I have a 2004 z71 chevy tahoe 4x4, 5.3L, with 28,000 miles. I reolaced my factory battery back in April after I had to jumpstart it on 3 different occassions. I don't drive it much so I just figured it was time for another one. Bought a new battery and same thing. Battery dies every 7 to 10 days if I don't drive truck. I have had several people look at this since and they all give me a different answer. Since all of this I have installed a new radio in my truck. Nothing special, and I am still using the stock amplifier so no new power gain, besides problem started before radio install. Dealership says the radio is causing this and it took them probally all of 30 minutes in shop total. I took to radio installer twice and everything is hooked up correctly. I took to a local starter, alternator, battery specialist and he said with the truck off I was pulling 8 and a half volts. He said my alternator was charging fine and we replaced the battery I bought back in April because it was shot. Ok so he pulled every fuse under my hood and inside vehicle and charge was still there. I even unhooked new radio completely just to show him that I did not think it was the radio. He agreed that it definately was not the radio to. I am taking truck back to dealer to look at again. I was wondering if you had any suggestions on where to start at? I keep getting the run around. A mechanic told me that it could be the alternator or starter having a internal problem.
Friday, September 14th, 2007 AT 7:10 AM