stutaeng
I'm Awesome
I kept up with your other thread about the coolant issue. I knew I recognized the truck on your Avatar, LOL.The other day I brought my truck out of hibernation because of the issues I was having with my DD that I posted on here. Charged the battery and it fired up let it run and then drove around the block just to get the battery a good charge. Came out the next day and it was completely dead again. So today I took out the battery and I am going to swap it out at Costco. It’s sticker says 6/19 and it had a 36 month warranty so hopefully they will just swap it for me since it doesn’t seem to hold a charge anymore.
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Hopefully your battery is the issue with your truck. Supposedly, some of the later GMT800 ('03+?) clusters have some lead-free solder that something happens to it over time and it will drain your battery. Cluster has to be sent off for solder re-flow. I bought an 04 project SUV and the seller told me that it had some battery drain issue and he said he thought it was the cluster. It's been sitting for a bout a year, but I want to get it back running. I did a draw on it a few times, and it's less than 50mA. About $175 IIRC for the cluster re-flow. There's a company up in your area that I was going to send mine to. BTW: I believe they can add the transmission temp. guage to your cluster ('03+ only) while they are at it, if it turns out to be that.
Edit: To rule out the cluster, you can just unplug it for a few days after you shut off the engine and leave it overnight, and see if the problem goes away.
Another issue it had on mine that was disclosed was an issue with the 4x4. I was crawling under there changing some O2 sensors and realized the harness to the TC was severed. I don't know if the drain was related to that, but I held off sending my cluster for the time being.
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