It is not good to rev any engine immediately after starting it. The lubrication system has not fully charged and oil has not reached all the parts immediately after startup. The oil is also thick and is not flowing as it will when the engine reaches full operating temperatures. So, the answer is Yes, that is a bad thing.
If the 1998 Olds Achieva will not rev over 2500 rpm there may be an issue with the idle control valve. A bad or unplugged valve will not let the car accelerate over 2500 RPM.
Pretty much anything that is rotating has a chance.
Normal operating temperature 650-750 RPM it should be between 0.5 and 1
The noise is difficult to diagnose over a forum, but if the battery is charged correctly, and is hissing as you put it, the starter motor may not be working correctly, get a second opinion from a garage
I Had a 1989 Pontiac that idled at 3500 rpm I changed the engine computer and fixed it
when u first start the car it will idle high, around 1.5 rpm to 2 rpm. when its warm up it should idle between 700-1000 rpm
It depends how high you're talking about. If you mean revving all the way to the red line then yes this is bad for the engine. But the rpm shouldn't exceed 4000 rpm. If it is slightly below this then it is fine.
rev limiter will only let the RPM's get so high then it cuts back
A distributor cap on a vehicle might be bad if the car is shaking more than normal. Other signs include stalling after the car has been running, squealing and rpm's running high.
you may not be at a high enough rpm
Most modern cars have an automatic choke. This richen's up the fuel mixture and also increases the rpm slightly. once the car warms up the auto choke switches off and the rpm drop off.
Mercedes Benz SLK 230's engine will start cutting out at rpm's above 4k if the car is in park. This is a self preservation safety feature.
Adjust your idle.
open or missing thermostat
No, but a bad alternator will.
This doesn't make since
Put the engine into high RPM in neutral or park.