Short somewhere in 87 GTA
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From: Huntsville Ontario Canada
Car: 87,88,89 GTA
Engine: 305+350 TPI
Transmission: AUTOMATIC
Short somewhere in 87 GTA
Hi Guys heres whats going on i cant leave this car sit for any longer than 12 hours or the battery is dead when i go start it HOW can i determine what is drawing the power Electrical is NOT my strong point any help to determine my prob would be appreciated.
Thanks in advance
Tom in Huntsville Ontario Canada
Thanks in advance
Tom in Huntsville Ontario Canada
Thread Starter
Junior Member
iTrader: (1)
Joined: Nov 2011
Posts: 29
Likes: 0
From: Huntsville Ontario Canada
Car: 87,88,89 GTA
Engine: 305+350 TPI
Transmission: AUTOMATIC
Re: Short somewhere in 87 GTA
Hi Guys heres whats going on i cant leave this car sit for any longer than 12 hours or the battery is dead when i go start it HOW can i determine what is drawing the power Electrical is NOT my strong point any help to determine my prob would be appreciated.
Thanks in advance
Tom in Huntsville Ontario Canada
Thanks in advance
Tom in Huntsville Ontario Canada
Joined: Sep 2005
Posts: 27,918
Likes: 2,448
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Short somewhere in 87 GTA
Disconnect the + batt cable. Connect an ammeter in series with it; that is, + lead of the ammeter to the + terminal of the batt, and - lead of the ammeter to the now-disconnected batt cable. This will show you how much current the car is drawing.
Then remove the fuses, one at a time, and see if the draw disappears. Then track down what's being fed by that fuse until you find the offender.
Might want to start with the simple stuff first though... make sure the light in the spare tire well is turned off if you have that, make sure the underhood light shuts off when you close the hood, etc.
If the car has aftermarket stereo, alarm, or other electronic eqpt, that would be another GREAT place to look for hack jobs and mis-wiring.
A car electrical system is one of the simplest parts of a car. Any person of average intelligence should have no problem with it. If an idiot like me can manage it, surely it is within the grasp of virtually anyone else. First thing to do is to put the idea out of your mind that "it's hard" and "I can't do it" and all that, and LEARN about it.
Then remove the fuses, one at a time, and see if the draw disappears. Then track down what's being fed by that fuse until you find the offender.
Might want to start with the simple stuff first though... make sure the light in the spare tire well is turned off if you have that, make sure the underhood light shuts off when you close the hood, etc.
If the car has aftermarket stereo, alarm, or other electronic eqpt, that would be another GREAT place to look for hack jobs and mis-wiring.
A car electrical system is one of the simplest parts of a car. Any person of average intelligence should have no problem with it. If an idiot like me can manage it, surely it is within the grasp of virtually anyone else. First thing to do is to put the idea out of your mind that "it's hard" and "I can't do it" and all that, and LEARN about it.
Thread Starter
Junior Member
iTrader: (1)
Joined: Nov 2011
Posts: 29
Likes: 0
From: Huntsville Ontario Canada
Car: 87,88,89 GTA
Engine: 305+350 TPI
Transmission: AUTOMATIC
Re: Short somewhere in 87 GTA
Sofakindom did exactley what you said and pulled all fuses one by one with the meter as you described and it stayed at 11.89 V never dropped at all what am i doing wrong here HELP!!!!! LOL
Tom
Tom
Joined: Sep 2005
Posts: 27,918
Likes: 2,448
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Short somewhere in 87 GTA
what am i doing wrong here
11.89 V
The point is, to measure CURRENT (in essence, flow) THROUGH the system, not VOLTAGE (in essence, pressure) APPLIED to it.
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