there are two possibilities for this,
* the engine get fuel, may be because of broken or stuk open idle solenoid, even when the engine is turned off still fuel is supplied to the conbuston chamber. * well you have turned of the ignition, still the engine runs, sure the engine is hot and there are carbon deposits in the combustion chamber which are hot enough to ignite the fuel mixture in the combustion chamber. or else the the exhaust valve edge around the valve head is so thin therefore it stays at red hot to ignite the fuel mixture in the combustion chamber. your engine will stop running if you can stop one of the two possibilities.
It turned out to be the alternator going bad. Replaced alternator. No more growling.
If the engine is running, this is normal. If the engine is turned off and the pump continues to run all the time there is a problem, possibly a faulty fuel pump relay.
A 1998 Chevy Cavalier is an interference engine meaning any timing failure will result in catastrophic damage. A free-running engine will simply stop running until and can readily be fixed.
The engine itself creates Vacuum once it is running.
To answer your question I need to know the year model of your Chevy Celebrity as well as the engine that it has in it.1996 chevy calavlier 2.2
Why would you fix a Chevy Spectrum? lol!
Check for vacuum leaks.
No you can not , That is what makes and keeps the engine running
The fuel pump runs constantly as long as the engine is running.
Key on Engine not running 55 - 61 psi. Engine running pressure should decrease 3-10 psi.
the fan should run after car is tuned off until engine the temp is down ,then it the fan should shut off
Check your electrical system. You probably have a short circuit, melted switch, or ghost(and no I do not mean a creepy spooky ghost) in the system.