low voltage prob!!!
Thread Starter
Teching In
Joined: Feb 2009
Posts: 17
Likes: 0
From: phoenix, az
low voltage prob!!! my 2001 trans am is having a low voltage problem i had the altinator tested and came out good but i still have low voltage and amps. It only is low when i am at a ilde with the A/C on or when my ratiator fans turn on. i think that it is making my abs and tcs lights come on i ran the code and it sead low input voltage.
i tested it at school (uti) and i only got about 30 amps and 12.4 volts under a full load????
i tested it at school (uti) and i only got about 30 amps and 12.4 volts under a full load????
12 Second Club
Joined: Nov 2005
Posts: 407
Likes: 1
From: Rockwall, TX
Have you looked closely at the bat. cables?
I just replaced my (+) battery cables. The old ones were coroded under the insulation. I couldn't find a replacement without paying the stealership, so I made new ones. The wires are all lower gauge wires than I thought they would be. The one from the alternator to the bat was long and only 8ga I think. That thin of a wire combined with length and corosion can cause significant voltage drop.
I just replaced my (+) battery cables. The old ones were coroded under the insulation. I couldn't find a replacement without paying the stealership, so I made new ones. The wires are all lower gauge wires than I thought they would be. The one from the alternator to the bat was long and only 8ga I think. That thin of a wire combined with length and corosion can cause significant voltage drop.
