2001 Nissan Sentra "engine revving down driving" Questions

...engine cold pressurize cooling system with spark plugs removed.look down into holes with flashlight after about ten minutes.....im betting youll see a puddle of coolant on piston...usually its cyl# 2 ...

...engine cranks, almost starts to idle in normal range, but drops very low and dies, then will only crank for awhile. leave the car be for awhile, and it starts again fine. Then, after this starting ...

...all codes that show are appartently due to highn engine revving. Any way to turn down the idle? This generally indicates a vaccumn leak, or sticking idle air control valve. it might be ur ecu

Engine revving at idol and very slow to respond When driving home this morning, the oil pressure gauge and engine started revving at idol and were very unresponsive to the gas pedal. If I floored it, ...

...engine over-revving til i got to where i was going. Anyway I was driving around the town (with the normal urban speed limits 30mph/40mph) where I was and was being really careful not to rev the arse ...

...engine IS revving up and down.. you need to have a professional to look at it..this could cause damage if it decides to rev real high or/and then stop!! hmm sounds more of a engine problem though ...

...revving noise that sounds like a motorcycle while i am driving down the road? Sounds like it's coming from the back end but I am not sure. I always think it's another car and then ...

engine is revving from the time that you start it, until the time that you shut it off? This would be more likely, as depressing the clutch doesn't really have any effect on the engine, other than dis

...the OBD codes read as should give code for the faulty part (hopefully), it is a common faulty with this engine , try this site for more info from those who have had the same happen Over revving ...

...revving after driving for awhile it slows down..but today the engine light came on..what should I do or what do you think is wrong? have it checked either at a local shop or dealer my scan tool reads ...