Connect a voltmeter across the battery terminals without engine running reading should be around 12.8
With engine running reading should be 13.8-14.2 if you are getting these numbers alternator is charging battery
No way, only if the battery fails under a load test
Pressure test ?? Cooling system? A/C? Fuel Pressure? Compression?
The 1997 Pontiac Transport has 2 different alternators . One is 105 amps and the second is 140 amps. It will depend on the power equipment you have on your vehicle. You may want to get an AVR test to make sure that it is the alternator before changing it. That test is about $30.00. Good luck
If you pick up a Haynes or Chilton manual, you'll find all of the fuel system test procedures and requirements. FriPilot
Charge it, replace it,test the alternator,Charge it, replace it,test the alternator,
Test the volts out with a Volt Meter. Or take it to Advance Auto Parts. They will check it for free.
Car would either have to be running or alternator removed for bench test
You can test drive a Pontiac G6 convertible at a local Pontiac dealership. You may also be able to locate a used car dealership that has a Pontiac G6 convertible and be able to test drive the car there.
Bad connection, connections to battery aren't tight.
run it and then disconnect the negative wire from the battery if alternator dies its bad.
if your dash lights are fading in and out you probably need to go to auto zone and have your alternator test and a load test done on your battery
An old quick trick is to remove the positive terminal from the battery while the car is running. If the car dies or runs very rough the odds are it's the alternator. A lot of auto stores will test the whole charging system for free.