all crs do dat a lot. corsa would rev caus is a sml car so lghtr
Pro: you are able to change gear when your engine revs are different from your transmission revs. Con: when torque is high or the difference in revs (see above) is too big, it will slip.
Gear changes are determined after how fast the engine is turning. For each gear there are set limits for which engine revs that are allowed. if the revs go high, the transmission changes up a gear, if the gears go low it drops down a gear.
Pro: you are able to change gear when your engine revs are different from your transmission revs. Con: when torque is high or the difference in revs (see above) is too big, it will slip.
my 307cc if started in gear pulls away no revs required even up hill
It is not a fault (because it is a green light) but a prompt to suggest you change gear as the high revs or long duration at the same level of revs are uneconomic from a petrol consumption point of view. It is mentioned in the Handbook but interestingly enough the feature has been removed after Build 10 and is not retro fitable (late 2010) presumably because it annoys some drivers.
The oil pump turns more at higher revs, this is then producing more oil pressure, so when you change gear the revs are in a lower range so the oil pressure drops.
Because it revs low when it changes gear, an automatic gearbox should change when it is around midway through the revs, you should check this the next time you drive. Then take it too a garage and ask if they could reconfigure the gearbox.
If the revs decrease as the speed decreases (in 3rd & uphill) then its not slipping, you don't need a new clutch, but if you are in any gear and the revs are increasing while the speed is decreasing, then the clutch is slipping.
You could have loose trim panels whose resonant frequency matches that of the engine when running at 2500 revs. My corsa 1.7di vibrates a bit at that speed, particularly the rear view mirror which makes things behind appear blurry.
no revs
change the tranny fluid evry oil change it might straighten out with fresh Honda transmission fluid
The revs vary for various speeds, due to variables such as loading, road conditions, weather (windy/flat calm) and the mechanical condition of the vehicle etc. The manufacturers select the gearing to give the best power to economy ratio at normal speeds. This equates to around 30mph in fourth gear and 56mph in fifth gear. As to what revs this is, try your handbook, look under max torque @ ??revs in the tech specs' section.