Alternator Problems

[MrMasterCraft]

Ok, so I know this is in the wrong section, and it'll probably get moved, but I need help FAST. '02 Yukon, went out to start the truck this morning to let it warm up like I always do, started it, turned the heat knob to full blast, shut the door, walked back inside. Maybe 5 minutes later, come back outside lights are dim, all gauges read like the truck is off So I shut it off, start the camaro, and run jumper cables to the truck for about 10-15 minutes. Truck started, voltage dropped from 14-10 in a little over a minute...

So I'm convinced it's the alternator, but my question is what size do I need? I thought with rear defrost that it was necessary to run a 140? I looked at 2 parts stores websites and it seems they range anywhere from 90-130? The truck has rear defrost, rear heat/ac, etc..... can somebody PLEASE tell me what I need?

[konigandy6]

Ok, so I know this is in the wrong section, and it'll probably get moved, but I need help FAST. '02 Yukon, went out to start the truck this morning to let it warm up like I always do, started it, turned the heat knob to full blast, shut the door, walked back inside. Maybe 5 minutes later, come back outside lights are dim, all gauges read like the truck is off So I shut it off, start the camaro, and run jumper cables to the truck for about 10-15 minutes. Truck started, voltage dropped from 14-10 in a little over a minute...

So I'm convinced it's the alternator, but my question is what size do I need? I thought with rear defrost that it was necessary to run a 140? I looked at 2 parts stores websites and it seems they range anywhere from 90-130? The truck has rear defrost, rear heat/ac, etc..... can somebody PLEASE tell me what I need?

From GM's SI:

Base

Generator Model
Delphi AD230

Rated Output
102 A

Load Test Output
71 A

Optional (Dual)

Generator Model
Delphi AD244

Rated Output
130 A

Load Test Output
91 A

Bosch® Generator

Generator Model
Bosch® 15755900

Rated Output
130 A

Load Test Output
91 A

[MrMasterCraft]

Excellent, thank you very much man!!!