idling too fast - adjust choke
My 1990 idles at about 850 and with the ac on 1100
Broken/disconnected throttle cable
Your radiator cooling fan is malfunctioning
you might have pulled a vacuum hose off
1994 Chevy suburban....no coolant leaks...but looses coolant is this an older car? does the car loose engine coolant?
Need to know year and type of car including what motor please.
replace the alternator
A vacuum leak is one possibility. More info on the vehicle would help.
If a car starts and idles but does not accelerate can be numerous problems such as a malfunctioning throttle position sensor, fuel regulator, Manifold Airflow sensor or vacuum leak. A diagnostics test will reveal what is malfunctioning and needs to be repaired.