[greenmonster1970]

Im hoping you all can help me with this ongoing issue. Its not a hot rod, but I've gotten alot of help with my hot rod from this community, so here goes.... I have a 2004 Chevy Silverado 2500HD with 6.0 (Ext. cab). Ive had it bout 8 years and have probably put 5 batteries in it. Something keeps draining them and I give up trying to find it. I had a remote starter put in it when I first got it. That may have been the only thing played with since Ive owned it. Oh yeah and running boards. I hardly drive this truck.

Symptoms
Non start. Very strange. It can sit for a month, start right up. Other times I drive it 3 or 4 days in a row, come out the next day, dead as hell.

Dash lights cutting in and out. Sometimes if I push on the dimmer switch around the dial really hard, or move the dial up and down real quick, they come on. Usually for only a brief amount of time.

Passenger side mirror directional built into the mirror really dim. This just started.

Oil pressure gauge - cant remember the last time it worked. Not sure if its related.

I also THINK a rear reverse light keeps blowing. I just had it inspected and they replaced it, bout a month ago, but I think its out again. Not sure if its related though.

Things Ive tried to fix
New negative battery cable
New starter
Checked all fuses. Couldnt find any with power, but still had draw on the battery (disconnected negative batter cable and had my test light between the negative post and the negative cable and was still lit up).
Checked 2 big ground wires underneath the drivers door bolted to the frame. Seemed ok.

Thanks for any help you all can give me.

 

[greenmonster1970]

I’m back. Still dealing with this problem. There’s definitely a good draw on the battery, not normal parasitic draw. I was driving it everyday, it was fine after I changed the battery , alternator and starter. Came out another day, dead as a door nail. So today I decided to go to battle with it again. The check engine light is on for evap code which it has been for quite a while but the shop down the street keeps passing it for inspection saying it’s not needed to pass and “no big deal “. So today I’m chasing ground wires and notice the wiring going to the evap can up on the backside of the tank is completely broken off and dangling right at the connector. Could this cause a draw? I have my test light between the negative cable and the negative terminal on the battery and it’s nice and bright. I’m going to assume the broken evap wires aren’t the cause of the drain cuz I pulled every fuse and the test light never went out. I’m out of ideas. Thanks for any help.

 

[greenmonster1970]

Thanks. I did that yesterday. No change.