Question about 2004 Pontiac Grand Prix

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2004 grand prix. battery goes dead in about 2 days without driving the car. tried pulling all fuses inside car and under hood. put amp meter in line with negitive terminal of battery and have and constant draw of 1+ amp with every fuse pulled out. check the battery it is ok.

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  • Jonathan S
    Jonathan S Jun 05, 2010

    Would go through fuses and relays again to isolate the draw but would use a test light instead to guage the brightness of the draw. Would start underhood pulling fuses and watching the test light pull fuses one at a time when the light starts dimming significantly you probably found your suspect circuit to track down. Unfortunately this can be extremely tedious and time consuming. This really does not have an easy solution but message me back and I will help as much as possible. Does your vehicle have any aftermarket equipment that may be wired directly to battery? A fully loaded GM product can have up to .025 parasitic draw anything more then that is excessive average is about .015

  • Richard Scordino Jun 05, 2010

    Likely you have a rectifier bridge going bad inside the alternator.

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6 Suggested Answers

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Posted on Jan 02, 2017

SOURCE: 2004 grand prix gt going crazy

I think its you alternator, the battery and alternator kind of work back to back with each other. I will take the car to shop that you know and can trust and have them diagnose the car all together. Good Luck.



Chula_07

Posted on Jan 26, 2009

demonram440
  • 42 Answers

SOURCE: '97 Grand Prix 3.1L...Head Gasket? Manifold? Control Module?

Hi Melody- it feels like you could be right. it feels like your car was well worn when you got it. common causes of overheating are coolant too low, which is what i suspect was the case when you first got it. a stuck closed thermostat not allowing coolant to circulate. i assume you have an electric cooling fan- check to see if your fan motor is fried. you could also have large air pockets inside your cooling system which can give false coolant level. when you pour coolant into your radiator rather than your overflow tank, you introduce air into the cooling system that has to be purged by allowing the bubbles to work their way out through your radiator by squeezing your coolant hose you can assist the escape of these air pockets (with engine running) evidence of a cracked head can be presence of coolant in your engine oil-pull your oil dipstick and look. you say no evidence of coolant leakage, however, look underneath your car and check to see if there is coolant splatter surrounding the underside. it maybe that your car is maintaining enough pressure to run but when engine temps reach a point to where the radiator fan should kick on, and/or the thermostat should open to allow coolant flow and these things dont happen-the result is what you describe with no power and overheating that will eventually overstress your head(s) warped heads can cause the symptoms you describe. you can perform a compression test to help pinpoint a blown cyl. an idea for fixing your car for cheap would be to take it to your local high school auto shop. the only way kids learn the trade is by subject cars. ill bet you can even arrange them to pick it up. the will fix your car for cost. you would only need to supply whatever parts are needed to make the repair. its a win-win situation because they get to learn by fixing your car and you get to use your car for doing mommy things without fear of labor fees. which are around $120/hr. I hope i have helped you with your car good luck!

Posted on Feb 12, 2009

  • 206 Answers

SOURCE: good alternator & battery, but battery goes dead just sitting

The regulator could be sticking in the alternator. Unplug the alternator and see if the battery goes dead. I replaced an alternator once and the new regulator was bad.

Posted on Feb 15, 2009

motor1258
  • 6674 Answers

SOURCE: 89 firebird blows fuse that powers fuel pump and ecm?

That joint & where wires separate, would be a good spot to use a clamp on amp meter, if you have, or know someone who has one, then you could get reading on each one, and zero in on one(s) with most draw.

Posted on Apr 01, 2009

  • 400 Answers

SOURCE: 1998 Pontiac Grand Prix Problem. 5 speed a/c

I'd say that your blower motor resistor has shorted internaly.

Posted on Jul 01, 2009

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2005 JEEP GRAND CHEROKEE PARASITIC DRAIN


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I have an 04 F150 5.4L . I have a draw on my battery, I checked the battery with a light from the neg terminal to the battery post. I have pulled every fuse and the light continues to glow bright with a...


Would have no way of knowing

You can put the test light away though

You need to use an amp meter in either
battery cable lead and start over,doing what you
already did.

You have to wait ten minutes for some modules
to time out.

All your test light did, was drop battery voltage
across the bulb. You know the bulb is good,
nothing else.

This is an exercise in current draw,not voltage.

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Hi Friend:

My name is David i'll be helping you with your problem:

#1) You said you Tested your Starter,OK If your starter is showing it has 12 -12.6 Volts then you do have a Fully charged Battery.

#2) Also to test the battery properly you need to Load test it ,with a Battery tester that you can Put the specified load on it. Cold Cranking Amps. that your battery indicates on the sticker on battery.

#3) Turn on your Head Lights, if battery is fully charged your head lights should be very Bright. If not.

#4) Next step make sure your Battery cables are Very Clean & Free of any Corrosion,also make sure NO corrosion is underneath the Battery Cables Insulation,To Check just take a Knife cut about 2 inches back from cable clamps and look for Acid build up Under that Area.(Blueish/Green & white) sometimes.

#5) If you see some corrosion replace the Cable or cables.

#6) Next you'll need to check is your starter relay.its located in your fuse block ,inside under dash/or its under your Hood in the Fuse and Relay box.Its about a inch square and has 4- Terminals (Plugs) on it. It should be labeled starter relay.

#7) Its only about a $10-$15 part.I would take it to your local auto parts they can check it there with a OHM meter for resistance.

#8) if all the Above checks out as Good,then check ALL your Wiring connections on your Starter.if they are all still good and tight and Clean.

#9) if All above checks out Good the only thing it could be is your Ignition Switch .Located on your Steering Column.

i'm sure these step by step solutions will find your problem and get you back on the road.

Thank You Sir for using Fixya Please let me know that i've helped solve your Problem by Voting.

Thank You Again: From d_hubbs.

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