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I have 04 gmc truck the battery goes dead over night with the ignition off I have 12 volts going thru about 7 different fuses under hood that should not have voltage going thru what's the problem?

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  • Cars & Trucks Master
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You can take a battery tester to test.

Launch X431 battery tester

Posted on Jul 20, 2013

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6ya6ya
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Posted on Jan 02, 2017

motor1258
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SOURCE: 97 dodge dakoata main fuse keeps blowing 140 amp fuse

Regulator in alternator obviously faulty, have it bench tested & fixed or replace alternator, and cure your problem.

Posted on May 19, 2009

  • 5 Answers

SOURCE: 04 stratus blower not working

You might have an interconnection problem. I hate these problems, they can be really tough. I had something similar that turned out to be a bad ground connection, but you said that "Relay in box under hood is good and has 12.5 volts going to 1 post"... well OK, good, but then you said "switched the Relays around and everything else worked fine"... well OK, but if it didn't work fine before, you may have a bad relay or maybe a bad connection, so swap them back and see what happens to help isolate the problem. You also said "Ran hot to fan and it works", well in that case, it's not a ground connection at the fan, but still could be further back. It could be bad relay. Good luck to you on that one... as I said... I really hate these kinds of problems. Try to get hold of a wiring diagram if you haven't already. This problem is going to take some patience, but you’ll find it.

Posted on Jun 09, 2009

motor1258
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SOURCE: battery draining with ignition off, clicking sound

Find the relay making the clicking noise by setting your finger on top lightly, then check map on under side of cover for identification.

Posted on Jul 17, 2009

motor1258
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SOURCE: 1962 CHEVROLET TRUCK with points

If/How long will it crank over before it stops? Are you saying it will crank over, but very slow? Has it been sitting quite a while. Got good spark, and fuel?

Posted on Jan 01, 2010

alicantecoli
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SOURCE: 2007 chevy equinox battery goes dead over night

also feed to alternator ,the doides have gone renew the diode pack or the alternator complete

Posted on Apr 08, 2010

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New battery went dead. pulled the fuses and checked for a short. Found the fuse that shows a short just don't know what it goes too


A voltmeter is NOT the correct tool to check for an "ignition-off draw". A voltmeter will show 12 volts if ANYTHING is operating.

There are some things that are SUPPOSED to keep operating when the vehicle is shut off. These include, but are not limited to:
> Powertrain Control Module keep-alive memory
> Radio preset memory
> Clock
> Security/ alarm system
> Remote control recievers (door locks, etc.)

What you need to know is how many AMPS are being drawn from the battery when the vehicle is shut off. This is done by using a shunt bar connected between the battery terminal and the battery cable connector.

Set the ammeter to the lowest setting (usually 2 or 5 amp scale) Connect the ammeter leads accross the shunt bar. Turn off all electrical accessories, ignition switch, etc. and wait for a minimum of 45 minutes for all of the computer systems to go into "sleep" mode. Then open the shunt bar and read the amperage.

The "rule of thumb" is 300 milliamps (or 0.3 amps). This is where you have a problem. Anything less than this is not a problem and is not the cause of your dead battery. My experience is that most vehicles built in the last 15 years or so, will usually measure around 150 milliamps if there is no aftermarket equipment installed. Please note that even this 150 milliamps will measure as 12 volts if measured with a volt meter. A 2 amp draw will also measure as 12 volts....However, a 2 amp draw will kill your battery overnight and the 150 milliamp draw won't.

May 22, 2012 | 1999 Jeep Cherokee

Tip

Voltage draw down found!
1) repaced bad battery
2) rechecked voltage draw...


Voltage draw down found!
1) repaced bad battery
2) rechecked voltage draw still showing 12 volt drain with all under hood fuses, relays, and interior fuses and relays pulled.
3) Computer was the 12 Volt drain, & had to reprogram itself.
4) gave the new battery a good long charge, reinstalled the battery into the vehicle.
5) Hooked the battery up, pulled the keys out of the ignition, close and lock all doors with auto door lock. Waited minimum of 20 min so the computer would go back into the sleep mode.
6) after 20 minute wait, rechecked the voltage draw by removing the neg battery cable from the battery, hooking volt meter + lead to battery cable end, and neg lead to battery neg post, nothing showing or zero reading.
7) Hooked the neg cable up to battery, started the truck and let the engine idle to normal run temp, then fast idled 1200-1300 rpms for 2 minutes, then drove the vehicle for 5+ miles and alternating speeds. All appears back to normal now. Alt showing 14.2 to 14.4 volts, and no other problems.
After all of the afore mentioned, my problems began with a bad battery cell, thus caused my computer to have the memory reset.Until the computer was reset, I had a 12v continious draw down! I got this info from a repair manual, that I purchase sometime ago. Thanks for your alls help........EJB

on Dec 30, 2011 | 1996 GMC Yukon

1 Answer

I had to start my '87 GMC s15 truck manually- sylanoid remained open several times. when i got to my destination, my truck was completely dead. got it home due to a pull-start. thought it was just the...


