GStrength

iTrader: (4)

I was installing my car alarm. When I went to remote start the car it tried to crank but gave out due to power loss. I eventually jumped the car, when I disconnected the jumper wires, the car slowly turned off. I tested it with a voltmeter after re-jumping the car. The volts were quickly counting down until the car died. I pulled the alternator and had it tested at Auto Zone where they connect it to the machine and it passed the test. None of this occurred until I wired up the alarm system. Provide advice and insight if any.

black_maxed95

iTrader: (41)

my guess is you wired something wrong...your car ran fine, you hooked up an alarm, and now the car has electrical issues...pretty foolish to immediately think the alternator died.

Feldman

iTrader: (1)

were your battery and brake lights on while the car was on?

everything points to alternator, but black maxed brings up a good point. you did just mess with your wiring system and now you have a power problem.

Do all your alarm functions work?

I once had an alternator that would work on and off for several months until it died, maybe your alternator really was the problem and then it decided to work when it got tested.

njmaxseltd

iTrader: (19)

Something isn't wired correctly.
Check the ignition switch wiring to your remote start.

GStrength

iTrader: (4)

I removed it a second time, and still the alternator passed the test. I removed all wiring, back tracked from the alternator all the way to the main relay console. Checked every fuse and still the problem exist. I got mad and just revved it while it was still connected to the other battery on a car that wasn't running. When I checked the volt meter on the battery that was attached to the other car it was reading 13.5 volts meaning the alternator was working. So all I had to do was rev it up one good time.

maxfever1987

iTrader: (93)

couple of things either alternator but highly doubt it since ur car worked fine before install my guess goes to that maybe u connected some wire directly to the battery source and was drawing constant current? try rewire the entire alarm again good luck

maximomo

iTrader: (2)

It depends on how you powered your alarm system.

The charging system on a Max is load sensitive. If you powered your alarm system directly off the battery then you are bypassing the load detection system and your alternator won't ever know to increase the charge to your battery to compensate for the drain from your alarm system.

If you powered your alarm system through the fuse panel then I would pull the fuse on the alarm system and see if the problem is even related to the alarm install or just a coincidence and something else failed.