Are pulleys on both the old and new alternators the same size? Did you turn the automatic belt tensioner to release tension on belt?
depends on what way you are testing it but you either have a bad connection between the alternator and the battery or your battery is bad and cant hold the charge what voltage are you getting
It sounds as if the fuel filter is clogged and not getting enough fuel to the injectors.
There is no way to adjust the belt tensioner, if it's not keeping enough tension on the belt the complete tensioner itself will need replaced.
check the serpentine belt tensioner for being bad, it might not be keeping the drive belt tight enough against the pulleys.
loosen the one or two bolts holding the alternator in place, i believe 14mm, then loosen the 12mm on the adjuster (side) and "screw" the 12mm bolt down to lower the alternator down enough and replace the belt. This is almost the same for every Toyota engine which doesnt use an automatic belt tensioner (serpentine) on the alternator.
A loose or worn serpentine belt can cause low voltage. I just had to trace out an electrical issue in my bkazer. Turns out tge worn serpentine belt slipped quietly at low rpms and couldbt turn tge alternator fast enough to produce enough voltage to power the vehicle. So my battery was taking on most of the electrical acessories and not charging so after a while.....no juice
a serpentine belt runs the alternator and the more stuff you have running (heat, lights, radio) it causes the alternator to have to have the belt run faster to supply power to the things that are running. if your belt is loose or worn, it will slip and cannot provide the amount circulation needed for the alternator to produce enough sustainable power to run everything at once. the belt itself runs several components, and if the power steering goes out as well, then most likely that you have a bad belt. you can always try tightening it with the idler pulley. but if the belt is too worn or stretched, then i recommend just getting a new belt entirely. cheap fix really.
Disconnect the battery negative. Disconnect the wires from the alternator - there should be a quick connect plug, and, in the back of the alternator, you'll need to undo the nut which holds in the wire that goes from the alternator to the battery positive. Remove the serpentine belt... while not personally familiar with the Pontiac G6, it most likely has a serpentine belt, which means there's a belt tensioner... hook a ratchet to the belt tensioner, turn it counterclockwise, and it should leave enough slack to allow you to remove the engine belt. After that, locate the bolts which hold the alternator onto the mount and remove them. Once that's done, you just pry the alternator out.
more than likely it's your alternator that is slowly but surely going out,or it could be your serpentine belt making the noise because it isn't tight enough around all the drive wheels.hope this helps.bye It can also be your power steering. Check your tensioner, alternator. Check for small leaks around your PS res. Small leak, low fluid and your PS will cause a slight wine. Alot of variables you need to check
The serpentine belt and the tensioner on a 300 SE motor is part of the fan system that controls all of the smaller motors on the front of the engine. The serpentine belt helps turn the alternator, power steering pump, water pump, and the fan. The tensioner is a pulley on this belt that helps to keep the belt tight enough to stay on, but not too tight to hinder operation.
not enough
There are special wrenches for tight quarters, but I would try a breaker bar first because they have a smaller head than a ratchet. I hope this helps you. Mark