First check for 12-12.6 volts at battery if you have 12 volts at battery then,check for 12 volts at starter power cable if you have 12 volts there then check for 12 volts on the switch side of starter solenoid ( purple wire ) this should get you started in the right direction.Let me know what you find out.

Apr 21, 2011 | GMC S-15 Cars & Trucks

1 Answer

Fuel pump does not work, is there an inertia switch on it? The connector wire shows 12 volts but will not light test light. Jump the wire from fuse block under the hood to the fuel pump and it works, is it...


under the hood in the black main relay and fuse box.look for fuel pump relay.the relays most likely bad. or a loose wire to the fuel pump.has it been wrecked? have to ask yourself alot of questions when you bypass the pump straight to battery and it works. start with simplelest 1st. check main fuse relay and fuse panel 1st.then go to wiring harness that goes to the pump. thank you for choosing fixya.com.

Apr 14, 2011 | GMC Yukon XL Cars & Trucks

2 Answers

My 2004 envoy starts but there is no electrical. the windows radio tail lights reverse lights dashboard lights ac heat dondoesnt work. but the odometer still works so there is electric and all the fuses...


Sounds like a bad ignition switch. There are 3 main ignition circuits coming from the switch, and one will control the engine and starting. One circuit is probably dead thru the switch, causing all the accessories to not function. I would tr that first.

Feb 23, 2011 | 2004 GMC Envoy

1 Answer

The battery is dead on my s type jag and i can't get into the boot


on the right side of the fuse box (passenger side under the hood) there is a small bolt. you need to get some jumper cables and put the positive lead on this bolt. it is too small to clamp on there so you'll need to hold it on there and have someone else turn on the ignition and pop the trunk. it has to have 12 volts going into the fuse box. of course you need to ground the battery to the car too.

Dec 07, 2010 | 2000 Jaguar S-Type

2 Answers

We are trying to find the fuse for the starter solenoid. the car is a 1998 ford escort lx and will not turn over so we are thinking it's the solenoid but want to check the fuse first.


I don't know about the 98 Escort, a fuse on a starter circuit is very unusual.

You should check the voltage at the battery - then at the starter solenoid, battery side. If you have 12 volts at the battery, 12 volts at the battery side of the solenoid, great. Now, have a partner turn the key to start position and test the starter side of the solenoid. If you haved 12 volts with the key on start position, I would be thinking starter. If you don't have 12 volts on the battery side with the key in start position, I'd be thinking solenoid.

You could also jump the solenoid with a jumper cable to check the starter operation.

Use a volt meter if you have one - a 12 volt test light if you don't have a meter.

Thanks for your question at FixYa.com

Jan 06, 2010 | 1998 Ford Escort

1 Answer

Battery goes dead in about 3 days on my 2004 gmc 2500hd


Take it to Sears or another large auto parts store and ask them to check the condition of the battery and chargeing system. They do it for free.
Other than that, you can pull off the positive battery post, connect one end of a 12 volt test light to the pos.battery post and the other end to the pos.battery cable.
The 12 volt test light will be on if some thing is on.One by one pull the fuses out and see if the light goes out, then if the lights still on put that fuse back in an go to the next fuse.When you get to the circuit that is staying on to drain the battery the light will go out.Look on the fuse box and see whats connected to that circuit and then you will have an idea what to check for problems.

Nov 06, 2009 | 2004 GMC Sierra 2500

2 Answers

The battery keeps going dead in my 03 z71, only thing out of place is i cannot shut off the headlights manually anymore,it's stuck in auto. Alternato is fine and so is the battery, drains iin about 7...


Well if lights are not staying on then you have a draw of power somewhere. Easy way to find out is volt meter. You take off negative cable and put one end of meter to battery post and other to wire dont let the wire touch post or anyother metal of vehicle. Then go through your fuse box and pull fuse's one at a time until you see voltage on meter drop. Meter should should a (-)negative voltage at start and get smaller when right fuse is pulled take notes and pull all one at a time and replace back in orginal spot. If you find one that really lowers the negative voltage draw on meter good chance you found where problem is. Id start by checking all interior lights first, including glovebox.

Sep 12, 2009 | 2003 GMC Sierra 1500

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