Question about 2000 GMC Jimmy

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2000 GMC Jimmy excessive parasidic draw on battery

I have a 2000 gmc jimmy after going through 3 new batteries I have finaly seen the large amp. draw. (.496 amps). Before I tested and replaced the other batteries I checked for a draw and there was only .023 amps. So I thought I had a bad battery, The second time the same thing, dead battery with the acceptable draw (.023). I came to the conclusion that intermitently some module or something was staying on and causing the draw. The only fused circuit that carried the draw was the tcm fuse under the hood for the BCM, when removing this fuse amperage went to .008. Moving to the under dash (side) fuse panel with the tcm fuse installed I could not get the draw below .445. No visable light or power to speedo, the ign. doesn't effect it, the glove box light is off, I just cant locate the source. Please help if you could Thanks. Brad

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  • Tallen2303 Jul 21, 2010

    Was there ever a solution to this? I'm having the same problem.

  • Anonymous Mar 13, 2014

    mbnc 50a fuse circuit has intermittent 7 amp draw and kills battery over night



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Is the alternator charging properly.

Posted on Sep 11, 2008


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Why are my guages in 2000 gmc jimmy going crazy

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Aug 30, 2015 | GMC Cars & Trucks

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did you put the unit in with the battery still connected? you my need to disconnect it, for a few seconds, then reconnect it, cycle the key on and off 3 to 4 times, (not start ,just on) , then try to start it, if that doesn't help you my need to get an obd on it and "clear all" then try again.

Apr 05, 2013 | 2000 GMC Jimmy

1 Answer

How do I change the fuel pump relay on a 2000 gmc jimmy

This might apply .. but it for a 1999 Jimmy:
Electronic Fuel Pump Computer Problem6 Cyl Four Wheel Drive

Your symptoms could also be do to other issues ... not just the fuel pump relay. Read the embedded link within the 2carpros response.

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Jan 17, 2018 | 1999 GMC Jimmy

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Insturments not working 2000 jimmy

Check all your fuses.
Check all you charges (batteries, cigarrete lighter, radio)
is that works.
You have a brain problem.
It's been a while seen I have seen a Jimmy, but they have a relay switch to the brain, and OUT or the brain.
Sometimes, things just Die.
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Oct 09, 2012 | 2000 GMC Jimmy

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2000 GMC Jimmy turns over hard like it is the battery, but changed out the battery and starter, still no change, turns over hard maybe 2-3 turns and then that's it.

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1 Answer

Why does my 2000 jimmy keeping trying to go in to 4lo

i had the same thing happen to me i put a new 4by4 switch and it fixed the problem

Oct 27, 2009 | 2000 GMC Jimmy

2 Answers

I have a 2000 GMC Jimmy and my battery constantly needs recharging we have a new battery, alternator, and fuel pump and it still does it we also checked the connections and wires. We are at a lost please...

charging voltage to battery should be;
13.6 to 14.2 - the lower the voltage the higher the charging amps i.e:
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14.2 1209 amps
example only.

Jun 23, 2009 | 2000 GMC Jimmy

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