You might have bigger fish to fry before to long-- you're probably going to lose your intake manifold gaskets sometime down the road. There was a TSB issued on this problem in earlier models (and I believe the 2004 as well), and thousands of people have been having costly repairs that GM won't cover even though they've known of the problem for some time. It has to do with the Dexcool coolant they put in there (long life coolant) which has somehow been attacking the gasket, leading to a leak-- possibly an internal leak where the coolant gets into your oil and creates the potential for a very bad condition called hydrolock. Further, GM may void your warranty if you flush and oil-change all that stuff out and replace it with the green classic antifreeze.Watch for dropping coolant levels even if you don't see any drips and have that engine checked and replace the gaskets with Felpro replacements. Suggestion-- get thee away from the GM. I threw in some Bars Leak and stuck a FOR SALE sign on mine. Cheap, dirty repair? Dang skippy. I'm not wasting a plug nickel on the thang. That's GM's baby. Nissan is much better and they stand behind their cars. GM needs to stand in front of theirs.
Nothing. An AC motor has no magnet and cannot generate electricity.
You can spin that motor either direction until you are blue in the face, but you won't get enough to light a flashlight bulb. Electricity depends on a magnetic field and there ain't one.
Like Dan has explained, no magnetic field = no Lenz's Law = no conductor cutting a magnetic field = no volts, no amps, nothing happens!
It would just act like a spinning wheel. Without any applied voltage to create a magnetic field it should just do nothing. The single phase AC motor has two main components: 1. The field winding on a laminated steel core (stator) which creates magnetic fields which alternate from North to South and back at the frequency of the applied AC voltage, and 2. A rotating armature (rotor) which has (usually) several windings of wire, each with a pole face. The AC voltage applied to this via the commutator and carbon brushes causes a rapidly rotating magnetic field to be set up which effectively jumps from one pole face to another. The magnetic forces between the field electromagnets and the armature electromagnets cause the armature to rotate, usually at a synchronous speed governed by the AC frequency being applied, usually 50/60 hertz. Sometimes the armature and field windings are connected in series and sometimes in parallel, depending on the type of motor. Another type is an induction (sometimes called a squirrel cage motor) motor which has no brushes. It uses just a field winding to induce a rotating magnetic field into the armature, but we can leave that for another time. Anyway it cannot generate power either. So once this voltage is removed all the magnetic fields collapse and vanish. Without magnetism there can be NO electro-magnetism. So spin the motor all you like, but with NO magnetism=NO volts. Yes you can try this at home. Take an ordinary electric fan. Unplug it and connect a multimeter set to read volts to the power plug. Spin the fan as hard as you can. Zero volts (DC or AC) shown on the meter means it is not acting as a generator or alternator.. (The answer could be quite different in the case of a DC motor, especially a permanent magnet field type, which would act like a generator) Oh sorry a one word answer.....flywheel.
