly, the pcm stops communication with tcm, and it goes limp home. if you can locate the solenoids, they are on the back of the engine, right next to the egr valve. from right to left, you need to look at the second and forth. you need to ohm them when they are hot. normal is around 26. if they are over 30, or 0, they are bad. there are other possibilities, but this is most common

omaromid

• 332 Answers
• Posted on Feb 11, 2010

SOURCE: Vw polo maintains engine revs when foot is off the accelerator.

You need to check the cable the runs from the gas pedal to the engine, it might be rusty and need some drops of penetrating oil at the point it meets with the engine accelerator valve.

SOURCE: my car revs a lot when i accelerate and wont go any faster

clutch is slipping????